Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8372940 | Golf ball | Ryo Mashita, Kazuyoshi Shiga, Takashi Sasaki, Mikio Yamada | 2013-02-12 |
| 6777524 | Polyether polyurethane | Atsushi Shimizu, Kiyoo Kato, Yoshiyuki Asahina | 2004-08-17 |