Ph.D. in Engineering, University of Tsukuba

Computer Graphics

Numerical Analysis

GPGPU

Implicit Surface

Meshless Methods

コンピュータグラフィックス

数値解析

Informatics, Computer systems, Computer system

Informatics, Computational science, Computational science

Informatics, High-performance computing, High performance computing

Apr. 2023 - Present
Nihon University, Department of Mathematical Information Engineering, College of Industrial Technology, Professor

Apr. 2020 - Mar. 2023
Nihon University, Department of Mathematical Information Engineering, College of Industrial Technology, Associate Professor

Apr. 2018 - Mar. 2020
Nihon University, Department of Mathematical Information Engineering, College of Industrial Technology, Junior Associate Professor

Apr. 2015 - Mar. 2018
Nihon University, Department of Mathematical Information Engineering, College of Industrial Technology, Assistant Professor

Apr. 2013 - Mar. 2015
Seikei University, Faculty of Science and Technology, Department of Computer and Information Science, Part-time Lecturer

Jul. 2012 - Mar. 2015
Tokyo University of Technology, School of Computer Science, Assistant Professor

Apr. 2011 - Jun. 2012
Tokyo University of Technology, School of Computer Science, Part-time Lecturer

Apr. 2008 - Jun. 2012
Seikei University, Faculty of Science and Technology, Department of Computer and Information Science, Assistant Professor

Apr. 2006 - Mar. 2008
Seikei University, Faculty of Science and Technology, Department of Computer and Information Science, Research Associate

Apr. 2003 - Mar. 2006
University of Tsukuba, Graduate School of Systems and Information Engineering, Doctoral Program in Computer Science

Apr. 2001 - Mar. 2003
University of Tsukuba, Graduate School of Science and Engineering, Master's Program in Science and Engineering

Apr. 1997 - Mar. 2001
Yamagata University, Faculty of Engineering, Department of Electrical and Information Engineering

Jul. 2022 - Present
Finance Chair, Japan Society for Simulation Technology

Jun. 2018 - Present
Director, Japan Society for Simulation Technology

Jun. 2018 - Jul. 2022
Vice-Chairman of Planning Committee, Japan Society for Simulation Technology

Sep. 2012 - Jun. 2018
Delegate, Japan Society for Simulation Technology

Japan Society for Simulation Technology, Outstanding Presentation Award
Investigation of Meshless Time-Domain Method with Interpolating Moving Least-Squares Based Shape Functions, International society
Taku Itoh

The Japan Society for Industrial and Applied Mathematics, Paper Award 2008 (The Japan Society for Industrial and Applied Mathematics (Application))
A Charge Points-Location Method for Numerical Conformal Mappings of Multiply-Connected Domains Using Padé Approximation, Official journal
Yi-Bin Lu;Taku Itoh;Tetsuya Sakurai

The Japan Society for Industrial and Applied Mathematics, 日本応用数理学会・2005年度若手優秀講演賞
陰関数曲面モデルと属性情報関数の同時生成, Japan society
Taku Itoh

Performance Evaluation of Electromagnetic Shield Constructed from Open-Cell Metal Foam Based on Sphere Functions
Y. Hanaoka; T. Itoh; K. Tateyama; S. Nakata; and K. Watanabe
CMES: Computer Modeling in Engineering & Sciences, Jun. 2022, Refereed

A Mesh-Generation Scheme for the Large Helical Device Based on the Structure of Magnetic-Field Lines
D. Takada; T. Itoh; M. Kobayashi; and H. Nakamura
Plasma and Fusion Research, Jul. 2021, Refereed, Not invited
Corresponding

Shape Modelling of Metal Foams of Open/Closed States and their Intermediates by Implicit Function
Y. Hanaoka; T. Itoh; K. Tateyama; S. Nakata; and K. Watanabe
Journal of Advanced Simulation in Science and Engineering (JASSE), Jun. 2021, Refereed, Not invited
Corresponding

Sphere-Function-Based Shape Modelling of Open Cell Metal Foam with Plateau Borders
Y. Hanaoka; T. Itoh; S. Nakata; and K. Watanabe
Journal of Advanced Simulation in Science and Engineering (JASSE), Apr. 2020, Refereed, Not invited
Corresponding

Three-Dimensional Shape Modelling of Metal Foam with Rounded Cells by Implicit Surfaces
Y. Hanaoka; M. Nojiri; T. Itoh; S. Nakata; and K. Watanabe
Journal of Advanced Simulation in Science and Engineering (JASSE), May 2019, Refereed, Not invited
Corresponding

Modified Improved Interpolating Moving Least Squares Method for Meshless Approaches
Y. Fujita; S. Ikuno; T. Itoh; and H. Nakamura
Trans. on Magnetics, May 2019, Refereed, Not invited

Efficient Simulation of Electromagnetic Wave Propagation in Complex Shaped Domain by Hybrid Method of FDTD and MTDM Based on Interpolating Moving Least-Squares Method
T. Itoh and S. Ikuno
Trans. on Magnetics, Jun. 2017, Refereed, Not invited
Lead

Variable Preconditioned Krylov Subspace Method with Communication Avoiding Technique for Electromagnetic Analysis
S. Ikuno; G. Chen; T. Itoh; S. Nakata; and K. Abe
Trans. on Magnetics, Jun. 2017, Refereed, Not invited

