Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4341648 | Method for manufacturing magnetic powder for high density magnetic recording | Osamu Kubo, Tutomu Nomura, Koichiro Inomata | 1982-07-27 |
| 4321155 | Piezoelectric oxide material | Youhachi Yamashita, Katsunori Yokoyama, Seiichi Yoshida | 1982-03-23 |