Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658668 | Electromagnetic steel sheet and a core made therefrom | Hideo Kobayashi, Yuka Komori | 1997-08-19 |
| 5624749 | Electromagnetic steel sheet having an electrically insulating coating with superior weldability | Hideo Kobayashi, Yasuo Yokoyama, Yuka Komori, Taizo Mohri | 1997-04-29 |
| 4318754 | Surface treatment method for tin-free steel | Shunichi Tsugawa, Hajima Kimura | 1982-03-09 |