Efficient Simulation of Electromagnetic Wave Propagation in Complex Shaped Domain by Hybrid Method of FDTD and MTDM Based on Interpolating Moving Least-Squares Method
T. Itoh and S. Ikuno
Trans. on Magnetics, Jun. 2017, Refereed, Not invited
Lead

Numerical Investigation of Preconditioning for Iterative Methods in Linear Systems Obtained by Extended Element-Free Galerkin Method
T. Itoh; A. Saitoh; S. Ikuno; and A. Kamitani
Journal of Advanced Simulation in Science and Engineering (JASSE), Apr. 2017, Refereed, Not invited
Lead

Interpolating Moving Least-Squares-Based Meshless Time-Domain Method for Stable Simulation of Electromagnetic Wave Propagation in Complex-Shaped Domain
Taku Itoh; Soichiro Ikuno
IEEE TRANSACTIONS ON MAGNETICS, Mar. 2016, Refereed, Not invited

Krylov subspace method with communication avoiding technique for linear system obtained from electromagnetic analysis
Soichiro Ikuno; Gong Chen; Susumu Yamamoto; Taku Itoh; Kuniyoshi Abe; Hiroaki Nakamura
Plasma and Fusion Research, 2016, Refereed, Not invited

Fast Generation of Smooth Implicit Surface Based on Piecewise Polynomial
T. Itoh; and S. Nakata
CMES: Computer Modeling in Engineering & Sciences, Dec. 2015, Refereed, Not invited
Lead

High-Performance Computing of Electromagnetic Wave Propagation Simulation Using Meshless Time-Domain Method on Many Integrated Core Architecture
Taku Itoh; Yuta Hirokawa; Soichiro Ikuno
IEEE TRANSACTIONS ON MAGNETICS, Mar. 2015, Refereed, Not invited

Speedup of Iterative Solver for Electromagnetic Analysis Using Many Integrated Core Architecture
Soichiro Ikuno; Yuta Hirokawa; Taku Itoh
IEEE TRANSACTIONS ON MAGNETICS, Mar. 2015, Refereed, Not invited

Performance Improvement of Extended Boundary Node Method
Ayumu Saitoh; Taku Itoh; Nobuyuki Matsui; Atsushi Kamitani
IEEE TRANSACTIONS ON MAGNETICS, Mar. 2015, Refereed, Not invited

Acceleration Technique for Extended Boundary-Node Method
Ayumu Saitoh; Taku Itoh; Nobuyuki Matsui; Atsushi Kamitani
IEEE TRANSACTIONS ON MAGNETICS, Feb. 2014, Refereed, Not invited

Meshless time-domain method with modified RPIM-based shape functions for electromagneticwave propagation simulation in complex shaped domain
Taku Itoh; Soichiro Ikuno; Hiroaki Nakamura
Plasma and Fusion Research, 2014, Refereed, Not invited

Investigation of Numerical Stability of Electromagnetic Wave Propagation Simulation using Meshless Time Domain Method
T. Itoh; Y. Fujita; and S. Ikuno
Plasma and Fusion Research, Aug. 2013, Refereed, Not invited
Lead

Large-Scale Simulation of Electromagnetic Wave Propagation Using Meshless Time Domain Method With Parallel Processing
Soichiro Ikuno; Yoshihisa Fujita; Yuta Hirokawa; Taku Itoh; Susumu Nakata; Atsushi Kamitani
IEEE TRANSACTIONS ON MAGNETICS, May 2013, Refereed, Not invited

Three-dimensional analysis of electromagneticwave propagation using meshless time domain method
Yoshihisa Fujita; Taku Itoh; Hiroaki Nakamura; Soichiro Ikuno
Plasma and Fusion Research, 2013, Refereed, Not invited

Accuracy improvement of extended boundary-node method
Ayumu Saitoh; Kenta Miyashita; Taku Itoh; Atsushi Kamitani; Teijiro Isokawa; Naotake Kamiura; Nobuyuki Matsui
IEEE Transactions on Magnetics, 2013, Refereed, Not invited

Application of Extended Element-Free Galerkin Method to Nonlinear Problem
Ayumu Saitoh; Taku Itoh; Nobuyuki Matsui; Atsushi Kamitani
IEEE TRANSACTIONS ON MAGNETICS, Feb. 2012, Refereed, Not invited

Iterative Solver for Linear System Obtained by Edge Element: Variable Preconditioned Method With Mixed Precision on GPU
Soichiro Ikuno; Yuki Kawaguchi; Norihisa Fujita; Taku Itoh; Susumu Nakata; Kota Watanabe
IEEE TRANSACTIONS ON MAGNETICS, Feb. 2012, Refereed, Not invited

Numerical simulation of electromagneticwave propagation using time domain meshless method
Soichiro Ikuno; Yoshihisa Fujita; Taku Itoh; Susumu Nakata; Hiroaki Nakamura; Atsushi Kamitani
Plasma and Fusion Research, 2012, Refereed, Not invited

Implicit function with natural behavior over entire domain
Taku Itoh; Ayumu Saitoh; Atsushi Kamitani; Hiroaki Nakamura
Plasma and Fusion Research, 2012, Refereed, Not invited

A Method of Boundary Estimation from 3D Scattered Point Data without Normals by Implicit Function and Delaunay Tetrahedralization
T. Itoh
Journal of Visualization, Dec. 2011, Refereed, Not invited
Lead

A method of boundary estimation from 3D scattered point data without normals by implicit function and Delaunay tetrahedralization
Taku Itoh
Journal of Visualization, Dec. 2011, Refereed, Not invited

