Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6795466 | Distributed feedback type semiconductor laser device | Kiyoshi Takei, Nong Chen, Yoshiaki Watanabe | 2004-09-21 |
| 6748001 | Semiconductor laser device providing laser light of two wavelengths and method of fabricating the same | Mitsuru Nishitsuka, Hiroyuki Ota | 2004-06-08 |
| 6714571 | Ridge type semiconductor laser of distributed feedback | Yoshiaki Watanabe, Nong Chen, Kiyoshi Takei | 2004-03-30 |
| 6711192 | Nitride semiconductor laser and method of fabricating the same | Hiroyuki Ota, Toshiyuki Tanaka | 2004-03-23 |