"Keitaro Matsuyama,Hidenori Ohashi,Shoji Miyanishi,Hiroshi Ushiyama,Takeo Yamaguchi","Quantum chemical approach for highly durable anion exchange groups in solid-state alkaline fuel cells",,"RSC Advances",,"Vol. 6","No. 43","pp. 36269-36272",2016,Aug.
"Takayoshi Oshima,Keitarou Matsuyama,Kohei Yoshimatsu,Akira Ohtomo","N-type doping of  γ-Ga<sub>2</sub>O<sub>3</sub> epitaxial film","The 1st International Workshop on Gallium Oxide and Related Materials",,,,,,2015,Nov.
"Takayoshi Oshima,Keitarou Matsuyama,Kohei Yoshimatsu,Akira Ohtomo","Conducting Si-doped γ-Ga<sub>2</sub>O<sub>3</sub> epitaxial films grown by pulsed-laser deposition",,"Journal of Crystal Growth","Elsevier","Volume 421",,"Page 23-26",2015,Apr.
"松山 慶太朗,大島 孝仁,吉松 公平,大友 明","伝導性γ相酸化ガリウム薄膜の作製","第75回応用物理学会秋季学術講演会",,,,,,2014,Sept.