Sep. 2018 - Present
The University of Tokyo, College of Arts and Sciences, Part-Time Lecturer

Apr. 2016 - Present
Nihon University, College of Humanities and Sciences, Department of Physics, Professor

Apr. 2014 - Mar. 2016
Nihon University, College of Humanities and Sciences, Department of Physics, Associate Professor

Apr. 2011 - Mar. 2014
Nihon University, College of Humanities and Sciences, Department of Integrated Sciences in Physics and Biology, Associate Professor

Apr. 2006 - Mar. 2011
Institute for Molecular Science, Department of Materials Molecular Science, Assistant Professor

May 2004 - Mar. 2006
Institute for Molecular Science, Electronic Structure, Research Associate

01 Apr. 2003 - 30 Apr. 2004
日本学術振興会, 海外特別研究員

Apr. 2003 - Apr. 2004
Japan Society for the Promotion of Science (JSPS), Overseas Research Fellowships

Jan. 2002 - Mar. 2003
Alexander von Humboldt, postdoc-fellowship

01 Apr. 1999 - 31 Dec. 2001
慶應義塾大学, 理工学部化学科, 助手

Apr. 1999 - Dec. 2001
Keio University, Faculty of Science and Technology, Department of Chemitry, Research Associate

01 Apr. 1998 - 31 Mar. 1999
日本学術振興会, 特別研究員（ＤＣ１）

Apr. 1998 - Mar. 1999
Japan Society for the Promotion of Science (JSPS), Fellowship (DC1)

Apr. 1998 - Mar. 2001
Keio University, Graduate School, Division of Science and Engineering, Department of Chemistry

Apr. 1996 - Mar. 1998
Keio University, Graduate School, Division of Science and Engineering, Department of Chemistry

Apr. 1992 - Mar. 1996
Keio University, Faculty of Science and Engineering, Department of Chemistry

Jan. 2022 - Sep. 2022
第16回分子科学討論会実行委員, Japan Society for Molecular Science

May 2020 - Sep. 2020
分子科学会オンライン討論会実行委員, 分子科学会

Sep. 2019 - Dec. 2019
プログラム小委員会 編成委員, 日本化学会

Sep. 2012 - Aug. 2018
広報委員, 分子科学会

Nov. 2017 - May 2018
ナノ学会第１６回大会実行委員, ナノ学会

Nov. 2012 - Jul. 2013
ナノ学会第１１回大会実行委員, ナノ学会

Comparison of the Molecular Motility of Tubulin Dimeric Isoforms: Molecular Dynamics Simulations and Diffracted X-ray Tracking Study
Tsutomu Yamane; Takahiro Nakayama; Toru Ekimoto; Masao Inoue; Keigo Ikezaki; Hiroshi Sekiguchi; Masahiro Kuramochi; Yasuo Terao; Ken Judai; Minoru Saito; Mitsunori Ikeguchi; Yuji C. Sasaki
International Journal of Molecular Sciences, Oct. 2023, Refereed, Not invited

Loewner time conversion for q-generalized stochastic dynamics
Yusuke Shibasaki; Minoru Saito; Ken Judai
Journal of Statistical Mechanics: Theory and Experiment, Aug. 2023, Refereed

Water Depletion Enhanced by Halogenation of Benzene
Satoshi Shibuta; Hiroshi Imamura; Kota Shibuta; Ken Judai
J. Phys. Chem. B, Aug. 2021, Refereed
Last

Viscosity study of tert-butyl alcohol aqueous solution by Brownian motion and gravimetric capillaries
Kazuki Furukawa; Satoshi Shibuta; Ken Judai
J. Mol. Liq., Aug. 2020, Refereed, Not invited
Corresponding

Water fluctuation in methanol, ethanol, and 1-propanol aqueous-mixture probed by Brownian motion
Kazuki Furukawa; Sumito Kuronuma; Ken Judai
J. Chem. Phys., Dec. 2018, Refereed, Not invited
Corresponding

