Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5805542 | Optical disk apparatus with a groove/pit area discrimination circuit | Yasuhito Soma | 1998-09-08 |
| 5673429 | Database display system using list management of display formats | Masamitsu Minatogawa, Maki Sakuta | 1997-09-30 |
| 5347502 | Focusing control system for use in an information recording and reproducing apparatus | Shinichi Yamada | 1994-09-13 |
| 5343454 | Tracking control apparatus for correcting tracking error signal according to approximate equation of a function of track address | Katsuya Watanabe, Hiroyuki Yamaguchi, Yasuaki Edahiro, Mitsuro Moriya | 1994-08-30 |
| 5331615 | Tracking control apparatus for an optical disk device | Shinichi Yamada, Mitsuro Moriya, Hiroyuki Yamaguchi | 1994-07-19 |
| 5257250 | Tracking-control target-position adjustment method | Mitsuro Moriya, Hiroyuki Yamaguchi, Shinichi Yamada, Katsuya Watanabe | 1993-10-26 |
| 5191566 | Velocity detection method and apparatus therefor | Hiroyuki Yamaguchi, Mitsuro Moriya, Shinichi Yamada | 1993-03-02 |
| 5140576 | Method of and apparatus for setting focusing control into operation | Shinichi Yamada, Mitsuro Moriya, Hiroyuki Yamaguchi | 1992-08-18 |
| 5090003 | Method and apparatus for adjusting target position of focusing of light beam | Katsuya Watanabe, Mitsuro Moriya, Shinichi Yamada | 1992-02-18 |
| 5048001 | Load correction method for an information retrieval apparatus | Mitsuro Moriya, Hiroyuki Yamaguchi, Shinichi Yamada, Katsuya Watanabe | 1991-09-10 |