Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811947 | Vibration absorber for a racket | Masanori Takatsuka | 1989-03-14 |
| 4575447 | Method for producing a wood-type golf club head | — | 1986-03-11 |
YH
Yoshinori Hariguchi
Nippon Gakki Seizo: 1 patents #163 of 332Top 50%
Overall (All Time): #2,329,180 of 4,157,543Top 60%
2
Patents All Time