Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841531 | Semiconductor laser device | Masahiko Kondow, Shin Satoh, Shigekazu Minagawa, Takashi Kajimura | 1989-06-20 |
| 4819036 | Semiconductor device | Takao Kuroda, Akiyoshi Watanabe, Shinji Tsuji, Hiroyoshi Matsumura | 1989-04-04 |