Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875959 | Tire forming method and apparatus | — | 1989-10-24 |
| 4846907 | Method of producing tire belts | Yasutoshi Aoki | 1989-07-11 |
YK
Yuzo Kumagai
Overall (1989): #12,129 of 140,708Top 9%
2
Patents 1989