Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348199 | Buffer device for a roller chain and sprocket coupling | Yoshinori Kawashima, Toshinori Hanai | 1982-09-07 |
KO
Koichiro Oonuma
Overall (All Time): #4,075,338 of 4,157,543Top 100%
1
Patents All Time