Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836868 | Permanent magnet and method of producing same | Osamu Kohmoto, Tetsuhito Yoneyama | 1989-06-06 |
KY
Kohichi Yajima
Overall (1989): #85,817 of 140,708Top 65%
1
Patents 1989