Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848506 | Drive power transmission device | Kazuhiko Shimada, Katsuhiko Masuda, Kazunori Shibuya | 1989-07-18 |
TH
Tetsurou Hamada
Overall (1989): #51,778 of 140,708Top 40%
1
Patents 1989