Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10854523 | Semiconductor device | Koichiro Nishizawa, Yoshitsugu Yamamoto, Katsumi Miyawaki, Shinsuke Watanabe | 2020-12-01 |
| 9018736 | Semiconductor device and method of manufacturing semiconductor device | Kazuhiro Maeda | 2015-04-28 |
| 8766445 | Semiconductor device | Takayuki Hisaka, Takahiro Nakamoto, Koichiro Nishizawa | 2014-07-01 |
| 7879635 | Method for manufacturing semiconductor optical device | Hitoshi Sakuma | 2011-02-01 |
| 7851831 | Transistor | Hidetoshi Koyama, Yoshitaka Kamo | 2010-12-14 |
| 7791097 | Nitride semiconductor device and manufacturing method of the same | Kyozo Kanamoto, Katsuomi Shiozawa, Kazushige Kawasaki, Hitoshi Sakuma, Junichi Horie +1 more | 2010-09-07 |
| 7714439 | Nitride semiconductor device and method of manufacturing the same | Katsuomi Shiozawa, Hitoshi Sakuma, Kazushige Kawasaki, Toshiyuki Oishi | 2010-05-11 |
| 7616673 | Semiconductor laser device | Hiromasu Matsuoka, Yasuyuki Nakagawa | 2009-11-10 |
| 7598548 | Semiconductor device and field-effect transistor | — | 2009-10-06 |
| 7569911 | Semiconductor device having an improved wiring or electrode structure | Hitoshi Nakamura, Junji Tanimura | 2009-08-04 |
| 7288486 | Method for manufacturing semiconductor device having via holes | Takeo Shirahama, Kouichirou Hori | 2007-10-30 |
| 6013926 | Semiconductor device with refractory metal element | Tomoki Oku, Naohito Yoshida, Shinichi Miyakuni | 2000-01-11 |
| 5631479 | Semiconductor device with laminated refractory metal schottky barrier gate electrode | — | 1997-05-20 |
| 5498572 | Method of manufacturing semiconductor device | Ryo Hattori, Tomoki Oku | 1996-03-12 |