Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7315502 | Light integration unit, optical pickup device using the unit, and optical disk device | Keiji Sakai, Takahiro Miyake, Tetsuo Ueyama, Renzaburo Miki, Noboru Fujita +1 more | 2008-01-01 |