Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863532 | Grain-oriented electromagnetic steel sheet | Toshiya Wada, Shozaburo Nakashima | 1989-09-05 |
| 4806176 | Process for producing a grain-oriented electromagnetic steel sheet having a high magnetic flux density | Jiro Harase, Toshiya Wada, Shozaburo Nakashima | 1989-02-21 |