学術論文

2026年

Taiyo Tanaka, Ryuma Asaba, Masashi Shibata, Keigo Tashiro, Yoshiumi Kohno*, Yasumasa Tomita, “Protonation-Induced Blue Coloration and Photostability of Beta-Carotene by Adsorption on Acidic Silica Materials”, Next Mater. 2026, 11, 101936–101943.
doi : 10.1016/j.nxmate.2026.101936
Yoshiumi Kohno*, Rei Shiozawa, Masashi, Shibata, Yasumasa Tomita, “Stability Enhancement and Color Retention of Blue Anthocyanin Incorporated in the Mesoporous Silica”, Next Mater. 2026, 11, 101825–101831.
doi : 10.1016/j.nxmate.2026.101825

2025年

Yoshiumi Kohno*, Rika Fukagawa, Masashi Shibata, Yasumasa Tomita, “Effective Antioxidants for Stabilization of Chlorophyll Adsorbed on Silica Surface”, Colorants 2025, 4(4), 30.
doi : 10.3390/colorants4040030
Yasumasa Tomita*, Yuki Yoshida, Yusuke Izumi, Yoshiumi Kohno, “Effects of Constituent Elements on the Electrochemical Characteristics of Composites of LiF and Several Spinel Oxides as Cathode Materials for Li-Ion Batteries”, Energies 2025, 18(21), 5764.
doi : 10.3390/en18215764
Keigo Tashiro, Futa Sugiura, Shuhei Shimoda, Yoshiumi Kohno, Yasumasa Tomita*, “Voltage-Dependent Ionic Polarization in TlBr: Alternate Square-Wave Bias Application for Ionic Polarization Control”, Phys. Chem. Chem. Phys. 2025, 27, 21410–21413.
doi : 10.1039/D5CP02386F
Mitsuaki Hirose*, Keigo Tashiro*, Naoya Tajima, Futa Sugiura, Shuhei Shimoda, Yoshiumi Kohno, Yasumasa Tomita, “Stepwise Self-Organization of Hydrogen-Bonded Fibers in a Minimalist Glucose–Pyrene System via CH–π-Stabilized “Iotamers” “, Chem. Commun. 2025, 61, 11939–11942.
doi : 10.1039/D5CC02945G
Cover Art : 10.1039/D5CC90260F
Yoshiumi Kohno*, Rei Shiozawa, Masashi, Shibata, Yasumasa Tomita, “Stability Enhancement and Color Retention of Blue Anthocyanin Incorporated in the Mesoporous Silica”, Next Mater. 2025, 61, 11939–11942.
doi : 10.1039/D5CC02945G

2022年

Yoshiumi Kohno*, Yuya Fujimoto, Masashi Shibata, Yasumasa Tomita, Ryo Watanabe, Choji Fukuhara, “Effect of Stabilizers on the Stability Enhancement of Naturally Occurring Dye Incorporated in Clay Interlayer“, J. Phys. Chem. Solid 2022, 163, 110546.
doi : 10.1016/j.jpcs.2021.110546

2021年

Yasumasa Tomita*, Ryo Saito, Makoto Morishita, Yohei Yamane, Yoshiumi Kohno, “Synthesis, Crystal Structure and Ionic Conductivity of MgAl₂X₈ (X = Cl, Br)”, Solid State Ion. 2021, 361, 115566.
doi : 10.1016/j.ssi.2021.115566

