Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759006 | Abnormal track skipping detection and control arrangement | Kenji Koishi, Tomio Yoshida, Isao Satoh, Shunji Ohara | 1988-07-19 |
| 4742507 | Optical information recording and reproducing apparatus having defective-sector marking means | Isao Satoh, Makoto Ichinose, Tatuo Sugimura | 1988-05-03 |
| 4653051 | Apparatus for detecting and correcting errors on product codes | Tatuo Sugimura, Isao Satoh, Makoto Ichinose | 1987-03-24 |
| 4630140 | Data recording/reproducing apparatus | Tatuo Sugimura, Isao Satoh, Makoto Ichinose | 1986-12-16 |
| 4566088 | Optical and reversible recording and reproducing apparatus | Tomio Yoshida, Isao Satoh, Shunji Ohara, Kenji Koishi | 1986-01-21 |