Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856631 | Permanent magnet coupling torque limiter | Ryosuke Okita, Masaya Yamada | 1989-08-15 |
KO
Kiyohide Okamoto
Overall (1989): #87,020 of 140,708Top 65%
1
Patents 1989