2020年

Yasumasa Tomita*, Ryo Saito, Ayaka Nagata, Yohei Yamane, Yoshiumi Kohno, “Synthesis, Crystal Structure and Ionic Conductivity of MgAl_2–xGa_xCl₈ and MgGa₂Cl₇Br“, Energies 2020, 13(24), 6887.
doi : 10.3390/en13246687
Yasumasa Tomita*, Yuki Yoshida, Yusuke Izumi, Yoshiumi Kohno, “Fabrication and Charge–Discharge Properties of Composites of LiF and Ni_xMn_1–xO Solid Solution for Cathode Material of Li-ion Secondary Battery”, J. Appl. Electrochem. 2020, 50, 917–923.
doi : 10.1007/s10800-020-01444-x
Naoya Katsura, Masashi Shibata, Yoshiumi Kohno*, Yasumasa Tomita, Ryo Watanabe, Choji Fukuhara, “Stabilization of Cu-Chlorophyllin by Incorporation into Hydrotalcite Interlayer”, J. Jpn. Soc. Color Mater. 2020, 93(9), 280–287.
doi : 10.4011/shikizai.93.280
Noritaka Kimura, Hiromasa Nasu, Yoshiumi Kohno, Yasumasa Tomita, “Synthesis and Charge-Discharge Properties of 2LiF-NiF₂ composite and Li₂NiF₄ as a Cathode Material for Li-ion Batteries“, Trans. Mat. Res. Soc. Japan 2020, 45(1), 15–18.
doi : 10.14723/tmrsj.45.15

2018年

Taiga Takaguchi, Yoshiumi Kohno*, Masashi Shibata, Yasumasa Tomita, Choji Fukuhara, Yasuhisa Maeda, “An Easy and Effective Method for the Intercalation of Hydrophobic Natural Dye into Organo-Montmorillonite for Improved Photostability”, J. Phys. Chem. Solid . 2018, 116, 168–173.
doi : 10.1016/j.jpcs.2018.01.027

2017年

Yasumasa Tomita*, Ryo Saito, Ayaka Nagata, Yohei Yamane, Yoshiumi Kohno, “Effects of Li-Doped NiO on the Charge-Discharge Properties of LiF-NiO Composites Used as Cathode Materials for Li-ion Batteries“, J. Appl. Electrochem. 2017, 47, 1057–1063.
doi : 10.1007/s10800-017-1104-z
Yasumasa Tomita*, Noritaka Kimura, Hiromasa Nasu, Yusuke Izumi, Yohei Yamane, Yoshiumi Kohno, Kenkichiro Kobayashi, “Fabrication and Charge–Discharge Properties of Composites of LiF and Ni_xMn_1–xO Solid Solution for Cathode Material of Li-ion Secondary Battery”, J. Appl. Electrochem. 2017, 50, 917–923.
doi : 10.1007/s10800-020-01444-x
Yasumasa Tomita*, Noritaka Kimura, Yusuke Izumi, Juichi Arai, Yoshiumi Kohno, Kenkichiro Kobayashi, “Synthesis and Electrochemical Properties of 4LiF-NiMn₂O₄ Composite as a Cathode Material for Li-Ion Batteries”, J. Power Source 2017, 354(30), 34–40.
doi : 10.1016/j.jpowsour.2017.04.003
Kenkichiro Kobayashi*, Toru Ohtsuki, Yasumasa Tomita, Yoshiumi Kohno, Yasuhisa Maeda, Shigenori Matsushima, “Growth of p-Type ZnOS Films by Pulsed Laser Deposition“, J. Cryst. Growth 2017, 457, 289–293.
doi : 10.1016/j.jcrysgro.2016.06.029

2016年

Yoshiumi Kohno, Nana Ooka, Masashi Shibata, Choji Fukuhara Yasumasa Tomita, Yashuhisa Maeda*, “A simple Method to Make Composites of Hydrophobic Plant-Derived Dye with Organo-Modified Hydrotalcite“, J. Jpn. Soc. Color 2016, 489(12), 414–419.
doi : 10.4011/shikizai.89.414
Yasumasa Tomita*, Jinta Kato, Naoki Kamiya, Yoshiumi Kohno, Kenkichiro Yasuhisa Maeda, Kobayashi, “Effect of Oxidation on Charge-Discharge Property of Iron Fluoride for Li-ion Secondary Battery”, Trans. Mater. Res. Soc. Jpn. 2016, 41(4), 375–378.
doi : 10.14723/tmrsj.41.375
Yasumasa Tomita*, Hiromasa Nasu, Yusuke Izumi, Juichi Arai, Satoshi Otsuka, Yohei Yamane, Koji Yamada, Yoshiumi Kohno, Kenkichiro Kobayashi, “Synthesis and Charge-Discharge Properties of LiF-NiO Composite as a Cathode Material for Li-Iion Batteries”, J. Power Source 2016, 329(15), 406–411.
doi : 10.1016/j.jpowsour.2016.08.095
Yoshiumi Kohno*, Masashi Shibata, Yasumasa Tomita, Kenkichiro Kobayashi, Yasuhisa Maeda*, “Fixation and Stability Enhancement of Beta-Carotene by Organo-Modified Mesoporous Silica“, Micrporous Mesoporous Mater. 2016, 220(15), 1–6.
doi : 10.1016/j.micromeso.2015.08.019

