Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6174609 | Rare earth-based permanent magnet of high corrosion resistance | Takehisa Minowa | 2001-01-16 |
| 5840375 | Method for the preparation of a highly corrosion resistant rare earth based permanent magnet | Takehisa Minowa, Masao Yoshikawa | 1998-11-24 |