Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6704465 | Image processing apparatus and its processing method, storage medium, and image file format | Taku Yamagami | 2004-03-09 |
| 5539720 | Method and apparatus for driving light source by stored current value and for processing information | — | 1996-07-23 |
| 5289451 | Optical information recording/reproduction apparatus including means for detecting the type of recording medium | Takaaki Ashinuma, Makoto Shiho, Yasuo Suzuki, Takehiko Shibata, Masaharu Tsukada +2 more | 1994-02-22 |
| 5099468 | Optical information processing apparatus having offset adjusting circuit which can be exchanged together with optical head | Yasuo Suzuki | 1992-03-24 |
| 4989194 | Optical information processing method of driving auto-focusing and/or auto-tracking means in accordance with a stored servo signal when irradiation of a record medium with light beam is stopped, and apparatus therefor | — | 1991-01-29 |
| 4899291 | Image processing system | Masaharu Tsukada, Takaaki Ashinuma | 1990-02-06 |
| 4853917 | Optical tracking apparatus with photodetector disposed outside part of the effective diameter of the lens system | Osamu Koyama, Kazuo Uzuki, Makoto Shiho | 1989-08-01 |
| 4783590 | Error signal producing device having improved linearity | — | 1988-11-08 |
| 4700335 | Method and apparatus for recording a continuous spiral information track with different track pitches | — | 1987-10-13 |
| 4695992 | Optical information recording-reproducing apparatus in which the relative position of a primary beam and secondary beams on recording medium is varied during recording and reproduction of information | — | 1987-09-22 |
| 4647982 | Image display apparatus capable of starting display of a new image in response to designation thereof prior to completion of display of a previously designated image | — | 1987-03-03 |
| 4641157 | Image display device | — | 1987-02-03 |