2015年

Daiyu Kodama, Eiko Uchiyama, Yoshiumi Kohno, Yasumasa Tomita, Yashuhisa Maeda*, “A simple Method to Make Composites of Hydrophobic Plant-Derived Dye with Organo-Modified Hydrotalcite“, J. Surf. Fishing Soc. Jpn. 2015, 66(9), 420–424.
doi : 10.4139/sfj.66.420
Yoshiumi Kohno*, Yasushi Kato, Masashi Shibata, Choji Fukuhara, Yasuhisa Maeda, Yasumasa Tomita, Kenkichiro Kobayashi, “Enhanced Stability of Natural Anthocyanin Incorporated in Fe-Containing Mesoporous Silica“, Micrporous Mesoporous Mater. 2015, 203, 232–237.
doi : 10.1016/j.micromeso.2014.10.042

2014年

Taro Hosoi, Daiyu Kodama, Yoshiumi Kohno, Yasumasa Tomita, Kenkichiro Kobayashi, Yasuhisa Maeda*, “Electrochemical Response of Diamond Electrode to Methylene Blue in Aqueous Solution“, J. Surf. Fishing Soc. Jpn. 2014, 65(2), 104–107.
doi : 10.4139/sfj.65.104
Yoshiumi Kohno*, Saeko Asai, Masashi Shibata, Choji Fukuhara, Yasuhisa Maeda, Yasumasa Tomita, Kenkichiro Kobayashi, “Improved Photostability of Hydrophobic Natural Dye Incorporated in Organo-Modified Hydrotalcite”, J. Phys. Chem. Solid 2014, 75(8), 945–950.
doi : 10.1007/s10800-020-01444-x
Xinyu Zhang, Kenkichiro Kobayashi*, Yoshiumi Kohno, Yasumasa Tomita*, Yasuhisa Maeda, Shigenori Matsushima, “Fabrication of p–i–n Devices Consisting of ZnO Quantum Dots Embedded in Ga₂ZnO₄ Film”, Jpn. J. Appl. Phys. 2014, 53, Article number: 06JG09.
doi : 10.7567/JJAP.53.06JG09
Yasumasa Tomita*, Makoto Morishita, Takayoshi Okada, Sahara Sahara, Atsushi Ichikawa, Shin-ichi Ishimaru, Yoshiumi Kohno, Yasuhisa Maeda, Kenkichiro Kobayashi, “Preparation and Characterization of Mesoporous Silica and Lithium-Ion-Conductive Halocomplex Salt Composite“, Scientific Net 2014, 582, 119–122.
doi : 10.4028/www.scientific.net/KEM.582.119
Yoshiumi Kohno*, Eriko Haga, Keiko Yoda, Masashi Shibata, Choji Fukuhara, Yasumasa Tomita, Yasuhisa Maeda, Kenkichiro Kobayashi, “Adsorption Behavior of Natural Anthocyanin Dye on Mesoporous Silica“, J. Phys. Chem. Solid 2014, 75(1), 48–51.
doi : 10.1016/j.jpcs.2013.08.007

