Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5325506 | Method of changing the track and recording data | Mamoru Tohchi, Akira Kurano, Hisaharu Takeuchi, Ikuo Kawaguchi | 1994-06-28 |
| 5179684 | Method of changing the track and recording data | Mamoru Tohchi, Akira Kurano, Hisaharu Takeuchi, Ikuo Kawaguchi | 1993-01-12 |