Growth Behavior of Gold Nanorods Synthesized by the Seed-Mediated Method: Tracking of Reaction Progress by Time-Resolved X-ray Absorption Near-Edge Structure, Small-Angle X-ray Scattering, and Ultraviolet-Visible Spectroscopy
Yoshikiyo Hatakeyama; Koh Sasaki; Ken Judai; Keiko Nishikawa; Kazuyuki Hino
J. Phys. Chem. C, Apr. 2018, Refereed, Not invited

Brownian motion probe for water-ethanol inhomogeneous mixtures
Kazuki Furukawa; Ken Judai
JOURNAL OF CHEMICAL PHYSICS, Dec. 2017, Refereed, Not invited

Effect of chemical state and occupation site of RE (RE = Yb, Y, Eu, Sm, Nd) on crystal structure and optical property of BaCe1-xRExO3-d —Analyses of origin of peculiar crystal structure and property of BaCe1-xNdxO3-d
Eiki Niwa; Tomomi Hosaka; Takahiro Onoe; Misa Shimizu; Yoshikiyo Hatakeyama; Ken Judai; Fumito Fujishiro; Takuya Hashimoto
Mater. Res. Bull., Mar. 2017, Not refereed, Not invited

Temperature-independent formation of Au nanoparticles in ionic liquids by arc plasma deposition
Yoshikiyo Hatakeyama; Satoshi Kimura; Tatsuya Kameyama; Yoshiaki Agawa; Hiroyuki Tanaka; Ken Judai; Tsukasa Torimoto; Keiko Nishikawa
Chem. Phys. Lett., Jun. 2016, Refereed, Not invited

Low-Temperature Production of Genuinely Amorphous Carbon from Highly Reactive Nanoacetylide Precursors
Ken Judai; Naoyuki Iguchi; Yoshikiyo Hatakeyama
J. Chem., Mar. 2016, Refereed, Not invited
Lead

Anion and cation effects on the size control of Au nanoparticles prepared by sputter deposition in imidazolium-based ionic liquids
Yoshikiyo Hatakeyama; Ken Judai; Kei Onishi; Satoshi Takahashi; Satoshi Kimura; Keiko Nishikawa
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Jan. 2016, Refereed, Not invited

Dependence of crystal symmetry, electrical conduction property and electronic structure of LnFeO(3) (Ln: La, Pr, Nd, Sm) on kinds of Ln(3+)
Niwa, Eiki; Sato, Tsubasa; Watanabe, Yuki; Toyota, Yuichiro; Hatakeyama, Yoshikiyo; Judai, Ken; Shozugawa, Katsumi; Matsuo, Motoyuki; Hashimoto, Takuya
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, Jun. 2015, Refereed, Not invited

Temperature effects on prevalent structures of hydrated Fe+ complexes: Infrared spectroscopy and DFT calculations of Fe+(H2O)n (n = 3–8)
Kazuhiko Ohashi; Jun Sasaki; Gun Yamamoto; Ken Judai; Nobuyuki Nishi; and Hiroshi Sekiya
J. Chem. Phys., Dec. 2014, Refereed, Not invited

Microscopic Structure of Naked Au Nanoparticles Synthesized in Typical Ionic Liquids by Sputter Deposition
Yoshikiyo Hatakeyama; Kiyotaka Asakura; Satoshi Takahashi; Ken Judai; and Keiko Nishikawa
J. Phys. Chem. C, Nov. 2014, Refereed, Not invited

Effect of Adding a Thiol Stabilizer on Synthesis of Au Nanoparticles by Sputter Deposition onto Poly(ethylene glycol)
Yoshikiyo Hatakeyama; Jun-ichi Kato; Tomohiro Mukai; Ken Judai; Keiko Nishikawa
Bull. Chem. Soc. Jpn., Jul. 2014, Refereed, Not invited

Very small "window of opportunity" for generating CO oxidation-active Au-n on TiO2
X. Tang; J. Schneider; A. Dollinger; Y. Luo; A. S. Woerz; K. Judai; S. Abbet; Y. D. Kim; G. F. Gantefoer; D. H. Fairbrother; U. Heiz; K. H. Bowen; S. Proch
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, Refereed, Not invited

