Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6400742 | Semiconductor laser and method of fabricating same | Genichi Hatakoshi, John Rennie, Masayuki Ishikawa, Shinya Nunoue, Mariko Suzuki | 2002-06-04 |
| 6252894 | Semiconductor laser using gallium nitride series compound semiconductor | Katsunobu Sasanuma, Shinji Saito, Genichi Hatakoshi, Kazuhiko Itaya, Risa Sugiura +4 more | 2001-06-26 |
| 6185238 | Nitride compound semiconductor laser and its manufacturing method | Genichi Hatakoshi, Shinya Nunoue, Masayuki Ishikawa | 2001-02-06 |
| 6121634 | Nitride semiconductor light emitting device and its manufacturing method | Shinji Saito, Genichi Hatakoshi, Hidetoshi Fujimoto, Norio Iizuka, Chiharu Nozaki +2 more | 2000-09-19 |
| 6067309 | Compound semiconductor light-emitting device of gallium nitride series | Kazuhiko Itaya, Genichi Hatakoshi | 2000-05-23 |
| 6060335 | Semiconductor light emitting device and method of manufacturing the same | John Rennie, Genichi Hatakoshi | 2000-05-09 |
| 6031858 | Semiconductor laser and method of fabricating same | Genichi Hatakoshi, John Rennie, Masayuki Ishikawa, Shinya Nunoue, Mariko Suzuki | 2000-02-29 |
| 6015979 | Nitride-based semiconductor element and method for manufacturing the same | Lisa Sugiura, Masayuki Ishikawa, Shinya Nunoue, Masahiro Yamamoto | 2000-01-18 |
| 6005263 | Light emitter with lowered heterojunction interface barrier | Shinji Saito, Yukie Nishikawa, Masayuki Ishikawa, Peter James Parbrook | 1999-12-21 |
| 5972730 | Nitride based compound semiconductor light emitting device and method for producing the same | Shinji Saito, John Rennie, Genichi Hatakoshi | 1999-10-26 |
| 5821555 | Semicoductor device having a hetero interface with a lowered barrier | Shinji Saito, Yukie Nishikawa, Masayuki Ishikawa, Peter James Parbrook | 1998-10-13 |
| 5780873 | Semiconductor device capable of easily forming cavity and its manufacturing method | Kazuhiko Itaya, Masahiro Yamamoto, Hidetoshi Fujimoto, Genichi Hatakoshi, Hideto Sugawara +3 more | 1998-07-14 |
| 5696389 | Light-emitting semiconductor device | Masayuki Ishikawa, Hideto Sugawara, Yukie Nishikawa, Shinji Saito, Peter James Parbrook +5 more | 1997-12-09 |
| 5585649 | Compound semiconductor devices and methods of making compound semiconductor devices | Masayuki Ishikawa, Yukie Nishikawa, Shinji Saito, Peter James Parbrook, Genichi Hatakoshi | 1996-12-17 |
| 5488233 | Semiconductor light-emitting device with compound semiconductor layer | Masayuki Ishikawa, Yukie Nishikawa, Shinji Saito, Peter James Parbrook, Koichi Nitta +1 more | 1996-01-30 |
| 5347526 | Wavelength-tunable semiconductor laser | Nobuo Suzuki, Masaki Tohyama | 1994-09-13 |
| 5274649 | Wavelength-tunable distributed-feedback semiconductor laser device | Yuzo Hirayama | 1993-12-28 |
| 5253264 | Optical semiconductor device | Nobuo Suzuki, Yuzo Hirayama | 1993-10-12 |