Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858928 | Racket frame | Kunimasa Muroi, Tetsuyuki Awano | 1989-08-22 |
YI
Yoshinari Inagaki
Overall (All Time): #3,935,741 of 4,157,543Top 95%
1
Patents All Time