Helical Nanostructure of Achiral Silver p-Tolylacetylide Molecules
Ken Judai; Yoshikiyo Hatakeyama; Junichi Nishijo
J. Nanosci., Sep. 2013, Refereed, Not invited
Lead

Infrared Multiphoton Dissociation Spectroscopy of Protonated 1,2-Diaminoethane-water Clusters: Vibrational Assignment via the MP2 Method
Bong Hyun Boo; Sukmin Kang; Ari Furuya; Ken Judai; Nobuyuki Nishi
Bull. Korean Chem. Soc., Aug. 2013, Refereed, Not invited

Coordination and solvation of V+ with ammonia molecules: Infrared photodissociation spectroscopy of V+(NH3)(n) (n=4-8)
N. Koga; K. Ohashi; K. Furukawa; T. Imamura; K. Judai; N. Nishi; H. Sekiya
Chem. Phys. Lett., Jun. 2012, Refereed, Not invited

In situ preparation and catalytic activation of copper nanoparticles from acetylide molecules
Ken Judai; Shigenori Numao; Junichi Nishijo; Nobuyuki Nishi
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, Aug. 2011, Refereed, Not invited

Coordinatively unsaturated cobalt ion in Co+(H2O)(n) (n=4-6) probed with infrared photodissociation spectroscopy
Kazuki Furukawa; Kazuhiko Ohashi; Nobuhiro Koga; Toshitaka Imamura; Ken Judai; Nobuyuki Nishi; Hiroshi Sekiya
CHEMICAL PHYSICS LETTERS, May 2011, Refereed, Not invited

Weak Ferromagnetism and Strong Spin-Spin Interaction Mediated by the Mixed-Valence Ethynyltetrathiafulvalene-Type Ligand
Junichi Nishijo; Ken Judai; Nobuyuki Nishi
INORGANIC CHEMISTRY, Apr. 2011, Refereed, Not invited

Infrared photodissociation spectroscopy of Co⁺(NH₃)_n and Ni⁺(NH₃)_n: preference for tetrahedral or square-planar coordination
T. Imamura; K. Ohashi; J. Sasaki; K. Inoue; K. Furukawa; K. Judai; N. Nishi; H. Sekiya
Phys. Chem. Chem. Phys., Aug. 2010, Refereed, Not invited

Methanol salvation of the Ag⁺ ion probed with infrared photodissociation spectroscopy of Ag⁺(CH₃OH)_n ( n = 1-5 )
K. Furukawa; K. Ohashi; T. Imamura; J. Sasaki; K. Judai; N. Nishi; H. Sekiya
Chem. Phys. Lett., Jun. 2010, Refereed, Not invited

Chromium acetylide complex based ferrimagnet and weak ferromagnet
J. Nishijo; S. Numao; K. Judai; N. Nishi
Inorg. Chem., Sep. 2009, Refereed, Not invited

Infrared photodissociation spectroscopy of V⁺(H₂O)_n (n=2-8): Coordinative saturation of V⁺ with four H₂O molecules
J. Sasaki; K. Ohashi; K. Inoue; T. Imamura; K. Judai; N. Nishi; H. Sekiya
Chem. Phys. Lett., Apr. 2009, Refereed, Not invited

A molecular picture of metal ion salvation: Infrared spectroscopy of Cu⁺(NH₃)_n and Ag⁺(NH₃)_n in the gas phase
K. Ohashi; K. Inoue; T. Iino; J. Sasaki; K. Judai; N. Nishi; H. Sekiya
J. Mol. Liq., Jan. 2009, Refereed, Not invited

Synthesis and characterization of mesoporous carbon nano-dendrites with graphitic ultra-thin walls and their application to supercapacitor electrodes
S. Numao; K. Judai; J. Nishijo; K. Mizuuchi; N. Nishi
Carbon, Jan. 2009, Refereed, Not invited

Ferromagnetic interaction between [Ni(bdt)₂]^- anions in [Mn₂(Saloph)₂(-OH)] [Ni(bdt)₂] (CH₃CN)₂
J. Nishijo; S. Numao; K. Judai; N. Nishi
Polyhedron, Jan. 2009, Refereed, Not invited

