Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5408488 | Semiconductor laser device | Haruki Kurihara | 1995-04-18 |
| 4959839 | Rib waveguide type semiconductor laser | — | 1990-09-25 |
| 4949349 | Double-heterostructure semiconductor with mesa stripe waveguide | Yasuo Ohba, Niyoko Watanabe, Hideto Sugawara, Masayuki Ishikawa, Yukio Watanabe | 1990-08-14 |
| 4910743 | Semiconductor laser with mesa stripe waveguide structure | Yasuo Ohba, Masayuki Ishikawa, Yukio Watanabe, Hideto Sugawara | 1990-03-20 |
| 4855250 | Method of manufacturing a semiconductor laser with autodoping control | Yasuhiko Tsuburai | 1989-08-08 |
| 4835117 | Manufacturing method for semiconductor laser with mesa stripe | Yasuo Ohba, Masayuki Ishikawa, Yukio Watanabe, Hideto Sugawara | 1989-05-30 |
| 4809287 | Double-heterostructure semiconductor with mesa stripe waveguide | Yasuo Ohba, Miyoko Watanabe, Hideto Sugawara, Masayuki Ishikawa, Yukio Watanabe | 1989-02-28 |
| 4799228 | Transverse-mode stabilized semiconductor laser diode with slab-coupled waveguide | Hiroko Nagasaka, Gen-ichi Hatakoshi, Naohiro Shimada, Masaki Okajima, Yoshio Iizuka +3 more | 1989-01-17 |
| 4792958 | Semiconductor laser with mesa stripe waveguide structure | Yasuo Ohba, Masayuki Ishikawa, Yukio Watanabe, Hideto Sugawara | 1988-12-20 |