Numerical investigations on contactless methods for measuring critical current density in HTS: application of modified constitutive-relation method
A. Kamitani; T. Takayama; T. Itoh; S. Ikuno
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, Nov. 2011, Refereed, Not invited

Efficient Evaluation of Influence Coefficients in Three-Dimensional Extended Boundary-Node Method for Potential Problems
T. Itoh; A. Saitoh; A. Kamitani; and H. Nakamura
Plasma and Fusion Research, Jul. 2011, Refereed, Not invited
Lead

New Implementation Method for Essential Boundary Condition to Extended Element-Free Galerkin Method: Application to Nonlinear Problem
A. Saitoh; T. Itoh; N. Matsui; A. Kamitani; and H. Nakamura
Plasma and Fusion Research, Jul. 2011, Refereed, Not invited

Extension of Meshless Galerkin/Petrov-Galerkin Approach without Using Lagrange Multipliers
A. Kamitani; T. Takayama; T. Itoh; and H. Nakamura
Plasma and Fusion Research, Jul. 2011, Refereed, Not invited

High Performance Iterative Solver for Linear System using Multi GPU
S. Ikuno; N. Fujita; Y. Kawaguchi; T. Itoh; S. Nakata; K. Watanabe; and H. Nakamura
Plasma and Fusion Research, Jul. 2011, Refereed, Not invited

Numerical Investigation on Accuracy Improvement of Permanent Magnet Method for Measuring jC in High-Temperature Superconducting Film
T. Takayama; A. Kamitani; T. Itoh; and H. Nakamura
Plasma and Fusion Research, Jul. 2011, Refereed, Not invited

Development of 2-D Meshless Approaches Without Using Integration Cells
Ayumu Saitoh; Nobuyuki Matsui; Taku Itoh; Atsushi Kamitani
IEEE TRANSACTIONS ON MAGNETICS, May 2011, Refereed, Not invited

Three Dimensional Extended Boundary Node Method to Potential Problem
T. Itoh; A. Saitoh; A. Kamitani; and H. Nakamura
Plasma and Fusion Research, Dec. 2010, Refereed, Not invited
Lead

Application of Two Dimensional Extended Boundary Node Method to Potential Problem
A. Saitoh; T. Itoh; A. Kamitani; N. Matsui; and H. Nakamura
Plasma and Fusion Research, Dec. 2010, Refereed, Not invited

Implicit Surface Reconstruction with Color Distribution Using MPU Implicits
D. Fujimoto; T. Itoh; S. Nakata; T. Kitagawa; M. Oka; and S. Tanaka
Denshi Joho Tsushin Gakkai Ronbunshi, Jun. 2006, Refereed, Not invited
Corresponding

Implicit Surface Reconstruction of 3D Objects: Preconditioned Iterative Methods for the CSRBF-Type Linear Systems
T. Itoh; T. Kitagawa; and S. Nakata
Electronics and Communications in Japan, Part 3, 2006, Refereed, Not invited
Lead

Implicit Surface Reconstruction of 3D Objects: Preconditioned Iterative Methods for the CSRBF-Type Linear Systems
T. Itoh; T. Kitagawa; and S. Nakata
Electronics and Communications in Japan, Part 3, 2006, Refereed, Not invited
Lead

A Charge Points-Location Method for Numerical Conformal Mappings of Multiply-Connected Domains Using Padé Approximation
Y. Lu; T. Itoh; and T. Sakurai
Transactions of the Japan Society for Industrial and Applied Mathematics, 2006, Refereed, Not invited

Incomplete Cholesky Preconditioners with Band-Diagonalization for Sparse Symmetric Systems
T. Itoh; D. Fujimoto; T. Kitagawa; and S. Nakata
ANACM: Applied Numerical Analysis & Computational Mathematics, Dec. 2004, Refereed, Not invited
Lead

Fundamentals of Implicit Surface Reconstruction from Three-Dimensional Scattered Point Data
T. Itoh
Medical Imaging Technology, 25 Sep. 2015, Not refereed, Invited
Lead

Foundations of Java Programming 2 -- An Active Learning Approach --
Sumio Ohno, Eds; Taku Itoh, Joint work, Chapter 9, Inheritance, Sumio Ohno; Eds.; Taku Itoh (Chapter 9)
Corona-sha, Oct. 2014, Not refereed
9784339024876

Simulation Dictionary
Japan Society for; Simulation Technology, Eds; Taku Itoh; Susumu Nakata, Joint work, Implicit Surface Modeling and Visualization, Japan Society for Simulation Technology; Eds.; Taku Itoh and Susumu Nakata
Corona-sha, Feb. 2012, Not refereed
9784339024586

Development of AR-based direction system led by an AI character
Y. Saito; N. Hamano; T. Itoh
The Institute of Electronics, Information and Communication Engineers General Conference 2024 (Poster Session by ISS Juniors & Students), Mar. 2024, Not invited

Modeling of metal foams with adjustable wall thickness for targeted direction and their modification based on B-Spline
N. Hamano; T. Itoh; K. Tateyama; S. Nakata; K. Watanabe
The 20th Collaborative Conference of Research Groups in JSIAM, Mar. 2024, Not invited

An Attempt of Spurious Suppression in Meshless Method
Y. Fujita; T. Itoh; S. Ikuno; R. Dong
ISEM 2023 (Paper ID: 383 / PC-2b: 11), Nov. 2023

