Issued Patents All Time
Showing 126–135 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564931 | Optical recording and reproducing head | Shunji Ohara, Tomio Yoshida, Kenji Koishi | 1986-01-14 |
| 4546462 | Optical data recording and reproducing apparatus | Kenji Koishi, Tomio Yoshida, Shunji Ohara | 1985-10-08 |
| 4545044 | Method and apparatus for optically recording and reproducing information | Tomio Yoshida, Shunji Ohara, Kenji Koishi | 1985-10-01 |
| 4535439 | Optical having index mark and sector mark | Tomio Yoshida, Shunji Ohara, Kenji Koishi | 1985-08-13 |
| 4523304 | Optical data recording and reproducing apparatus | Tomio Yoshida, Shunji Harigae, Kenji Koishi | 1985-06-11 |
| 4509156 | Semiconductor laser driving system | Shunji Ohara, Tomio Yoshida, Kenji Koishi | 1985-04-02 |
| 4484319 | Apparatus for locating a track on disc-like optical information carriers | Kenji Koishi, Tomio Yoshida, Shunji Harigae | 1984-11-20 |
| 4426693 | Light source intensity control in an optical recording and reproducing apparatus | Tomio Yoshida, Shunji Harigae, Kenji Koishi | 1984-01-17 |
| 4361394 | Method and apparatus for scanning light beam | Yukio Sakai, Fumio Yamazaki | 1982-11-30 |
| 4224480 | Holographic playback system using a charge storage sensor and binary decoding | Makoto Kato | 1980-09-23 |