Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695413 | Solid golf ball | Hisashi Yamagishi, Hiroto Sasaki, Hideo Watanabe, Hiroshi Higuchi | 1997-12-09 |
| 5688595 | Multi-piece solid golf ball | Hisashi Yamagishi, Hiroshi Higuchi, Junji Hayashi | 1997-11-18 |
| 5605967 | Golf ball | Yoshinori Egashira, Hideo Watanabe | 1997-02-25 |