Modeling of Metal Foams with Adjustable Wall Thickness in Targeted Direction
N. Hamano; T. Itoh; K. Tateyama; S. Nakata; K. Watanabe
JSST 2023 (Proceedings of JSST 2023, pp. 240-243), Aug. 2023

Generation of Metal Foam Models Taking into Account Thickness of Closed-cell-Walls Based on Sonon Method
N. Hamano and T. Itoh
The 1st Society for Solving Non-linear Problems and its Visualization 2022, Mar. 2023

Generation of Implicit Surfaces Directly Using Volume Data and Application of Higher Order Elements
T. Itoh
The 1st Society for Solving Non-linear Problems and its Visualization 2022, Mar. 2023

Shape Modeling of Metal Foam Based on Implicit Surfaces Generated from Deformed Polyhedra
N. Hamano; T. Itoh; K. Tateyama; S. Nakata; and K. Watanabe
JSST 2022 (Proceedings of JSST 2022, pp. 85-88), Aug. 2022

Performance Evaluation and Extension of Mesh Generation Scheme Based on Structure of Magnetic Field Lines for Large Helical Device
C. Bou; T. Itoh; and M. Kobayashi
The 29th International Toki Conference on Plasma and Fusion Research (ITC-30), Presentation No. 19Ce5, Nov. 2021

Generation of Implicit Surface Based on Isoparametric Elements
T. Itoh
JSST 2021 (Proceedings of JSST 2021, pp. 232-235), Sep. 2021

A Paralellization Strategy for Incomplete Decomposition-based Preconditioning for Solving Linear Systems
T. Yamashita; T. Itoh and H. Tadano
JSST 2021 (Proceedings of JSST 2021, pp. 59-62), Sep. 2021

Modeling of open-cell metal foam using implicit functions and its application to electromagnetic shield
Y. Hanaoka; T. Itoh; K. Tateyama; S. Nakata; and K. Watanabe
The 1st Society for Solving Non-linear Problems and its Visualization 2020, Mar. 2021

Moving Least Squares Approximation with Chebyshev Nodes for Meshless Approaches
Y. Fujita; T. Itoh; S. Ikuno; and S. Nakata
ICCES 2020 (ID: 8331), Jan. 2021, Not invited

Virtual Nodes for Generating Natural Shape Functions for Electromagnetic Wave Propagation Simulation by Meshless Time-Domain Method
T. Itoh; Y. Hanaoka; Y. Fujita; S. Ikuno; and H. Nakamura
CEFC 2020 (Proceedings of CEFC 2020, p. 443), Nov. 2020, Not invited

Numerical Evaluations of Adaptive k-skip Mister R for Linear System Obtained from Electromagnetic Analysis
T. Morishita; A. Matsumoto; Y. Fujita; T. Itoh; K. Abe; and S. Ikuno
CEFC 2020 (Proceedings of CEFC 2020, p. 126), Nov. 2020, Not invited

Condition Number Reduction for An Eigenvalue Problem using Meshless Approach
Y. Fujita; S. Ikuno; T. Itoh; and S. Nakata
CEFC 2020 (Proceedings of CEFC 2020, p. 367), Nov. 2020, Not invited

Modelling of Open Cell Metal Foam with Plateau Borders by Implicit Surfaces
Y. Hanaoka; T. Itoh; S. Nakata; and K. Watanabe
CEFC 2020 (Proceedings of CEFC 2020, p. 164), Nov. 2020, Not invited

Study on Mesh Generation Scheme Based on Structure of Magnetic Field Lines for Large Helical Device
D. Takada; T. Itoh; M. Kobayashi; and H. Nakamura
The 29th International Toki Conference on Plasma and Fusion Research (ITC-29), Oct. 2020, Not invited

Implicit Function Generated by Piecewise Polynomial and Radial Basis Function
Y. Yagi; Y. Hanaoka; D. Takada and T. Itoh
JSST 2019 (Proceedings of JSST 2019, pp. 182-185), Nov. 2019, Not invited

Shape Modelling of Plateau Borders of Metal Foam by Implicit Surface
Y. Hanaoka; T. Itoh; S. Nakata and K. Watanabe
JSST 2019 (Proceedings of JSST 2019, pp. 186-189), Nov. 2019, Not invited

Numerical Evaluations of Variable k-skip MrR Method
A. Matsumoto; Y. Fujita; T. Itoh; K. Abe and S. Ikuno
JSST 2019 (Proceedings of JSST 2019, pp. 100-101), Nov. 2019, Not invited

Numerical Evaluation of Communication Avoiding CG and MrR
A. Matsumoto; S. Ikuno; T. Itoh; Y. Hanaoka; Y. Fujita; and H. Tadano
11th Symposium on ``Discovery, Fusion, Creation of New knowledge by Interdisciplinary Computational Sciences'', Oct. 2019, Center for Computational Sciences, Not invited

Numerical Evaluations of Meshless Time-Domain Method for Electromagnetic Analysis using Various Shape Functions
Y. Fujita; T. Itoh; H. Nakamura; and S. Ikuno
ISEM 2019 (Paper ID: 161), Sep. 2019, Not invited

Electromagnetic Wave Propagation Simulation in a Domain Containing Different Size FDTD Meshes by Connection Strategy Using MTDM
T. Itoh; Y. Fujita; S. Ikuno; and H. Nakamura
ISEM 2019 (Paper ID: 102), Sep. 2019, Not invited

