Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5160152 | Electrostatic chuck | Makoto Toraguchi, Genichi Katagiri | 1992-11-03 |
| 4758535 | Method for producing semiconductor laser | Yasuo Nakajima, Hirofumi Namizaki | 1988-07-19 |
| 4728625 | Method of fabricating buried crescent semiconductor laser device by removing a surface portion of substrate around a groove therein | Hirofumi Namizaki | 1988-03-01 |
| 4723251 | Semiconductor laser having an active layer buried in a groove | Hirofumi Namizaki, Etsuji Oomura, Hideyo Higuchi | 1988-02-02 |
| 4561096 | Buried semiconductor laser avoiding thyristor action | Hirofumi Namizaki, Ryoichi Hirano, Hideyo Higuchi, Etsuji Oomura, Wataru Susaki | 1985-12-24 |