Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028279 | Grain oriented electrical steel sheet having improved glass film properties and low watt loss and process for producing same | Osamu Tanaka, Toshihiko Takata, Kunihide Takashima, Hiromichi Yasumoto | 1991-07-02 |
| 4960652 | Grain-oriented electrical steel sheet having a low watt loss | Osamu Tanaka, Takatoshi Egawa, Makato Yoshida, Seizun Higuchi, Teruaki Izaki | 1990-10-02 |
| 4897131 | Grain-oriented electrical steel sheet having improved glass film properties and low watt loss | Osamu Tanaka, Toshihiko Takata, Kunihide Takashima, Hiromichi Yasumoto | 1990-01-30 |
| 4863531 | Method for producing a grain-oriented electrical steel sheet having a low watt loss | Osamu Tanaka, Takatoshi Egawa, Makoto Yoshida, Seizun Higuchi, Teruaki Izaki | 1989-09-05 |
| 4863532 | Grain-oriented electromagnetic steel sheet | Katsuro Kuroki, Shozaburo Nakashima | 1989-09-05 |
| 4806176 | Process for producing a grain-oriented electromagnetic steel sheet having a high magnetic flux density | Jiro Harase, Katsuro Kuroki, Shozaburo Nakashima | 1989-02-21 |
| 4753692 | Grain-oriented electromagnetic steel sheet and process for producing the same | Katsuro Kuroki, Shozaburo Nakashima | 1988-06-28 |
| 4288492 | Insulating coating compositions applied on electrical steel sheets | Yoshitaka Hiromae, Kazuo Nakamura, Hirotada Katoh | 1981-09-08 |