Issued Patents All Time
Showing 51–75 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8284811 | Gallium nitride-based semiconductor laser diode | Takamichi Sumitomo, Yohei Enya, Masaki Ueno, Katsushi Akita, Takashi Kyono | 2012-10-09 |
| 8265113 | Group-III nitride semiconductor laser device, and method of fabricating group-III nitride semiconductor laser device | Shimpei Takagi, Takatoshi Ikegami, Masaki Ueno, Koji Katayama | 2012-09-11 |
| 8227277 | Group-III nitride semiconductor laser device, and method of fabricating group-III nitride semiconductor laser device | Yohei Enya, Takashi Kyono, Masahiro Adachi, Katsushi Akita, Masaki Ueno +5 more | 2012-07-24 |
| 8228963 | Gallium nitride-based semiconductor optical device, method of fabricating gallium nitride-based semiconductor optical device, and epitaxial wafer | Yohei Enya, Hideki Osada, Keiji Ishibashi, Katsushi Akita, Masaki Ueno | 2012-07-24 |
| 8213475 | Group-III nitride semiconductor laser device, and method for fabricating group-III nitride semiconductor laser device | Shimpei Takagi, Koji Katayama, Masaki Ueno, Takatoshi Ikegami | 2012-07-03 |
| 8207544 | Group-III nitride semiconductor device, epitaxial substrate, and method of fabricating group-III nitride semiconductor device | Yohei Enya, Takashi Kyono, Takamichi Sumitomo, Katsushi Akita, Masaki Ueno +1 more | 2012-06-26 |
| 8207556 | Group III nitride semiconductor device and epitaxial substrate | Takashi Kyono, Yohei Enya, Katsushi Akita, Masaki Ueno, Takamichi Sumitomo +1 more | 2012-06-26 |
| 8183596 | High electron mobility transistor, epitaxial wafer, and method of fabricating high electron mobility transistor | Masaki Ueno, Takashi Kyono, Yohei Enya, Takamichi Sumitomo | 2012-05-22 |
| 8183071 | Method for producing nitride semiconductor optical device and epitaxial wafer | Katsushi Akita, Yohei Enya, Takashi Kyono, Takamichi Sumitomo, Masaki Ueno +1 more | 2012-05-22 |
| 8173458 | Method for forming quantum well structure and method for manufacturing semiconductor light emitting element | Yohei Enya, Masaki Ueno, Fumitake Nakanishi | 2012-05-08 |
| 8174035 | Nitride-based semiconductor light emitting device | Takamichi Sumitomo, Masaki Ueno, Takashi Kyono, Yohei Enya | 2012-05-08 |
| 8175129 | Group-III nitride semiconductor laser device, method of fabricating group-III nitride semiconductor laser device, and method of estimating damage from formation of scribe groove | Shimpei Takagi, Takatoshi Ikegami, Masaki Ueno, Koji Katayama | 2012-05-08 |
| 8148716 | Group III nitride semiconductor optical device, epitaxial substrate, and method of making group III nitride semiconductor light-emitting device | Masaki Ueno, Yohei Enya, Takashi Kyono | 2012-04-03 |
| 8139619 | Group-III nitride semiconductor laser device, and method for fabricating group-III nitride semiconductor laser device | Shimpei Takagi, Koji Katayama, Masaki Ueno, Takatoshi Ikegami | 2012-03-20 |
| 8107507 | Group III nitride semiconductor element and epitaxial wafer | Yohei Enya, Masaki Ueno, Fumitake Nakanishi | 2012-01-31 |
| 8105857 | Method of fabricating group-III nitride semiconductor laser device | Shimpei Takagi, Koji Katayama, Masaki Ueno, Takatoshi Ikegami | 2012-01-31 |
| 8076167 | Group-III nitride semiconductor laser device, and method for fabricating group-III nitride semiconductor laser device | Shimpei Takagi, Koji Katayama, Masaki Ueno, Takatoshi Ikegami | 2011-12-13 |
| 8071405 | Group-III nitride semiconductor laser device, and method for fabricating group-III nitride semiconductor laser device | Shimpei Takagi, Koji Katayama, Masaki Ueno, Takatoshi Ikegami | 2011-12-06 |
| 8067257 | Nitride based semiconductor optical device, epitaxial wafer for nitride based semiconductor optical device, and method of fabricating semiconductor light-emitting device | Masaki Ueno, Yohei Enya, Takashi Kyono, Katsushi Akita, Takamichi Sumitomo +1 more | 2011-11-29 |
| 8053806 | Group III nitride semiconductor device and epitaxial substrate | Takashi Kyono, Yohei Enya, Katsushi Akita, Masaki Ueno, Takamichi Sumitomo +1 more | 2011-11-08 |
| 8048702 | Method of fabricating nitride-based semiconductor optical device | Yohei Enya, Masaki Ueno, Takashi Kyono, Katsushi Akita | 2011-11-01 |
| 8018029 | Gallium nitride-based epitaxial wafer and method of fabricating epitaxial wafer | Masaki Ueno, Takao Nakamura | 2011-09-13 |
| 7949026 | Group III nitride semiconductor laser | Takashi Kyono, Katsushi Akita | 2011-05-24 |
| 7939354 | Method of fabricating nitride semiconductor laser | Takashi Kyono, Katsushi Akita | 2011-05-10 |
| 7933303 | Group-III nitride semiconductor laser device, and method for fabricating group-III nitride semiconductor laser device | Yohei Enya, Takashi Kyono, Masahiro Adachi, Katsushi Akita, Masaki Ueno +5 more | 2011-04-26 |