Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832980 | Magneto-optical recording medium and manufacturing thereof | Katsutarou Ichihara, Nobuaki Yasuda, Senji Shimanuki | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832980 | Magneto-optical recording medium and manufacturing thereof | Katsutarou Ichihara, Nobuaki Yasuda, Senji Shimanuki | 1989-05-23 |