Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362538 | Optical recording medium | Gentaro Ohbayashi, Kazuo Kakuo, Kusato Hirota | 1994-11-08 |
| 5124232 | Optical recording medium | Toshiharu Nakanishi, Gentaro Ohbayashi, Osamu Watanabe | 1992-06-23 |