Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888068 | Process for manufacturing permanent magnet | Minoru Endoh, Noriaki Meguro, Shigeho Tanigawa | 1989-12-19 |
| 4837109 | Method of producing neodymium-iron-boron permanent magnet | Kimio Uchida, Akitoshi Hiraki | 1989-06-06 |
| 4814139 | Permanent magnet having good thermal stability and method for manufacturing same | Hiroshi Kogure, Noriaki Meguro, Chitoshi Hagi | 1989-03-21 |