Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819647 | Optical information processor and optical element | Youichi Saitoh, Junichi Asada, Yuichi Takahashi, Seiji Nishiwaki, Kenji Nagashima +1 more | 2004-11-16 |
| 6704254 | Optical disk device, control method of optical system, medium, and information aggregate | Seiji Nishiwaki, Kazuo Momoo | 2004-03-09 |