Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868692 | Tracking error signal forming circuit | Hiromi Nakase, Kanji Kubo, Hiroshi Taniguchi | 1989-09-19 |
| 4816930 | Tracking control for a tape using pilot signals | Kanji Kubo, Naoshi Usuki, Hiroshi Taniguchi | 1989-03-28 |