Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822934 | Optical disc apparatus for finding a tracking error for an optical disk | Yoichi Saito, Kazuo Momoo, Kenji Nagashima | 2004-11-23 |
| 6819647 | Optical information processor and optical element | Youichi Saitoh, Junichi Asada, Yuichi Takahashi, Kenji Nagashima, Kazuo Momoo +1 more | 2004-11-16 |
| 6791681 | Apparatus and method for determining existence range of foreign substance | Yasuhiro Gotoh | 2004-09-14 |
| 6728192 | Tracking error signal detection system for optical recording medium | Shin-ichi Kadowaki, Shinichi Tanaka, Kousei Sano, Seiji Nishino | 2004-04-27 |
| 6704254 | Optical disk device, control method of optical system, medium, and information aggregate | Kazuo Momoo, Junji Nagaoka | 2004-03-09 |
| 6674709 | Optical head apparatus | Junichi Asada, Yuichi Takahashi, Kenji Nagashima, Hiroaki Matsumiya, Youichi Saitoh +1 more | 2004-01-06 |