2013年

Shinji Ohtani, Takahiro Yano, Satomi Kondo, Yoshiumi Kohno, Yasumasa Tomita, Yasushi Maeda, Kenkichiro Kobayashi*, “Electron Emission from h-BN Films Co-doped with Mg and O Atoms“, Thin Solid Films 2013, 546, 53–57.
doi : 10.1016/j.tsf.2013.05.027
Yasumasa Tomita*, Jinta Kato, Yoshiumi Kohno, Yasuhisa Maeda, Kenkichiro Kobayashi, “Effect of Heat Treatment on Charge-Discharge Property of Fluoride Cathode Materials for Li ion secondary batteries”, Key Eng. Mater. 2013, 566, 131–134.
doi : 10.4028/www.scientific.net/KEM.566.131
Kenkichiro Kobayashi*, Takayuki Koyama, Xinyu Zhang, Yoshiumi Kohno, Yasumasa Tomita*, Yasuhisa Maeda, Shigenori Matsushima, “p-Type ZnO Films Prepared by Alternate Deposition of ZnO and Mg₃N₂ Films”, Jpn. J. Phys. Chem. Solid 2013, 74(1), 80–85.
doi : 10.1016/j.jpcs.2012.08.003

2012年

Kenkichiro Kobayashi*, Takayuki Koyama, Xinyu Zhang, Yoshiumi Kohno, Yasumasa Tomita*, Yasuhisa Maeda, Shigenori Matsushima, “Preparation of p-Type ZnO Films by Alternate Deposition of ZnO and Mg₃N₂ Films”, Proc. Eng. 2012, 36, 427–433.
doi : 10.1016/j.proeng.2012.03.062

2011年

Yoshiumi Kohno*, Masanori Senga, Masashi Shibata, Keiko Yoda, Ryoka Matsushima, Yasumasa Tomita, Yasuhisa Maeda, Kenkichiro Kobayashi, “Stabilization of Flavylium Dye by Incorporation into Fe-Containing Mesoporous Silicate”, Microporous Mesoporous Mater. 2011, 141(1–3), 77–80.
doi : 10.1016/j.micromeso.2010.11.004
Yasushi Morinaga, Yoshiumi Kohno, Yasumasa Tomita, Kenkichiro Kobayashi, Yasuhisa Maeda, “Photoelectrochemical Characteristics of Iron Oxide/Polyaniline in Aqueous Acidic Solution”, Electrochem. 2011, 79(3), 168–171.
doi : 10.5796/electrochemistry.79.168
Kenkichiro Kobayashi*, Yoshiumi Kohno, Yasumasa Tomita, Yasuhisa Maeda, Shigenori Matsushima*, “Possibility for Hole Doping intoamorphous InGaZnO₄ Films Preparedby RF Sputtering”, Phys. Status Solidi C 2011, 8(2), 531–533.
doi : 10.1002/pssc.201000442
Yoshiumi Kohno*, Maki Ito, Mitsuru Kurata, Shuji Ikoma, Masashi Shibata, Ryoka Matsushima, Yasumasa Tomita, Yasuhisa Maeda, Kenkichiro Kobayashi, “Photo-Induced Coloration of 2-Hydroxychalcone in the Clay Interlayer”, J. Photochem. Photobiol. A: Chem. 2011, 218(1), 87–92.
doi : 10.1016/j.jphotochem.2010.12.007
Yoshiumi Kohno*, Mayu Inagawa, Shuji Ikoma, Masashi Shibata, Ryoka Matsushima, Choji Fukuhara, Yasumasa Tomita, Yasuhisa Maeda, Kenkichiro Kobayashi, “Stabilization of a Hydrophobic Natural Dye by Intercalation into Organo-Montmorillonite”, Appl. Clay Sci. 2011, 54(3–4), 202–205.
doi : 10.1016/j.clay.2011.09.001
Koji Yamada*, Shoji Matsuyama, Yasumasa Tomita, Yohei Yamane, “Lithium Ion Conduction Mechanism in LiInI₄ Studied by Single Crystal ⁷Li NMR”, Solid State Ion. 2011, 189(1), 7–12.
doi : 10.1016/j.ssi.2011.02.020