Coordination structures of the silver ion: infrared photodissociation spectroscopy of Ag⁺(NH₃)_n (n = 3-8)
K. Inoue; K. Ohashi; T. Iino; J. Sasaki; K. Judai; N. Nishi; H. Sekiya
Phys. Chem. Chem. Phys., Jun. 2008, Refereed, Not invited

Increased electric conductance through physisorbed oxygen on copper nanocables sheathed in carbon
Ken Judai; Shigenori Numao; Ari Furuya; Junichi Nishijo; Nobuyuki Nishi
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Jan. 2008, Refereed, Not invited

Coordination and solvation of copper ion: infrared photodissociation spectroscopy of Cu⁺(NH₃)_n (n = 3-8)
K. Inoue; K. Ohashi; T. Iino; K. Judai; N. Nishi; H. Sekiya
Phys. Chem. Chem. Phys., Sep. 2007, Refereed, Not invited

Facile and mass-producible fabrication of one-dimensional Ag nanoparticle arrays
J. Nishijo; O. Oishi; K. Judai; N. Nishi
Chem. Mater., Aug. 2007, Refereed, Not invited

Cluster chemistry:Size-dependent reactivity induced by reverse spill-over
M. A. Röttgen; S. Abbet; K. Judai; J. M. Antonietti; A. S. Wörz; M. Arenz; C. R. Henry; U. Heiz
J. Am. Chem. Soc., Jul. 2007, Refereed, Not invited

Infrared photodissociation spectroscopy of Al⁺(CH₃OH)_n (n=1-4)
A. Furuya; M. Tsuruta; F. Misaizu; K. Ohno; Y. Inokuchi; K. Judai; N. Nishi
J. Phys. Chem. A, Jun. 2007, Refereed, Not invited

Coordination and salvation of noble metal ions: infrared spectroscopy of Ag⁺(H₂O)_n
T. Iino; K. Ohashi; K. Inoue; K. Judai; N. Nishi; H. Sekiya
Eur. Phys. J. D, May 2007, Refereed, Not invited

Photo-induced evolution of copper sheets from cluster molecules and its application to photolithographic copper patterning
N. Nishi; J. Nishijo; K. Judai; C. Okabe; O. Oishi
Eur. Phys. J. D, May 2007, Refereed, Not invited

Infrared spectroscopy of Cu⁺(H₂O)_n and Ag⁺(H₂O)_n: Coordination and salvation of noble-metal ions
T. Iino; K. Ohashi; K. Inoue; K. Judai; N. Nishi; H. Sekiya
J. Chem. Phys., May 2007, Refereed, Not invited

Solvation Structures of Al⁺(CH₃OH)_n Clusters Studied by Infrared Photodissociation Spectroscopy
A. Furuya; M. Tsuruta; F. Misaizu; K. Ohno; Y. Inokuchi; K. Judai; N. Nishi
J. Phys. Chem. A, 2007, Refereed, Not invited

Self-assembly of copper acetylide molecules into extremely thin nanowires and nanocables
Ken Judai; Junichi Nishijo; Nobuyuki Nishi
ADVANCED MATERIALS, Nov. 2006, Refereed, Not invited

Infrared photodissociation spectra and solvation structures of Cu⁺(H₂0)_n (n=1-4)
T. Iino; K. Ohashi; Y. Mune; Y. Inokuchi; K. Judai; N. Nishi; H. Sekiya
Chem. Phys. Lett., Jun. 2006, Refereed, Not invited

Infrared photodissociation spectroscopy of [Al(NH3)(n)](+) (n=1-5): Solvation structures and insertion reactions of Al+ into NH3
Y Mune; K Ohashi; T Iino; Y Inokuchi; K Judai; N Nishi; H Sekiya
CHEMICAL PHYSICS LETTERS, Feb. 2006, Refereed, Not invited

Conical octopole ion guide: Design, focusing, and its application to the deposition of low energetic clusters
M. A. Rottgen; K. Judai; J. M. Antonietti; U. Heiz; S. Rauschenbach; K. Kern
Rev. Sci. Instrum., Jan. 2006, Refereed, Not invited

