KS

Kazuhide Sumiyoshi

Sumitomo Electric Industries: 9 patents #3,076 of 21,551Top 15%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #481,009 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12278102 Semiconductor device with silicon nitride passivation film Masaya Okada, Kazutaka Inoue, Takumi YONEMURA 2025-04-15
11430653 Method of manufacturing high electron mobility transistor and high electron mobility transistor Takuji YAMAMURA, Kenya NISHIGUCHI 2022-08-30
10832905 Process of forming silicon nitride (SiN) film and semiconductor device providing SiN film 2020-11-10
10741384 Process of forming silicon nitride film 2020-08-11
10566184 Process of depositing silicon nitride (SiN) film on nitride semiconductor 2020-02-18
10283609 Semiconductor device 2019-05-07
9425348 Group III nitride semiconductor device, and method for fabricating group III nitride semiconductor device Nobuhiro Saga, Shinji Tokuyama, Takashi Kyono, Koji Katayama, Tatsushi Hamaguchi +1 more 2016-08-23
8507305 Group-III nitride semiconductor laser device, method of fabricating group-III nitride semiconductor laser device, and epitaxial substrate Yusuke Yoshizumi, Yohei Enya, Takashi Kyono, Takamichi Sumitomo, Nobuhiro Saga +6 more 2013-08-13
8502310 III nitride semiconductor electronic device, method for manufacturing III nitride semiconductor electronic device, and III nitride semiconductor epitaxial wafer Hiromu Shiomi, Yu Saitoh, Makoto Kiyama 2013-08-06
8349078 Method of forming nitride semiconductor epitaxial layer and method of manufacturing nitride semiconductor device Hiromu Shiomi, Yu Saitoh, Akihiro Hachigo, Makoto Kiyama, Seiji Nakahata 2013-01-08