Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8729603 | GaN-based semiconductor element | Seikoh Yoshida | 2014-05-20 |
| 8569800 | Field effect transistor | Takuya Kokawa, Masayuki Iwami, Sadahiro Kato | 2013-10-29 |
| 8525225 | Semiconductor device | Hiroshi Kambayashi, Seikoh Yoshida | 2013-09-03 |
| 8450782 | Field effect transistor, method of manufacturing field effect transistor, and method of forming groove | Yoshihiro Sato, Takehiko Nomura, Takuya Kokawa, Masayuki Iwami, Sadahiro Kato | 2013-05-28 |
| 8304774 | Transistor and method for fabricating the same | Shusuke Kaya, Jiang Li | 2012-11-06 |
| 8304809 | GaN-based semiconductor device and method of manufacturing the same | Shusuke Kaya, Seikoh Yoshida, Sadahiro Kato, Takehiko Nomura, Masayuki Iwami +3 more | 2012-11-06 |
| 8183597 | GaN semiconductor device having a high withstand voltage | Jiang Li, Seikoh Yoshida | 2012-05-22 |
| 8178898 | GaN-based semiconductor element | Seikoh Yoshida | 2012-05-15 |
| 8035128 | Semiconductor device and method for fabricating the same | Shusuke Kaya | 2011-10-11 |
| 7943496 | Method of manufacturing GaN-based transistors | Takehiko Nomura, Shusuke Kaya, Sadahiro Kato | 2011-05-17 |
| 7812371 | GaN based semiconductor element | Shusuke Kaya, Seikoh Yoshida, Sadahiro Kato, Takehiko Nomura, Masayuki Iwami +3 more | 2010-10-12 |
| 6911713 | Optical device having a carrier-depleted layer | Takeharu Yamaguchi, Satoshi Arakawa, Nobumitsu Yamanaka, Akihiko Kasukawa, Ryusuke Nakasaki | 2005-06-28 |
| 6821798 | Semiconductor optical device and method for fabricating same | Satoshi Arakawa, Tatsuto Kurobe, Takeharu Yamaguchi | 2004-11-23 |