Infrared photodissociation spectroscopy of [Al(NH₃)_n]⁺ (n=1-5)
Y. Mune; K. Ohashi; T. Iino; Y. Inokuchi; K. Judai; N. Nishi; H. Sekiya
Chem. Phys. Lett., Jan. 2006, Refereed, Not invited

Carbon-skinned metallic wires and magnetic nanocrystals prepared from metal acetylides
K. Judai; J. Nishijo; C. Okabe; O. Oishi; H. Sawa; N. Nishi
Synth. Met., Nov. 2005, Refereed, Not invited
Lead

Reexamination of the structures and energies of Li₂C₂ and Li₄C₄
S. Y. Lee; B. H. Boo; H. K. Kang; D. Kang; K. Judai; J. Nishijo; N. Nishi
Chem. Phys. Lett., Jul. 2005, Refereed, Not invited

Water-induced ferromagnetism in cobalt acetylide CoC₂ nanoparticles
J. Nishijo; K. Kosugi; H. Sawa; C. Okabe; K. Judai; N. Nishi
Polyhedron, May 2005, Refereed, Not invited

Charging effects on bonding and catalyzed oxidation of CO on Au-8 clusters on MgO
B Yoon; H Hakkinen; U Landman; AS Worz; JM Antonietti; S Abbet; K Judai; U Heiz
SCIENCE, Jan. 2005, Refereed, Not invited

Acetylene trimerization on Ag, Pd, and Rh atoms deposited on MgO thin films
K. Judai; A. S. Worz; S. Abbet; J. M. Antonietti; U. Heiz; A. Del Vitto; L. Giordano; G. Pacchioni
Phys. Chem. Chem. Phys., Jan. 2005, Refereed, Not invited
Lead

Chemistry on single atoms: key factors for the acetylene trimerization on MgO-supported Rh, Pd, and Ag atoms
A. S. Worz; K. Judai; S. Abbet; J. M. Antonietti; U. Heiz; A. Del Vitto; L. Giordano; G. Pacchioni
Chem. Phys. Lett., Oct. 2004, Refereed, Not invited

Low-temperature cluster catalysis
K Judai; S Abbet; AS Worz; U Heiz; CR Henry
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Mar. 2004, Refereed, Not invited

Interaction of Ag, Rh, and Pd atoms with MgO thin films studied by the CO probe molecule
K. Judai; S. Abbet; A. S. Worz; U. Heiz; L. Giordano; G. Pacchioni
J. Phys. Chem. B, Aug. 2003, Refereed, Not invited
Lead

Cluster size-dependent mechanisms of the CO + NO reaction on small Pd_n ( n<=30 ) clusters on oxide surfaces
A. S. Worz; K. Judai; S. Abbet; U. Heiz
J. Am. Chem. Soc., Jun. 2003, Refereed, Not invited

Turn-over frequencies of catalytic reactions on nanocatalysts measured by pulsed molecular beams and quantitative mass spectrometry
K. Judai; S. Abbet; A. S. Worz; M. A. Rottgen; U. Heiz
Int. J. Mass Spectrom., Mar. 2003, Refereed, Not invited
Lead

Chemical reactivity of free and supported metal clusters
K Judai; AS Worz; S Abbet; U Heiz
METAL-LIGAND INTERACTIONS: MOLECULAR, NANO-, MICRO-, AND MACRO-SYSTEMS IN COMPLEX ENVIRONMENTS, 2003, Refereed, Not invited

Chemisorption and reactivity of methanol on MgO thin films
C. Di Valentin; A. Del Vitto; G. Pacchioni; S. Abbet; A. S. Worz; K. Judai; U. Heiz
J. Phys. Chem. B, Oct. 2002, Refereed, Not invited

Synthesis of monodispersed model catalysts using softlanding cluster deposition
S. Abbet; K. Judai; L. Klinger; U. Heiz
Pure and Appl. Chem., Feb. 2002, Refereed, Not invited

Photoelectron spectroscopy of V_x(coronene)_y and Ti_x(coronene)_y anions
M. A. Duncan; A. M. Knight; Y. Negishi; S. Nagao; K. Judai; A. Nakajima; K. Kaya
J. Phys. Chem. A, Oct. 2001, Refereed, Not invited

