Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5313452 | Optical recording disk | Toshiki Aoi | 1994-05-17 |
| 4903878 | Method for manufacturing a tape guide cylinder of small thickness | Yoshitaka Kawamura | 1990-02-27 |
| 4754908 | Process for preparing a tape guide cylinder | Masamitsu Tanaka, Koji Kondo | 1988-07-05 |
| 4739345 | Optical recording disk | Kenryo Namba, Shigeru Asami, Toshiki Aoi, Kazuo Takahashi, Noriko Takeda +1 more | 1988-04-19 |