Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4683176 | Optical magnetic recording member | Kyuzo Nakamura, Yoshifumi Ota | 1987-07-28 |
| 4661420 | Optical magnetic recording member | Kyuzo Nakamura, Yoshifumi Ota, Shin Asari | 1987-04-28 |