Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4554651 | Magneto-optical recording medium and method for preventing the erasing of the information recorded on the magneto-optical recording medium | Mikio Kanai, Hideki Hatano, Norikiyo Tajiri, Sakashi Otaki | 1985-11-19 |