2010年

Yasumasa Tomita*, Hiroyuki Taniya, Yoshiumi Kohno, Yasuhisa Maeda, Kenkichiro Kobayashi, “Preparation of Cathode Active Material for Li-Ion Secondary Battery by Mechanical Milling and Their Properties”, Trans. Mater. Res. Soc. Jpn. 2010, 35(3), 709–712.
doi : 10.14723/tmrsj.35.709
Yoshiumi Kohno*, Ryo Hosomi, Shuji Ikoma, Masashi Shibata, Ryoka Matsushima, Yasushi Morinaga, Yasumasa Tomita, Yasuhisa Maeda, Kenkichiro Kobayashi, “Stabilization of Flavylium Dye by Incorporation into Bentonite Clay”, J Jpn. Soc Color Mater. 2010, 83(3), 103–107.
doi : 10.4011/shikizai.83.103
Kenkichiro Kobayashi*, Hiroki Kobayashi, Yasumasa Tomita, Yasuhisa Maeda, Yoshiumi Kohno,, “Preparation of N-Doped ZnO Films by MOCVD”, Key Mater. 2010, 421–422, 123–126.
doi : 10.4028/www.scientific.net/KEM.421-422.123

2009年

Yoshiumi Kohno*, Reina Kinoshita, Shiji Ikoma Keiko Yoda, Ryoka Matsushima, Yasumasa Tomita, Yasuhisa Maeda, Kenkichiro Kobayashi, “Stabilization of natural Anthocyanin by Intercalation into Montmorillonite”, Appl. Clay Sci. 2009, 42(3–4), 519–523.
doi : 10.1016/j.clay.2008.06.012
Kenkichiro Kobayashi*, Yasumasa Tomita, Yasuhisa Maeda, “Photocatalytic Decomposition of Organic Thin Films in a Nanometer-Scale by an Atomic Force Microscope”, J. Nanosci. Nanotech. 2009, 9(6), 3382–3386.
doi : 10.1166/jnn.2009.NS05
Yoshiumi Kohno*, Koichi Totsuka, Shiji Ikoma Keiko Yoda, Masashi Shibata, Ryoka Matsushima, Yasumasa Tomita, Yasuhisa Maeda, Kenkichiro Kobayashi, “Photostability Enhancement of Anionic Natural Dye by Intercalation into Hydrotalcite”, J. Colloid. Interface Sci. 2009, 337(1), 117–121.
doi : 10.1016/j.jcis.2009.04.065
Yasuhisa Maeda*, Yasushi Morinaga, Yasumasa Tomita, Kenkichiro Kobayashi, “Photoanodic Response of Iron Oxide Electrode in Aqueous Solution and Its Application to Pb²⁺ Removal under Visible Light Irradiation”, Electrochemica Acta 2009, 54(6), 1757–1761.
doi : 10.1016/j.electacta.2008.10.005
Yasumasa Tomita*, Hiroo Nishiyama, Kenkichiro Kobayashi, Yoshiumi Kohno, Yasuhisa Maeda, Koji Yamada, “Substitution Effect for Br on the Lithium Ion Conductivity of Lithium Indium Bromide”, TCS Trans. 2009, 16(29), 137.
doi : 10.1149/1.3115315

