Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10389239 | Power conversion device with protection device and method of controlling the same | Kaoru Sugimoto, Ryosuke Tamura, Takezo Sugimura | 2019-08-20 |
| 9911842 | Nitride semiconductor device, production method thereof, diode, and field effect transistor | Kazuyuki UMENO, Shinya Otomo, Keishi Takaki, Jiang Li, Takuya Kokawa +3 more | 2018-03-06 |
| 8928003 | Nitride semiconductor device | Katsunori Ueno | 2015-01-06 |
| 8304774 | Transistor and method for fabricating the same | Nariaki Ikeda, Jiang Li | 2012-11-06 |
| 8304809 | GaN-based semiconductor device and method of manufacturing the same | Seikoh Yoshida, Sadahiro Kato, Takehiko Nomura, Nariaki Ikeda, Masayuki Iwami +3 more | 2012-11-06 |
| 8035128 | Semiconductor device and method for fabricating the same | Nariaki Ikeda | 2011-10-11 |
| 7943496 | Method of manufacturing GaN-based transistors | Takehiko Nomura, Nariaki Ikeda, Sadahiro Kato | 2011-05-17 |
| 7812371 | GaN based semiconductor element | Seikoh Yoshida, Sadahiro Kato, Takehiko Nomura, Nariaki Ikeda, Masayuki Iwami +3 more | 2010-10-12 |
| 6795480 | Semiconductor laser device | Takao Ninomiya, Michio Okubo, Seiji Uchiyama | 2004-09-21 |