Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4929571 | Method of making a buried crescent laser with air gap insulator | Etsuji Omura | 1990-05-29 |
| 4847845 | Semiconductor laser with an interposed gap | Etsuji Omura | 1989-07-11 |
| 4809289 | Semiconductor laser device | Katsuhiko Goto | 1989-02-28 |
| 4758535 | Method for producing semiconductor laser | Yasushi Sakakibara, Yasuo Nakajima | 1988-07-19 |
| 4728625 | Method of fabricating buried crescent semiconductor laser device by removing a surface portion of substrate around a groove therein | Yasushi Sakakibara | 1988-03-01 |
| 4723251 | Semiconductor laser having an active layer buried in a groove | Yasushi Sakakibara, Etsuji Oomura, Hideyo Higuchi | 1988-02-02 |
| 4561096 | Buried semiconductor laser avoiding thyristor action | Ryoichi Hirano, Hideyo Higuchi, Etsuji Oomura, Yasushi Sakakibara, Wataru Susaki | 1985-12-24 |
| 4504328 | Liquid phase epitaxial growth technique | Ryoichi Hirano, Wataru Susaki, Toshio Tanaka | 1985-03-12 |
| 4277759 | Semiconductor laser device | Toshio Tanaka, Saburo Takamiya, Wataru Susaki | 1981-07-07 |
| 4183038 | Semiconductor laser device | Wataru Susaki, Hirofumi Kan | 1980-01-08 |