Solid Model of Metal Foam Generated by Implicit Surfaces
Y. Hanaoka; T. Itoh; S. Nakata; and K. Watanabe
The annual conference of the Japan Society for Industrial and Applied Mathematics 2019, Sep. 2019, The Japan Society for Industrial and Applied Mathematics, Not invited

Influence of Imposing Method of Boundary Condition for Analysis Accuracy in Meshless Method
Y. Fujita; T. Itoh; S. Ikuno; H. Nakamura; and S. Nakata
The annual conference of the Japan Society for Industrial and Applied Mathematics 2019, Sep. 2019, The Japan Society for Industrial and Applied Mathematics, Not invited

Performance Evaluation and Convergence Property of Communication Avoiding Krylov Subspace Methods for Parallelization
A. Matsumoto; Y. Fujita; T. Itoh; K. Abe; and S. Ikuno
The annual conference of the Japan Society for Industrial and Applied Mathematics 2019, Sep. 2019, The Japan Society for Industrial and Applied Mathematics, Not invited

Variable Preconditioned Mister R for Linear System Obtained by Edge Element Premise on Parallelization
A. Matsumoto; Y. Fujita; T. Itoh; K. Abe; and S. Ikuno
Compumag 2019 (Session PD-M3, Paper ID: 639), Jul. 2019, Not invited

Investigation of Block Krylov Subspace Methods with Dummy Right-hand Sides for Solving Linear Systems Obtained by Extended Element-Free Galerkin Method
T. Itoh and S. Ikuno
ICCES 2019 (Proceedings of ICCES 2019, Paper ID: 5521), Mar. 2019, Not invited

Numerical Evaluations of Parallelization Efficiencies of Communication Avoiding Krylov Subspace Method for Large Sparse Linear System
A. Matsumoto; T. Itoh and S. Ikuno
ICCES 2019 (Proceedings of ICCES 2019, Paper ID: 5496), Mar. 2019, Not invited

Two-Dimensional Electromagnetic Field Analysis by Meshless Method
Y. Fujita; T. Itoh; S. Ikuno; and H. Nakamura
【非線形問題の解法と可視化に関する研究会】 2018 年度第 2 回研究会, Jan. 2019, Not invited

Stable Simulation of Electromagnetic Wave Propagation in Tapered Waveguide by Meshless Time-Domain Method
T. Itoh; Y. Fujita; S. Ikuno and H. Nakamura
CEFC 2018 (Poster ID: MAP2-17), Oct. 2018, Not invited

Modified Improved Interpolating Moving Least Squares Method for Meshless Approaches
Y. Fujita; S. Ikuno; T. Itoh; and H. Nakamura
CEFC 2018 (Poster ID: MBP2-10), Oct. 2018, Not invited

Convergence Property Improvement and Evaluation of k-skip Conjugate Gradient Method
A. Matsumoto; T. Itoh; Y. Fujita; H. Tadano; S. Ikuno and Y. Hanaoka
10th Symposium on ``Discovery, Fusion, Creation of New knowledge by Interdisciplinary Computational Sciences'', Oct. 2018, Center for Computational Sciences, Not invited

Three-Dimensional Shape Modelling of Metal Foam with Rounded Cells by Implicit Surfaces
Y. Hanaoka; M. Nojiri; T. Itoh; S. Nakata and K. Watanabe
JSST 2018 (Proceedings of JSST 2018, pp. 203-206), Sep. 2018, Not invited

Improvement of Convergence Property of Communication Avoiding Krylov Subspace Method
S. Ikuno; A. Matsumoto; Y. Fujita and T. Itoh
JSST 2018 (Proceedings of JSST 2018, pp. 13-14), Sep. 2018, Not invited

Modified Improved Interpolating Moving Least Squares Approximation for Element-free Galerkin Methods
Y. Fujita; S. Ikuno; T. Itoh and H. Nakamura
JSST 2018 (Proceedings of JSST 2018, pp. 121-123), Sep. 2018, Not invited

Accuracy Improvement of Element-Free Galerkin Method by Modified Improved Interpolating Moving Least Squares Approximation
Y. Fujita; T. Itoh; S. Ikuno; and H. Nakamura
The annual conference of the Japan Society for Industrial and Applied Mathematics 2018, Sep. 2018, The Japan Society for Industrial and Applied Mathematics, Not invited

Applying a Meshless method to Electromagnetic Wave Propagation Analysis in Micro-Scale Domains
T. Itoh; Y. Fujita; S. Ikuno; and H. Nakamura
The annual conference of the Japan Society for Industrial and Applied Mathematics 2018, Sep. 2018, The Japan Society for Industrial and Applied Mathematics, Not invited

Convergence Improvement of Conjugate Gradient Method with Communication Avoiding Algorithm
A. Matsumoto; Y. Fujita; T. Itoh and S. Ikuno
The annual conference of the Japan Society for Industrial and Applied Mathematics 2018, Sep. 2018, The Japan Society for Industrial and Applied Mathematics, Not invited

Parallelization of Variable Preconditioned Krylov Subspace Method for Linear System Obtained from Meshless Approaches
S. Ikuno and T. Itoh
18th SIAM Conference on Parallel Processing for Scientific Computing, Mar. 2018, Not invited

Shape Modeling of a Metal Foam by Implicit Surfaces
M. Nojiri and T. Itoh
50th Scientific Conference in College of Industrial Technology, Nihon University, Dec. 2017, College of Industrial Technology, Nihon University, Not invited

