Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7858419 | Gallium nitride-based compound semiconductor multilayer structure and production method thereof | Hitoshi Takeda, Hisayuki Miki, Tetsuo Sakurai | 2010-12-28 |
| 7855386 | N-type group III nitride semiconductor layered structure | Akira Bandoh, Hiromitsu Sakai, Mineo Okuyama, Hideki Tomozawa, Hisayuki Miki +3 more | 2010-12-21 |
| 7674644 | Method for fabrication of group III nitride semiconductor | Hisayuki Miki | 2010-03-09 |
| 7537944 | Method for manufacturing p-type group III nitride semiconductor, and group III nitride semiconductor light-emitting device | — | 2009-05-26 |
| 7488971 | Nitride semiconductor; light-emitting device, light-emitting diode, laser device and lamp using the semiconductor; and production methods thereof | Hideki Tomozawa, Mineo Okuyama | 2009-02-10 |
| 7482635 | Gallium nitride-based compound semiconductor multilayer structure and production method thereof | Hitoshi Takeda, Hisayuki Miki, Tetsuo Sakurai | 2009-01-27 |
| 7453091 | Gallium nitride-based semiconductor device | Hideki Tomozawa, Hisayuki Miki | 2008-11-18 |
| 7436045 | Gallium nitride-based semiconductor device | Hideki Tomozawa, Hisayuki Miki | 2008-10-14 |