Electronic and geometric properties of exohedral sodium- and gold- fullerenes
B. Palpant; Y. Negishi; M. Sanekata; K. Miyajima; S. Nagao; K. Judai; D. M. Rayner; B. Simard; P. A. Hackett; A. Nakajima; K. Kaya
J. Chem. Phys, May 2001, Refereed, Not invited

A soft-landing experiment on organometallic cluster ions: Infrared spectroscopy of V(benzene)₂ in Ar matrix
K. Judai; K. Sera; S. Amatsutsumi; K. Yagi; T. Yasuike; S. Yabushita; A. Nakajima; K. Kaya
Chem. Phys. Lett., Feb. 2001, Refereed, Not invited
Lead

Photoelectron spectroscopy of scandium-arene complex anions
K. Judai; Y. Nakamura; M. Tachibana; Y. Negishi; A. Nakajima; K. Kaya
Chem. Lett., Jan. 2001, Refereed, Not invited
Lead

Electronic properties of organometallic metal-benzene complexes [M_n(benzene)_m (M = Sc-Cu)]
T. Kurikawa; H. Takeda; M. Hirano; K. Judai; T. Arita; S. Nagao; A. Nakajima; K. Kaya
Organometallics, Mar. 1999, Refereed, Not invited

Effect of ring substituents on formation rates for vanadium-arene clusters
M. Hirano; K. Judai; A. Nakajima; K. Kaya
J. Phys. Chem. A, Oct. 1997, Refereed, Not invited

Formation of vanadium-arene complex anions and their photoelectron spectroscopy
K. Judai; M. Hirano; H. Kawamata; S. Yabushita; A. Nakajima; K. Kaya
Chem. Phys. Lett., May 1997, Refereed, Not invited
Lead

Acetylene polymerization on supported transition metal clusters
K Judai; S Abbet; AS Worz; AM Ferrari; L Giordano; G Pacchioni; U Heiz
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, May 2003, Not refereed, Not invited

The photoionization spectroscopy on the organometallic sandwich clusters.
宮島謙; 村岡和彦; 橋本征朋; 小原通昭; 十代健; 中嶋敦; 茅幸二
化学反応討論会講演要旨集, 2001

The Pseudo-Band Electronic Structure of V_n(Benzene)_n+1 Clusters.
宮島謙; 橋本征朋; 村岡和彦; 小原通昭; 十代健; 安池智一; 薮下聡; 中嶋敦; 茅幸二
分子構造総合討論会講演要旨集, 2000

知のスクランブル ―文理的思考の挑戦
日本大学文理学部, Joint work, 第16講, 日本大学文理学部
筑摩書房, Feb. 2017, Not refereed

Developing Industry-ready Graduates through Techno-Social Problem-Solving Programs
Maria Antiyasari; Hiroyuki Ishizaki; Ken Judai
Asia-Pacific Association for International Education (APAIE) 2024, Mar. 2024, Not invited

Development of GTI Consortium at Nihon University, College of Humanities and Sciences
Ken Judai; Saika Ogino
GTI Consortium Symposium 2023, Feb. 2024, Invited

International Education through University Consortium Program
Ken Judai
韓国成均館大学校文科大学と日本大学文理学部 第２回次世代研究者ワークショップ, Jan. 2024, Not invited

Precise measurement of particle size for the Brownian motion measurement of particle size for the Brownian motion in water-ethanol mixtures
Kenta Takahashi; Ken Judai
第17回分子科学討論会2023大阪, Sep. 2023, Not invited

Anomaly Brownian Motion in Water-Ethanol Mixtures
Ken Judai; Satoshi Shibuta; Kazuki Furukawa
9th International Discussion Meeting on Relaxations in Complex Systems, Aug. 2023, Not invited

Viscosity measurement by colloidal particles for ethanol aqueous solutions
Ken Judai
ナノ学会第21回大会, May 2023, Not invited