Development of Occupancy Management System Using Location Information
R. Kajima and T. Itoh
50th Scientific Conference in College of Industrial Technology, Nihon University, Dec. 2017, College of Industrial Technology, Nihon University, Not invited

Numerical Investigation of Convergence Property of Iterative Method for Linear System Obtained from Meshless Approaches
S. Ikuno and T. Itoh
JSST 2017 (Proceedings of JSST 2017, pp. 253-254), Oct. 2017, Not invited

Numerical Investigation of Electromagnetic Wave Propagation Simulation in Double-Tapered Waveguide by Meshless Time-Domain Method
T. Itoh; S. Ikuno; and H. Nakamura
JSST 2017 (Proceedings of JSST 2017, pp. 94-96), Oct. 2017, Not invited

Speed-up of Electromagnetic Wave Propagation Simulation by Meshless Method on Oakforest-PACS
T. Itoh; S. Ikuno; N. Fujita; and H. Tadano
The 25th Anniversary Memorial Symposium of CCS, Univ. Tsukuba "Progress and Future of Computational Sciences" / 9th Symposium on "Discovery, Fusion, Creation of New knowledge by Interdisciplinary Computational Sciences," Presentation ID: 37, Oct. 2017, Center for Computational Sciences, University of Tsukuba, Not invited

Interactive Finite-Difference Time-Domain Simulation for Designing Multichannel Photonic Crystal Waveguides
S. Nakata; Y. Yokoyama; T. Itoh; G. Chen; and S. Ikuno
ISEM 2017 (Presentation ID: O-SOC-3:3, Paper ID: 241), Sep. 2017, Not invited

Electromagnetic Wave Propagation Simulation in Tapered Waveguide by Meshless Time-Domain Method
T. Itoh; S. Ikuno; and H. Nakamura
ISEM 2017 (Presentation ID: P-SOC-1:1, Paper ID: 365), Sep. 2017, Not invited

Parallelization of Krylov Subspace Method with Communication Avoiding Technique using Multi-Core Processor and GPU
S. Ikuno; G. Chen; T. Itoh; S. Nakata; and K. Abe
ISEM 2017 (Presentation ID: P-SOC-1:4, Paper ID: 237), Sep. 2017, Not invited

MTDM-based Electromagnetic Wave Propagation Simulation on Multi-Tapered Waveguides
T. Itoh; S. Ikuno; and H. Nakamura
2017年度【非線形問題の解法に関する研究会】第1回非線形・可視化部門研究会，発表ID：18, Aug. 2017, Not invited

Numerical Investigation of Generation Methods for Shape Functions in Meshless Time-Domain Method for Electromagnetic Wave Propagation Simulations
T. Itoh and S. Ikuno
ICCES 2017 (Proceedings of ICCES 2017, Paper ID: 121), Jun. 2017, Not invited

GPU Acceleration of Variable Preconditioned Krylov Subspace Method for Linear System Obtained by Extended Element-Free Galerkin Method
S. Ikuno and T. Itoh
ICCEM 2017 (Proceedings of ICCEM 2017, pp. 344-345), Mar. 2017, IEEE, Not invited

Numerical Investigation of Combination of Meshless Time-Domain Method and Finite-Difference Time-Domain Method
T. Itoh
1st Japan-Thailand Workshop on Numerical and Experimental Approaches to Nonlinear Problems, Dec. 2016, Not invited

Development of Occupancy Status Confirmation System by Raspberry Pi
K. Takanashi and T. Itoh
49th Scientific Conference in College of Industrial Technology, Nihon University, Dec. 2016, College of Industrial Technology, Nihon University, Not invited

Performance Evaluation of Chebyshev Basis Conjugate Gradient Method
A. Ishizaka and T. Itoh
49th Scientific Conference in College of Industrial Technology, Nihon University, Dec. 2016, College of Industrial Technology, Nihon University, Not invited

Interactive Shape Optimization of Waveguide for Electromagnetic Wave using GPU-OpenGL
G. Chen; T. Itoh; S. Nakata; and S. Ikuno
JSST 2016 (Proceedings of JSST 2016, pp. 206-207), Oct. 2016, Not invited

Application of Variable Preconditioned Iterative Methods to Linear Systems Obtained by Meshless Method
T. Itoh
8th Symposium on “Discovery, Fusion, Creation of New knowledge by Interdisciplinary Computational Sciences”, Oct. 2016, Center for Computational Sciences, Not invited

Investigation of Shape Functions Generated by Improved IMLS
T. Itoh
2016年度【非線形問題の解法に関する研究会】第1回非線形・可視化部門研究会, Aug. 2016, Not invited

Application of a Symmetric Preconditioning Method to Asymmetric Linear Systems Obtained by X-EFG
T. Itoh
【プラズマ壁相互作用における非線形現象の理論モデル構築と画像・動画解析手法開発に関する研究会】 &【プラズマ工学・電磁界解析とその数値解析手法およびビジュアライゼーションに関する研究会】 合同研究会第2回非線形・可視化部門研究会, Mar. 2016, Not invited

Speedup of Electromagnetic Analysis by Variable Preconditioned Iterative Methods Implemented on HA-PACS/COMA
T. Itoh
7th Symposium on “Discovery, Fusion, Creation of New knowledge by Interdisciplinary Computational Sciences”, Oct. 2015, Center for Computational Sciences, Not invited

