Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685785 | Wound golf ball | Junji Umezawa | 1997-11-11 |
| 5683311 | Wound golf ball | — | 1997-11-04 |
| 5677054 | Wound golf ball | — | 1997-10-14 |
| 5674137 | Wound golf ball | Takashi Maruko, Junji Hayashi | 1997-10-07 |
| 5655977 | Wound golf ball | Takashi Maruko, Junji Hayashi | 1997-08-12 |
| 5628699 | Wound golf ball | Takashi Maruko, Junji Hayashi | 1997-05-13 |