Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5390208 | Strained quantum well type semiconductor laser device | Akihiko Kasukawa | 1995-02-14 |
| 5388116 | Semiconductor laser device | Michio Ohkubo | 1995-02-07 |
| 5379717 | Method of growing single crystal of compound semiconductors | Seikoh Yoshida, Shoichi Ozawa | 1995-01-10 |
| 5363392 | Strained quantum well type semiconductor laser device | Akihiko Kasukawa | 1994-11-08 |
| 5342475 | Method of growing single crystal of compound semiconductor | Seikoh Yoshida | 1994-08-30 |
| 5325385 | Buried-type semiconductor laser device | Akihiko Kasukawa | 1994-06-28 |
| 4904336 | Method of manufacturing a single crystal of compound semiconductor and apparatus for the same | Shoichi Ozawa, Katsumi Wagatsuma | 1990-02-27 |
| 4853066 | Method for growing compound semiconductor crystal | Seikoh Yoshida, Yuzo Kashiwayanagi | 1989-08-01 |