Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868065 | Alloy tool of hard metal | Masao Maruyama, Atsushi Seki | 1989-09-19 |
YM
Yoshihiro Minato
Overall (1989): #40,762 of 140,708Top 30%
1
Patents 1989