Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915738 | Alloy target for manufacturing a magneto-optical recording medium | Toshio Morimoto | 1990-04-10 |
| 4865660 | Rare-earth element/cobalt type magnet powder for resin magnets | Koichi Oka, Takehiko Satoh | 1989-09-12 |
| 4689073 | Method for production of rare-earth element/cobalt type magnetic powder for resin magnet | Koichi Oka, Takehiko Sato | 1987-08-25 |