Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8989228 | Laser diode device, method of driving the same, and laser diode apparatus | Masaru Kuramoto, Tomoyuki Oki, Hiroyuki Yokoyama | 2015-03-24 |
| 7700940 | Gallium nitride-based compound semiconductor device | Shiro Sakai | 2010-04-20 |
| 7372066 | Gallium nitride compound semiconductor device and manufacturing method | Hisao Sato, Shinji Kitazawa, Yoshihiko Muramoto, Shiro Sakai | 2008-05-13 |
| 7186620 | Method of making substrates for nitride semiconductor devices | Koji Otsuka, Junji Sato | 2007-03-06 |