Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841498 | Information recording/reproducing apparatus with means for substituting predetermined good sectors for defective ones | Isao Satoh, Yoshihiko Imai, Makoto Ichinose | 1989-06-20 |
| 4789979 | Optical disk exclusively used for reproduction wherein guide grooves located between data managing information and data recording regions have no track address sections | Shigehiko Hiraoka, Makoto Ichinose, Isao Satoh | 1988-12-06 |
| 4768181 | Apparatus for determining defective or non-used sectors of an optical dish | Makoto Ichinose, Isao Satoh, Yuzuru Kuroki | 1988-08-30 |
| 4742507 | Optical information recording and reproducing apparatus having defective-sector marking means | Yuzuru Kuroki, Isao Satoh, Makoto Ichinose | 1988-05-03 |
| 4653051 | Apparatus for detecting and correcting errors on product codes | Isao Satoh, Makoto Ichinose, Yuzuru Kuroki | 1987-03-24 |
| 4630140 | Data recording/reproducing apparatus | Isao Satoh, Makoto Ichinose, Yuzuru Kuroki | 1986-12-16 |