Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8311070 | Nitride semiconductor laser device | Yuhzoh Tsuda, Masataka Ohta | 2012-11-13 |
| 8085826 | Nitride semiconductor laser device | Yuhzoh Tsuda, Masataka Ohta | 2011-12-27 |
| 7558307 | Semiconductor laser device, semiconductor laser device manufacturing method, optical disk apparatus and optical transmission system | Katsuhiko Kishimoto | 2009-07-07 |
| 7197056 | Semiconductor laser device and optical disc drive | Ken Ohbayashi, Kei Yamamoto | 2007-03-27 |
| 6885085 | Semiconductor laser device | Hidenori Kawanishi, Kei Yamamoto, Fumihiro Konushi, Toshihiko Yoshida | 2005-04-26 |
| 6813299 | Semiconductor laser device and optical disk reproducing and recording apparatus | Hidenori Kawanishi, Shuichi Hirukawa | 2004-11-02 |