Parallelization of VP Krylov Subspace Method for Linear System Obtained by XEFG on Multi-GPU Cluster
S. Ikuno; G. Chen; and T. Itoh
JSST 2015 (Proceedings of JSST 2015, pp. 30-31), Oct. 2015, Not invited

Meshless Time-Domain Method using Node Alignment based on Poisson Disk Sampling
T. Itoh
【プラズマ壁相互作用における非線形現象の理論モデル構築と画像・動画解析手法開発に関する研究会】 &【プラズマ工学・電磁界解析とその数値解析手法およびビジュアライゼーションに関する研究会】 合同研究会第1回非線形・可視化部門研究会プログラム, Sep. 2015, Not invited

Investigation of Shape Functions for Meshless Time-Domain Method in Electromagnetic Wave Propagation Simulation
T. Itoh
ICCES'2015, Jul. 2015, Not invited

Speedup of Electromagnetic Simulation using Many Integrated Core Architecture
T. Itoh
静止器/回転機合同研究会, Mar. 2015, The Institute of Electrical Engineers of Japan, Not invited

Speed-up of Extended Element-Free Galerkin Method on Many Integrated Core Architecture
T. Itoh
24th International Toki Conference (ITC-24), Nov. 2014, Not invited

Numerical Investigations for Stable Calculation of Meshless Time Domain Method: Influence of Node Alignment on Numerical Stability
S. Ikuno; Y. Ohi; and T. Itoh
JSST 2014 (Proceedings of JSST 2014, pp. 88-89), Oct. 2014, Not invited

Investigation of Meshless Time-Domain Method with Interpolating Moving Least-Squares Based Shape Functions
T. Itoh; and S. Ikuno
JSST 2014 (Proceedings of JSST 2014, pp. 106-107), Oct. 2014, Not invited

Speedup of Variable Preconditioned Iterative Methods for Linear Systems in Electromagnetic Analysis by MIC Architecture
T. Itoh
6th Symposium on “Discovery, Fusion, Creation of New knowledge by Interdisciplinary Computational Sciences”, Oct. 2014, Center for Computational Sciences, Not invited

Stabilization of Meshless Time-Domain Method using Modified RPIM-based Shape Functions
T. Itoh
The annual conference of the Japan Society for Industrial and Applied Mathematics 2014, Sep. 2014, The Japan Society for Industrial and Applied Mathematics, Not invited

Investigation of Performance of Extended Boundary-Node Method Based on Some Kinds of RBFs
A. Saitoh; T. Itoh; N. Matsui; and A. Kamitani
The annual conference of the Japan Society for Industrial and Applied Mathematics 2014, Sep. 2014, The Japan Society for Industrial and Applied Mathematics, Not invited

High Performance Computing of Meshless Time Domain Method on Multi-GPU Cluster
S. Ikuno; S. Nakata; Y. Hirokawa; and T. Itoh
IC-MSQUARE 2014 (Journal of Physics: Conference Series, Vol. 574, Article ID: 012106), Aug. 2014, IOP Publishing, Not invited

Speedup and Numerical Evaluation of Multiple-Precision Krylov Subspace Method using GPU Cluster for Large-Sparse Linear System
Y. Hirokawa; T. Itoh; H. Tadano; and S. Ikuno
Supercomputing Conference 2013 (SC13), Nov. 2013, Not invited

Electrostatic Simulation in Dielectric Composite Material by Extended Element-Free Galerkin Method
T. Itoh; A. Saitoh; S. Ikuno; and A. Kamitani
AsiaSim 2013 (Communications in Computer and Information Science, Vol. 402, pp. 551-560), Nov. 2013, Gary Tan, Not invited

Implementation of Multiple-Precision Arithmetic Krylov Subspace Method on GPU using CUMP
S. Ikuno; Y. Hirokawa; T. Itoh
JSST 2013, Sep. 2013, Not invited

Speed Improvement of Extended Boundary-Node Method by Applying of Radial Point Interpolation Method
A. Saitoh; T. Itoh; N. Matsui; A. Kamitani
JSST 2013, Sep. 2013, Not invited

Electromagnetic Wave Propagation Simulation by Meshless Time-Domain Method Embedding Modified RPIM-Based Shape Functions
T. Itoh; S. Ikuno; and S. Nakata
JSST 2013, Sep. 2013, Not invited

Fast Implementation of Meshless Time Domain Method for Electromagnetic Wave Propagation Simulation in Complex Shaped Domain
T. Itoh and S. Ikuno
ICCES'2013, May 2013, Not invited

Sep. 2012 - Present
Japan Society for Simulation Technology

Aug. 2004 - Present
The Institute of Electronics, Information and Communication Engineers

Apr. 2003 - Present
The Japan Society for Industrial and Applied Mathematics

Generation of metal foam models with non-uniform structure
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research, Apr. 2024 - Mar. 2027
Taku Itoh

Development of Higher Efficient Volume-based Modeling Method and its Engineering Application
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research, Apr. 2021 - Mar. 2025
Taku Itoh

Electromagnetic Wave Propagation Simulations in Microscopic Scale Domains by Meshless Method
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research, Apr. 2018 - Mar. 2023
Taku Itoh

Development of a Stable Meshless Method for Electromagnetic Wave Propagation Analysis in Three-Dimensional Complex Shaped Domains and its Acceleration
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research, Apr. 2015 - Mar. 2018
Taku Itoh

