Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517032 | Method of producing grain-oriented silicon steel sheets having excellent magnetic properties | Katsuo Iwamoto, Yoshinori Kobayashi, Isao Matoba | 1985-05-14 |
| 4439252 | Method of producing grain-oriented silicon steel sheets having excellent magnetic properties | Katsuo Iwamoto, Yoshinori Kobayashi, Yoshiaki Iida, Isao Matoba | 1984-03-27 |
| 4212689 | Method for producing grain-oriented electrical steel sheets or strips having a very high magnetic induction | Yoh Shimizu, Yoshiaki Iida, Hiromi Mitsunori, Isao Matoba | 1980-07-15 |