2008年

K. Kobayashi, Y. Tomita, Y. Maeda, H. Haneda, “Shallow Li-Acceptor Levels in ZnO Films Co-doped with Li and F Atoms”, Phys. Stat. Sol. C 2008, 5(9), 3122–3124.
doi : 10.1002/pssc.200779191
Y. Tomita*, H. matsushita, K. Kobayashi, Y. Maeda, K. Yamada, “Substitution Effect of Ionic Conductivity in Lithium-ion Conductor, Li₃InBr_6–xCl_x“, Solid State Ion. 2008, 179(21–26), 867–870.
doi : 10.1016/j.ssi.2008.02.012
Kenkichiro Kobayashi*, Y. Kondo, Y. Tomita, Y. Maeda, S. Matsushima, “Low Wet Etching Rates of ZnO Films Prepared by Sputtering of Mixed ZnO and AlN Powder Targets”, Thin Solid Films 2008, 516(15), 4894–4898.
doi : 10.1016/j.tsf.2007.09.021
Kenkichiro Kobayashi*, Masa-aki Maeda, Yasumasa Tomita, Yasuhisa Maeda, “Fabrication and Characterization of In-Ga-Zn-O/NiO Structures”, Thin Solid Films 2008, 516(17), 5903–5906.
doi : 10.1016/j.tsf.2007.10.056
Yasuhisa Maeda*, Takaya Kitagawa, Keisuke Gotoh, Yasumasa Tomita, Kenkichiro Kobayashi, “Photoelectrochemical Behavior of Zinc Oxide Sintered Electrode In Aqueous Solution”, Trans. Mater. Res. Soc. Jpn. 2008, 33(4), 997–1000.
doi : 10.14723/tmrsj.33.997
Yasumasa Tomita, Hideyoshi Matsushima, Tasuhisa Maeda, Kenkichiro Kobayashi, Koji Yamada “Synthesis of Li_3+xIn_1–xM_xBr₆ (M = Zn, Co, Fe) by Nano-grinding and their Ionic Conductivity”, Trans. Mater. Res. Soc. Jpn. 2008, 33(4), 973–976.
doi : 10.14723/tmrsj.33.973
Yasushi Nishihara*, Mikihiro Miyazaki, Yasumasa Tomita*, Yuuki Kadono, Kentaro Takagi, “Synthesis and Ion Conductive Characteristics of Inorganic-Organic Hybrid Polymers Bearing a Tetraarylpentaborate Unit”, J. Polym. Sci. A: Polym. Chem. 2008, 46(23), 7913–7918.
doi : 10.1002/pola.23070

2007年

Y. Kohno, R. Hoshino, R. Matsushima, Y. Tomita, K. Kobayashi, “Stabilization of Flavylium Dyes by Incorporation in the Clay Interlayer”, J. Jpn. Soc. Color Mater. 2007, 80(1), 6–12.
doi : 10.4011/shikizai1937.80.6

2006年

Kenkichiro Kobayashi, Yasumasa Tomita, K. Kobayashi, “Stabilization of Flavylium Dyes by Incorporation in the Clay Interlayer”, Key Eng. Mater. 2006, 301, 185–188.
doi : 10.4028/www.scientific.net/KEM.301.185

2005年

Y. Tomita*, Y. Hasegawa, K. Kobayashi, “Nano-Scale Cu Metal Patterning by Using an Atomic Force Microscope”, Appl. Surf. Sci. 2005, 244(1–4), 107–110.
doi : 10.1016/j.apsusc.2004.10.070
Yasumasa Tomita*, Hideyoshi Matsushita, Yasuhisa Maeda, Kenkichiro Kobayashi, Koji Yamada, “Synthesis and Characterization of Lithium Ion Conductors, Li₃InBr₆ and Its Substituted Compounds”, Defect Diffus. Forum 2005, 242–244, 17–26.
doi : 10.4028/www.scientific.net/DDF.242-244.17
Kenkichiro Kobayashi, Yasumasa Tomita, Yasuhisa Maeda, “Nanorithography Based on Photocatalysis of TiO₂ Using an Atomic Force Microscope”, Jpn. J. Appl. Phys. 2005, 44, 5829–5831.
doi : 10.1143/JJAP.44.5829
Masahiro Sanmyo, Yasumasa Tomita, Kenkichiro Kobayashi*, “Preparation of Zinc Oxide Films Containing Be and N Atoms by Radio-Frequency Magnetron Sputtering”, Thin Solid Films 2005, 472(1–2), 189–194.
doi : 10.1016/j.tsf.2004.06.197
Kenkichiro Kobayashi*, Yasumasa Tomita*, Kazutaka Matsuhisa, Yuji Doi, “Nano-Photocatalytic Decomposition of a Stearic Acid Film Deposited on the TiO₂ by an Atomic Force Microscope.”, Appl. Surf. Sci. 2005, 244(1–4), 389–393.
doi : 10.1016/j.apsusc.2004.09.158