Development of Fast Meshless Analysis System Based on Implicit Function for Complex Shaped Domains
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research, Apr. 2012 - Mar. 2015
Taku Itoh

Development of Complete Meshless Scheme for Finite Node Method and Boundary Node Method and Technological Application
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research, Apr. 2010 - Mar. 2013
Soichiro Ikuno

Generation of an Implicit Surface Based on the Delaunay Tetrahedralization
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research, Apr. 2008 - Mar. 2011
Taku Itoh

Session Chair of PC-1a/PC-1b (Poster Session) in ISEM 2023
interviewer
ISEM 2023 Committee, ISEM 2023 (International Conference), 15 Nov. 2023 - 15 Nov. 2023

Finance Chair of JSST 2023
organizing_member
Japan Society for Simulation Technology, JSST 2023 (International Conference), 02 Feb. 2023 - 01 Nov. 2023

Chair Person in Session 22 of JSST 2023
presenter
Japan Society for Simulation Technology, JSST 2023 (International Conference), 30 Aug. 2023 - 30 Aug. 2023

Publication Chair of JSST 2022
editor
Japan Society for Simulation Technology, JSST 2022 (International Conference), 09 Mar. 2022 - 02 Sep. 2022

Chair Person in Session 15 of JSST 2022
presenter
Japan Society for Simulation Technology, JSST 2022 (International Conference), Iizuka, Fukuoka, Japan (Online), 01 Sep. 2022 - 01 Sep. 2022

Publication Chair of JSST 2021
editor
Japan Society for Simulation Technology, JSST 2021 (International Conference), 18 Mar. 2021 - 03 Sep. 2021

Chair Person in Session 03 of JSST 2021
presenter
Japan Society for Simulation Technology, JSST 2021 (International Conference), Kyoto, Japan (Online), 01 Sep. 2021 - 01 Sep. 2021

Publication Co-Chair of JSST 2019
editor
Japan Society for Simulation Technology, JSST 2019 (International Conference), 23 Jan. 2019 - 07 Nov. 2019

Chair Person in Session 02 of JSST 2019
presenter
Japan Society for Simulation Technology, JSST 2019 (International Conference), Miyazaki, Japan, 05 Nov. 2019 - 05 Nov. 2019

Chair Person of SYMPOSIUM: Computational & Experimental Method: Impact of Accuracy and Uncertainty Fluid/Electromagnetic Dynamics and Other Applications in ICCES 2019
presenter
Tokyo, Japan, 26 Mar. 2019 - 27 Mar. 2019

Publication Co-Chair of JSST 2018
editor
Japan Society for Simulation Technology, JSST 2018 (International Conference), 24 Jan. 2018 - 05 Oct. 2018

Exhibitor of Tokyo Game Show 2018
others
Tokyo Game Show 2018, Makuhari Messe, Inc., 20 Sep. 2018 - 23 Sep. 2018

Chair Person in Session 16 of JSST 2018
presenter
Japan Society for Simulation Technology, JSST 2018 (International Conference), Muroran, Japan, 19 Sep. 2018 - 19 Sep. 2018

Chair Person in Session 17 (Numerical Analysis II) of JSST 2017
presenter
Japan Society for Simulation Technology, JSST 2017 (International Conference), Tokyo, Japan, 26 Oct. 2017 - 26 Oct. 2017

Chair Person of SYMPOSIUM: Computational & Experimental Method: Impact of Accuracy and Uncertainty Fluid/Electromagnetic Dynamics and Other Applications in ICCES 2017
presenter
Funchal, Madeira Island, Portugal, 27 Jun. 2017 - 27 Jun. 2017

Chair Person in Tutorial Talk of the 1st J-T Workshop
presenter
The 1st Japan-Thailand Workshop on Numerical and Experimental Approaches to Nonlinear Problems (1st J-T Workshop), Bangkok, Thailand, 08 Dec. 2016 - 08 Dec. 2016

Publication Co-Chair of JSST 2019
Japan Society for Simulation Technology, JSST 2019 (International Conference), 23 Jan. 2019, Others

Publication Co-Chair of JSST 2018
Japan Society for Simulation Technology, JSST 2018 (International Conference), 24 Jan. 2018, Others

Collaborat...
01 Apr. 2018 - 01 Apr. 2018

Collaborative Interdisciplinary Program for Super Computer (COMA) in University of Tsukuba,Research Title: High-Performance Computing of MTDM and Krylov Subspace Methods in Electromagnetic Problems,Principal Investigator: Taku Itoh
01 Apr. 2018 - 01 Apr. 2018

Collaborat...
01 Apr. 2017 - 01 Apr. 2017

Collaborative Interdisciplinary Program for Super Computer (Oakforest-PACS, COMA, and HA-PACS/TCA) in the University of Tokyo and University of Tsukuba,Research Title: High-Performance Computing of MTDM and Krylov Subspace Methods in Electromagnetic Problems,Principal Investigator: Taku Itoh
01 Apr. 2017 - 01 Apr. 2017

Collaborat...
01 Apr. 2014 - 01 Apr. 2014

Collaborative Interdisciplinary Program for Super Computer (COMA and HA-PACS/TCA) in University of Tsukuba,Research Title: High-Performance Computing of MTDM and Krylov Subspace Methods in Electromagnetic Problems,Principal Investigator: Taku Itoh
01 Apr. 2014 - 01 Apr. 2014