Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872175 | Semiconductor laser device having a lens-like refractive index distribution within the stripe | Takashi Kajimura | 1989-10-03 |
| 4821275 | Laser diode | Naoki Chinone, Kazuhisa Uomi, Yuichi Ono, Takashi Kajimura | 1989-04-11 |