Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851056 | Process for producing a semi-processed non-oriented electrical steel sheet having a low watt loss and a high magnetic flux density | Yoshiaki Shimoyama, Takeshi Kubota | 1989-07-25 |
| 4666534 | Non-oriented electrical steel sheet having a low watt loss and a high magnetic flux density and a process for producing the same | Yoshiaki Shimoyama, Takeshi Kubota | 1987-05-19 |
| 4661174 | Non-oriented electrical steel sheet having a low watt loss and a high magnetic flux density and a process for producing the same | Yoshiaki Shimoyama, Takeshi Kubota | 1987-04-28 |
| 4560423 | Process for producing a non-oriented electromagnetic steel sheet having excellent magnetic properties | Yoshiaki Shimoyama, Yoshitaka Hiromae | 1985-12-24 |