Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143863 | Method of manufacturing semiconductor laser | Kiyoshi Ohnaka | 1992-09-01 |
| 5099357 | Optical sensor | Toshiya Yokogawa | 1992-03-24 |
| 5092937 | Process for treating semiconductors | Keiichi Kagawa, Yuichi Hirofuji | 1992-03-03 |
| 5029175 | Semiconductor laser | Kiyoshi Ohnaka | 1991-07-02 |
| 4885260 | Method of laser enhanced vapor phase growth for compound semiconductor | Yuzaburo Ban, Masaya Manno, Minoru Kubo, Mototsugu Morisaki | 1989-12-05 |
| 4866489 | Semiconductor device | Toshiya Yokogawa | 1989-09-12 |
| 4843031 | Method of fabricating compound semiconductor laser using selective irradiation | Yuzaburo Ban, Hiraaki Tsujii, Youichi Sasai, Hiroyuki Serizawa | 1989-06-27 |
| 4755015 | Monolithic integrated semiconductor device of semiconductor laser and optical waveguide | Tomoaki Uno | 1988-07-05 |
| 4747110 | Semiconductor laser device capable of emitting laser beams of different wavelengths | Yasuhito Takahashi, Nobuyasu Hase | 1988-05-24 |
| 4533410 | Process of vapor phase epitaxy of compound semiconductors | Yuzaburoh Ban, Nobuyasu Hase | 1985-08-06 |