2004年

Yasumasa Tomita*, Hideyoshi Matsushita, Hiroshi Yonekura, Yasuo Yamaguchi, Koji Yamada, Kenkichiro Kobayashi, “Li Ion Conductivity of Solid Electrolyte, Li_3–2xM_xInBr₆ (M = Mg, Ca, Sr and Ba)”, Solid State Ion. 2004, 174(1–4), 35–39.
doi : 10.1016/j.ssi.2004.05.025
Kenkichiro Kobayashi*, Tsutomu Yamazaki, Yuji Hatta, Yasumasa Tomita, “Doping of Bonds into ZnO Films and the Changes of their Electric Properties”, Key Eng. Mater. 2004, 269, 79–82.
doi : 10.4028/www.scientific.net/KEM.269.79
Yasumasa Tomita*, Yasuhisa Maeda, Kenkichiro Kobayashi, “Evolution and Removal of Ferroelectric Domains on KNbO₃ Film by an Atomic Force Microscope with a Conductive Cantilever”, J. Mater. Sci. 2004, 39, 4905–4908.
doi : 10.1023/B:JMSC.0000035333.89344.8f

2003年

Yasumasa Tomita*, Hideyoshi Matsushita, Kenkichiro Kobayashi, Koji Yamada, Tsutomu Okuda, “Li Ion Conductivity of Solid Electrolyte, Li_3–2xM_xInBr₆ (M = Ca, Sr and Ba)”, Electrochemistry 2003, 73(12), 1129–1131.
doi : 10.5796/electrochemistry.71.1129
Masahiro Sanmyo, Yasumasa Tomita, Kenkichiro Kobayashi*, “Doping of Nitrides into Zinc Oxide Films”, Key Eng. Mater. 2003, 248, 87–90.
doi : 10.4028/www.scientific.net/KEM.248.87
Masahiro Sanmyo, Yasumasa Tomita, Kenkichiro Kobayashi*, “Preparation of p-Type ZnO Films by Doping of Be-N Bonds”, Chem. Mater. 2003, 15(4), 819–821.
doi : 10.1021/cm025747y

2002年

Kenkichiro Kobayashi, Yasumasa Tomita, Shinya Yoshida, “Nanometer-Scale Patterning of Oxygen Molecules Adsorbed on TiO₂ Surface by an Atomic Force Microscope with a Conductive Cantilever”, Nano. Lett. 2002, 2(9), 925–927.
doi : 10.1021/nl025629+
Yasumasa Tomita*, Hiroshi Yonekura, Yasuo Yamaguchi, Koji Yamada, Kenkichiro Kobayashi, “Substitution Effect in Lithium Ion Conductor, Li₃InBr₆, Studied by Nuclear Magnetic Resonance”, Zeitschrift für Naturforschung A 2002, 57(6–7), 447–450.
doi : 10.1515/zna-2002-6-728
K. Yamada*, K. Iwaki, Y. Okuda, Y. Tomita, Yasuhisa Maeda, “Impedance Spectroscopy and Structural Investigation of Li⁺ Conductor Li₃InBr₆“, Solid State Ion. 2002, 44, 5829–5831.
doi : 10.1142/9789812776259_0073
Yasumasa Tomita*, Hiroshi Yonekura, Kenkichiro Kobayashi, “Synthesis and Electrical Properties of LiM_xMn_2–xO₄ (M = Cu, Mg and Zn)”, Bull. Chem. Soc. Jpn. 2002, 75(10), 2253–2256.
doi : 10.1246/bcsj.75.2253
Masahiro Sanmyo*, Kenkichiro Kobayashi, Yasumasa Tomita, “Enhancement of N Concentration in ZnO Codoped with Be and N Atoms.”, Chem Lett. 2002, 31(9), 944–945.
doi : 10.1246/cl.2002.944

