Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863531 | Method for producing a grain-oriented electrical steel sheet having a low watt loss | Toshiya Wada, Osamu Tanaka, Makoto Yoshida, Seizun Higuchi, Teruaki Izaki | 1989-09-05 |