Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281250 | Powder material for rare earth-iron-boron based permanent magnets | Atsushi Hamamura, Katsumi Okayama, Yuji Kaneko, Kaname Takeya, Shuji Okada | 1994-01-25 |
| 4915737 | Alloy target for manufacturing a magneto-optical recording medium | Toshio Morimoto, Keizo Kazama, Yasuhiro Tsugita, Shinobu Endo | 1990-04-10 |
| 4681623 | Process for producing alloy powder containing rare earth metals | Yasuhiro Tsugita, Tamaki Takechi, Syuji Okada | 1987-07-21 |