Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6885085 | Semiconductor laser device | Hidenori Kawanishi, Kei Yamamoto, Yoshie Fujishiro, Toshihiko Yoshida | 2005-04-26 |
| 6876002 | Semiconductor laser device and method for manufacturing the same | Mitsuhiro Matsumoto, Shinichi Kawato | 2005-04-05 |
| 6798808 | Semiconductor laser device and method of manufacturing same | Nobuhiro Ohkubo, Shinichi Kawato | 2004-09-28 |
| 6181723 | Semiconductor light emitting device with both carbon and group II element atoms as p-type dopants and method for producing the same | Nobuhiro Okubo, Masaya Ishida, Yoshiro Akagi, Masanori Watanabe | 2001-01-30 |
| 5838854 | Integrated optical control element and a method for fabricating the same and optical integrated circuit element and optical integrated circuit device using the same | Mototaka Taneya, Hidenori Kawanishi, Tatsuya Morioka, Atsushi Shimonaka | 1998-11-17 |
| 5815615 | Integrated optical control element and a method for fabricating the same and optical integrated circuit element and optical integrated circuit device using the same | Mototaka Taneya, Hidenori Kawanishi, Tatsuya Morioka, Atsushi Shimonaka | 1998-09-29 |
| 5657337 | Semiconductor laser device having a resonator of a particular length for reducing threshold current density | Toshiyuki Okumura, Tatsuya Morioka, Narihito Matsumoto | 1997-08-12 |
| 5506856 | Semiconductor laser device having a resonator of particular length for reduced threshold current density | Toshiyuki Okumura, Tatsuya Morioka, Narihito Matsumoto | 1996-04-09 |
| 5375135 | Semiconductor laser device | Toshiyuki Okumura, Tatsuya Morioka, Narihito Matsumoto | 1994-12-20 |
| 5351258 | Semiconductor laser device | Toshiyuki Okumura, Tatsuya Morioka, Narihito Matsumoto | 1994-09-27 |
| 5335241 | Buried stripe type semiconductor laser device | Toshiyuki Okumura, Kazuhiko Inoguchi, Haruhisa Takiguchi | 1994-08-02 |
| 5182758 | Periodic gain-type semiconductor laser device | Mototaka Taneya, Toshiyuki Okumura, Haruhisa Takiguchi | 1993-01-26 |
| 5070510 | Semiconductor laser device | Hiroshi Nakatu, Kazuhiko Inoguchi, Toshiyuki Okumura, Akinori Seki, Haruhisa Takiguchi +3 more | 1991-12-03 |
| 5011550 | Laminated structure of compound semiconductors | Akinori Seki, Jun Kudo, Masayoshi Koba | 1991-04-30 |