Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7888154 | Optical semiconductor device and manufacturing method therefor | Hideki Hirayama, Norihiko Kamata | 2011-02-15 |
| 7811847 | Optical semiconductor device and method for manufacturing the same | Hideki Hirayama, Norihiko Kamata | 2010-10-12 |