Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6632148 | Golf ball | Junji Hayashi, Hisashi Yamagishi | 2003-10-14 |
| 6602152 | Golf ball | Hisashi Yamagishi, Junji Hayashi | 2003-08-05 |
| 6592471 | Multi-piece solid golf ball | Hideo Watanabe, Akira Kawata | 2003-07-15 |
| 6561925 | Multi-piece solid golf ball | Hideo Watanabe, Akira Kawata | 2003-05-13 |