Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840842 | Abrasive tape | Masaaki Fujiyama, Masami Suzuki, Yasuyuki Yamada | 1989-06-20 |
| 4822672 | Abasive tape | Eiichi Tadokoro, Takahito Miyoshi | 1989-04-18 |
NY
Nobutaka Yamaguchi
Overall (1989): #19,062 of 140,708Top 15%
2
Patents 1989