Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6973109 | Semiconductor laser device having strain buffer layer between compressive-strain quantum well layer and tensile-strain barrier layer | Mitsugu Wada | 2005-12-06 |
| 6901100 | Semiconductor laser device in which near-edge portion of upper cladding layer is insulated for preventing current injection | Akihiro Mukaiyama, Toshiaki Kuniyasu | 2005-05-31 |
| 6888866 | Semiconductor laser device with a current non-injection region near a resonator end face, and fabrication method thereof | Toshiaki Kuniyasu, Fusao Yamanaka | 2005-05-03 |
| 6876688 | Semiconductor laser and method of manufacturing the same | Toshiro Hayakawa, Mitsugu Wada | 2005-04-05 |
| 6873637 | Semiconductor laser element including optical waveguide layers which have gradually varying bandgaps so as to reduce electrical resistance at interfaces | Fujio Akinaga | 2005-03-29 |
| 6856636 | Semiconductor laser device | Tsuyoshi Ohgoh | 2005-02-15 |