Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7365902 | Optical amplifier and optical communication system | — | 2008-04-29 |
| 5867306 | Optical amplifier | — | 1999-02-02 |
| 5550855 | Optical modulator | Toshitaka Aoyagi, Hitoshi Watanabe, Yasunori Miyazaki | 1996-08-27 |
| 5161166 | Semiconductor laser | Akihiro Shima | 1992-11-03 |
| 5149670 | Method for producing semiconductor light emitting device | — | 1992-09-22 |
| 5089437 | Semiconductor laser manufacturing method | Akihiro Shima | 1992-02-18 |
| 5020068 | Semiconductor laser device | — | 1991-05-28 |
| 4815082 | Semiconductor laser device | Takashi Murakami, Wataru Susaki | 1989-03-21 |
| 4768200 | Internal current confinement type semiconductor light emission device | — | 1988-08-30 |
| 4757509 | Semiconductor laser apparatus | Wataru Susaki | 1988-07-12 |