2001年

Kenkichiro Kobayashi, Yasumasa Tomita, Shinya Yoshida, “Electric and magnetic properties of Nd_2–xCe_xPdO4 with layered structure”, Trans. Mater. Res. Soc. Jon. 2001, 26(1), 31–34.
doi :

2000年

Yasumasa Tomita, Hiroshi Ohki, Koji Yamada, Tsutomu Okuda*, “Ionic Conductivity and Structure of Halocomplex Salts of Group 13 Elements”, Solid State ion. 2000, 136–137(2), 351–355.
doi : 10.1016/S0167-2738(00)00491-4
K. Kobayashi*, Y. Tomita*, S. Morimoto, I. Fukino, “Spatial Arrangement of Oxygen Molecules Absorbed on TiO₂ Surface by an Atomic Force Microscope with a Conductive Cantilever”, J. Mater. Sci. Lett. 2000, 19, 173–175.
doi : 10.1023/A:1006648825188
Kenkichiro Kobayashi*, Yasumasa Tomita, Masahiro Sanmyo, “Electrochemical Generation of Hot Plasma by Pulsed Discharge in an Electrolyte”, J. Phys. Chem. B 2000, 104(26), 6318–6326.
doi : 10.1021/jp993218k
Yasumasa Tomita, Hiroshi Ohki, Koji Yamada, Tsutomu Okuda*, “Dynamic Behavior of Group 13 Elements in Bromocomplexes as Studied by NQR and NMR”, Zeitschrift für Naturforschung A 2000, 55, 117–193.
doi :
K. Kobayashi*, Y. Tomita, M. Yano, “Photo-induced Charge Transfer in Oxides and Nitrides Doped with Transition Metal Ions”, Trans. Mater. Res. Soc. Jpn. 2000, 25(1), 249–252.
doi :

1999年

Y. Tomita*, K. Kobayashi, H. Ohki, K. Yamada, T. Okuda “Diffusion Mechanism of Copper(I) Ion in CuAlBr₄ Studied by Nuclear Magnetic Resonance”, Solid State ion. 1999, 126(1–2), 121–131.
doi : 10.1016/S0167-2738(99)00221-0
Yasumasa Tomita*, Kazutomo Asai, Kenkichiro Kobayashi, “Synthesis and Electrical Properties of Li_1–2xCu_xMn₂O₄“, Chem. Lett. 1999, 28(10), 1023–1024.
doi : 10.1246/cl.1999.1023

1998年

Yasumasa Tomita*, Koji Yamada, Hiroshi Ohki, Tsutomu Okuda, “Structure and Dynamics of Li₃InBr₆ and NaInBr4 by Means of NMR”, Zeitschrift für Naturforschung A 1998, 53, 466–472.
doi : 10.1515/zna-1998-6-730
Yasumasa Tomita*, Aya Fuji, Hiroshi Ohki, Koji Yamada, Tsutomu Ohki, “New Lithium ion Conductor Li₃InBr₆ Studied by ⁷Li NMR”, Chem. Lett. 1998, 27(3), 223–224.
doi : 10.1246/cl.1998.223

1997年

Yasumasa Tomita*, Koji Yamada, Hiroshi Ohki, Tsutomu Okuda, “Cation Diffusion in MGaBr₄ (M = Li, Cu, and Ag) Studied by ⁷Li, ⁶³Cu, and ⁷¹Ga NMR, ⁸¹Br NQR, and Conductivity”, Bull. Chem. Soc. Jpn. 1997, 70(10), 2405–2410.
doi : 10.1246/bcsj.70.2405

1995年

Koji Yamda*, Yasumasa Tomita, Tsutomu Okuda, “Cation self-diffusion in MAIX₄ (M = Cu, Ag ; X = Cl, Br) studied by X-ray diffraction, ⁶³Cu NMR and halogen NQR.”, J. mol. Struct. 1995, 345, 219–227.
doi : 10.1016/0022-2860(94)08449-R