Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807216 | Recording disc playback apparatus | Ichiro Kawamura, Yoshitaka Fujioka, Noboru Okuno | 1989-02-21 |
| 4802155 | Recording disc playback apparatus | Ichiro Kawamura, Yoshitaka Fujioka, Noboru Okuno | 1989-01-31 |
| 4596009 | Information signal regenerating stylus and manufacturing method thereof | Akira Kagata, Hiromi Hiura | 1986-06-17 |
| 4534136 | Information signal regenerating stylus and manufacturing method thereof | Akira Kagata, Hiromi Hiura | 1985-08-13 |