Anomaly Brownian Motion in Water-Ethanol Mixtures
Ken Judai; Satoshi Shibuta; Kazuki Furukawa
第16回分子科学討論会, Sep. 2022, Japan Society for Molecular Science, Not invited

Time Correlation Function Simulation of Dynamic Light Scattering: Effects of Finite Measurement Time
Hinako Terauchi; Ken Judai
第16回分子科学討論会, Sep. 2022, Japan Society for Molecular Science, Not invited

Determining Viscosity by Machine Learning: Toward Understanding Water-Alcohol Mixtures
Souma Inagaki; Ken Judai
第16回分子科学討論会, Sep. 2022, Japan Society for Molecular Science, Not invited

Reinterpreting non-equilibrium dynamics using Loewner time conversion
Y. Shibasaki; M. Saito; K. Judai
日本物理学会2022年秋季大会, Sep. 2022, Not invited

Brownian motion of ellipsoidal polystyrene particles
Kazuki Furukawa; Ken Judai
The 15th Annual Meeting of Japan Society for Molecular Science 2021, Sep. 2021, Not invited

Brownian motion observation of polystyrene beads in solution by dynamic light scattering
Satoshi Shibuta; Ken Judai
The 15th Annual Meeting of Japan Society for Molecular Science 2021, Sep. 2021, Not invited

Brownian Motion Observation of Ethanol Aqueous Solution by Dynamic Light Scattering
Koki Yamazoe; Satoshi Shibuta; Ken Judai
Online Student Symposium of Japan Society for Molecular Science 2020, Sep. 2020, Not invited

Dynamin fluctuation of water-alcohol mixtures by Brownian motion in optical trap
K.Yamazoe; S.Shibuta; K.Judai
第13回分子科学討論会 名古屋2019, Sep. 2019, Not invited

Local structure of alcohol aquaous solutions by Brownian motion of surface modified polystyrene beads
K.Nishiyama; S.Shibuta; K.Judai
第13回分子科学討論会 2019名古屋, Sep. 2019, Not invited

Local Viscosity for Alcohol Aquaous Solutions Probed by Brownian Motion
S.Shibuta; K.Furukawa; K.Judai
第13回分子科学討論会 名古屋2019, Sep. 2019, Not invited

Dynamic Fluctuation of Ethanol Aqueous Solution by Brownian Motion of Colloids
K. Judai; K. Yamazoe; K. Nishiyama; and S. Shibuta
日本物理学会2019年秋季大会, Sep. 2019, Not invited

Inhomogeneity Observation of Alcohol Aqueous Solutions by Brownian Motion
K.Judai; S.Shibuya; K.Furukawa
ナノ学会第17回大会, May 2019, Not invited

Thermal Conductive Property of Amorphous Carbon by Copper Acetylide Nanowire Precursor
R.Sato; K.Judai
ナノ学会第17回大会, May 2019, Not invited

Brownian motion probe for water-alcohol mixture system
K.Furukawa; S.Kuronuma; K.Judai
第12回分子科学討論会 2018福岡, Sep. 2018, Not invited

Surface effect on Brownian motion of water-ethanol mixtures
K.Nishiyama; K.Furukawa; K.Judai
第12回分子科学討論会 2018福岡, Sep. 2018, Not invited

Inhomogeneity in water-alcohol mixtures by a Brownian motion
K.Furukawa; S.Kuronuma; K.Judai
The International Symposium on Small Particles and Inorganic Clusters (ISSPIC19), Aug. 2018, Not invited

Brownian motion probe for water-ethanol inhomogeneous mixture
K.Furukawa; S.Kunonuma; K.Judai
The International Symposium on Small Particles and Inorganic Clusters (ISSPIC19), Aug. 2018, Not invited

BROWNIAN MOTION PROBE FOR WATER-ALCHOL INHOMOGENEOUS MIXTURES
K.Furukawa; S.Kuronuma; K.Judai
Asian Symposium on Nanoscience and Nanotechnology 2018, May 2018, Not invited

Observation of Brownian motion in methanol, ethanol, and 1-propanol aqueous solution
K.Furukawa; S.Kuronuma; K.Judai
ナノ学会第16回大会, May 2018, Not invited

