Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836868 | Permanent magnet and method of producing same | Kohichi Yajima, Osamu Kohmoto | 1989-06-06 |
TY
Tetsuhito Yoneyama
Overall (1989): #51,219 of 140,708Top 40%
1
Patents 1989