Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5072945 | Golf ball | Yoshikazu Yabuki | 1991-12-17 |
| 5072944 | Three-piece solid golf ball | Akihiro Nakahara, Mikio Yamada, Tadahiro Ebisuno, Takashi Sasaki | 1991-12-17 |
| 5005838 | Golf ball | — | 1991-04-09 |
| 5002281 | Three-piece solid golf ball | Akihiro Nakahara, Mikio Yamada, Tadahiro Ebisuno, Takashi Sasaki | 1991-03-26 |
| 4848766 | Golf ball | Kaname Yamada | 1989-07-18 |
| 4813677 | Golf ball | Kaname Yamada | 1989-03-21 |
| 4729567 | Golf ball | Kaname Yamada | 1988-03-08 |