Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560423 | Process for producing a non-oriented electromagnetic steel sheet having excellent magnetic properties | Yoshiaki Shimoyama, Kunisuke Miyoshi | 1985-12-24 |
| 4543134 | Process for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film | Osamu Tanaka, Shozaburo Nakashima, Takashi Nagano, Tomoji Kumano | 1985-09-24 |
| 4288492 | Insulating coating compositions applied on electrical steel sheets | Kazuo Nakamura, Toshiya Wada, Hirotada Katoh | 1981-09-08 |
| 4287006 | Annealing separator for grain oriented silicon steel strips | Kazuo Nakamura, Hajime Nitto | 1981-09-01 |