"Masaki Hada,Katsura Norimatsu,Seiichi Tanaka,Sercan Keskin,Tetsuya Tsuruta,Kyushiro Igarashi,Tadahiko Ishikawa,Ken Onda,Yosuke Kayanuma,Takao Sasagawa,R. J. Dwayne Miller,Shin-ya Koshihara,Kazutaka G. Nakamura","Near-UV Optical Pulse Induces Transient Short-Range Lattice Disordering in a Topological Insulator","WW. Ultrafast Dynamics in Complex Functional Materials, 2015 Materials Research Society (MRS) Spring Meeting",,,,,,2015,Apr.
"Yusuke Takei,Mari Okamoto,S. Man,Ryosuke Kayanuma,Masayuki Kamiya,�V����,KAZUO TSUTSUI,Kuniyuki KAKUSHIMA,Hitoshi Wakabayashi,Yoshinori Kataoka,HIROSHI IWAI","Contact resistances depending on AlGaN layer thickness  for AlGaN/GaN HEMT structures","The Workshop on Future Trend of Nanoelectronics:WIMNACT",,,,,,2014,
"Keita Takahashi,Yuji Hayashi,Ryosuke Kayanuma,Kazuo Tsutsui","Leakage Current Control of Fluoride Ultra-thin Films Grown on Ge Substrates","2011 Int. Conf. on Solid State Devices and Materials (SSDM 2011)",,,,,,2011,Sept.