Brownian Motion of Water and Ethanol Mixing Solution
K.Furukawa; S.Kuronuma; K.Judai
日本物理学会2017年秋季大会, Sep. 2017, Not invited

Brownian motion analysis in water/ethanol mixture system
K.Furukawa; S.Kunonuma; K.Judai
第11回分子科学討論会 2017仙台, Sep. 2017, Not invited

Brownian Motion in Methanol, Ethanol, 1-Propanol Aqueous Solution
S.Kuronuma; K.Furukawa; K.Judai
第11回分子科学討論会 2017仙台, Sep. 2017, Not invited

水―エタノール混合溶液中のブラウン運動観測
古川一輝,黒沼澄人,十代健
ナノ学会第15回大会, May 2017, Not invited

Analysis of water-ethanol mixture by Brownian motion
S.Kuronuma; K.Furukawa; K.Judai
第10回分子科学討論会 2016神戸, Sep. 2016, Not invited

Development of nanoparticle production appratus with 3D printed nozzle
K.Kitamura; K.Judai
第10回分子科学討論会 2016神戸, Sep. 2016, Not invited

Tracking of the Growth Processes of Gold Nanorods Synthesized by Seed-mediated Method
Y.Hatakeyama; T.Morita; K.Sasaki; K.Judai; K.Nishikawa; K.Hino
第10回分子科学討論会 2016神戸, Sep. 2016, Not invited

Pressure dependence of nano copper acetylide thermal decomposition for porous carbon materials
R.Sato; K.Judai
The International Symposium on Small Particles and Inorganic Clusters (ISSPIC18), Aug. 2016, Not invited

Brownian motion probe for water and ethanol mixing
S.Kuronuma; K.Furukawa; K.Judai
The International Symposium on Small Particles and Inorganic Clusters (ISSPIC18), Aug. 2016, Not invited

Silver acetylide nano helical structure induced by impurities
S.Ito; K.judai
第9回分子科学討論会 2015東京, Sep. 2015, Not invited

Nanoparticle production for aluminum element in imidazolium ion liquid
K.Kitamura; Y.Hatakeyama; K.Judai
第9回分子科学討論会 2015東京, Sep. 2015, Not invited

Nano Carbon Prepared from Explosive Metal Acetylide
K.Judai; R.Sato; Y.Hatakeyama
第9回分子科学討論会 2015東京, Sep. 2015, Not invited

Role of Cation and Anion in Stabilization of Gold Nanoparticle in Ionic Liquids
Y.Hatakeyama; K.Judai; K.Onishi; S.Takahashi; S.Kimura; K.Nishikawa
第9回分子科学討論会 2015東京, Sep. 2015, Not invited

Sep. 2006 - Present
Japan Society for Molecular Science

May 2005 - Present
Society of Nano Science and Technology

Jan. 1996 - Present
The Chemical Society of Japan

Brownian motion fast analysis of water-ethanol mixture by optical trap
Apr. 2017 - Mar. 2020

Formation of Novel Graphitic Porous Nano-Carbon with Metal Atom Layers inside
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2008 - 2010
NISHI Nobuyuki; JUDAI Ken; NISHIJO JunーIchi

銅アセチリド分子の自己組織化を用いたナノワイヤー合成法の確立と応用展開
日本学術振興会, 科学研究費助成事業, 2005 - 2007
十代 健

Preparation and Structural Studies of Metal/Carbon Nano Composites using Metal Acetylides
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2005 - 2007
NISHI Nobuyuki; JUDAI Ken; NISHIJO Junichi

2014-157838, イオン液体材料及びイオン液体材料の製造方法
畠山義清,十代健,アルバック理工(株)

2010-104958, 2008-281741, 水素吸蔵ナノワイヤ、及び水素吸蔵ナノワイヤの製造方法
西 信之、十代 健、水内 和彦

2008-209249, 2007-046461, 酸素ガス検出素子、及び酸素ガス検出素子用ナノワイヤ
西 信之、十代 健

2002-069622, 2000-254555, クラスターイオン種のソフトランディング方法
茅 幸二、中嶋 敦、十代 健