Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647886 | Magnetic powder, permanent magnet produced therefrom and process for producing them | Atsunori Kitazawa, Koji Akioka | 1997-07-15 |
| 5597425 | Rare earth cast alloy permanent magnets and methods of preparation | Koji Akioka, Osamu Kobayashi, Tatsuya Shimoda, Ryuichi Ozaki | 1997-01-28 |