Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7595016 | Method for manufacturing golf ball | Koichi Fujisawa | 2009-09-29 |
| 6790148 | Multi-piece solid golf ball and method of making the same | Kazunari Yoshida, Keiji Ohama, Keiji Moriyama, Takumi Nishino | 2004-09-14 |
| RE38589 | Three-piece solid golf ball | Yoshimasa Koizumi | 2004-09-14 |
| 6608127 | Golf ball | Akira Kato, Masatoshi Yokota, Satoshi Iwami | 2003-08-19 |
| 6575850 | Golf ball | Satoshi Iwami, Akira Kato, Masatoshi Yokota | 2003-06-10 |
| 6561923 | Colored golf ball | Keiji Ohama | 2003-05-13 |
| 6525124 | Golf ball | Kazushige Sugimoto, Tsutomu Hirau, Yoshimasa Koizumi | 2003-02-25 |
| 5981649 | Rubber composition for grips of articles containing EPDM and grip made thereof | Akihiko Hamada | 1999-11-09 |
| 5957784 | Multi-piece solid golf ball | Takeshi Asakura, Keiji Moriyama | 1999-09-28 |
| 5780169 | Golf ball | Kuniyasu Horiuchi, Yoshikazu Yabuki, Yoshimasa Koizumi, Kiyoto Maruoka | 1998-07-14 |
| 5711723 | Three-piece solid golf ball | Kazushige Sugimoto, Keiji Moriyama, Yoshimasa Koizumi, Kuniyasu Horiuchi | 1998-01-27 |
| 5697856 | Solid golf ball and process for producing the same | Keiji Moriyama, Kazushige Sugimoto, Satoshi Iwami, Masatoshi Yokota | 1997-12-16 |
| 5607366 | Two-piece golf ball | Masatoshi Yokota, Kuniyasu Horiuchi, Mikio Yamada | 1997-03-04 |
| 5601502 | Three-piece solid golf ball | Yoshimasa Koizumi | 1997-02-11 |
| 5589546 | Solid golf ball | Yoshimasa Koizumi | 1996-12-31 |
| 5574107 | Solid golf ball | Yoshimasa Koizumi | 1996-11-12 |
| RE35293 | Solid golf ball | Akihiko Hamada | 1996-07-09 |
| 5490674 | Three-piece solid golf ball | Akihiko Hamada, Yoshimasa Koizumi, Yoshikazu Yabuki | 1996-02-13 |
| 5490673 | Golf ball | — | 1996-02-13 |
| 5482285 | Three-piece solid golf ball | Yoshikazu Yabuki, Yoshimasa Koizumi | 1996-01-09 |
| 5482993 | Rubber composition suitable for grips of articles and grip made thereof | — | 1996-01-09 |
| 5215308 | Solid golf ball | Akihiko Hamada | 1993-06-01 |
| 5082285 | Solid golf ball | Akihiko Hamada | 1992-01-21 |
| 4974852 | One-piece solid golf ball | Katsutoshi Kitaoh, Kiyoto Maruoka, Mikio Yamada | 1990-12-04 |
| 4929678 | Rubber composition and a solid golf ball obtained therefrom | Akihiko Hamada, Yoshinobu Nakamura, Hiroshi Ohtsuru | 1990-05-29 |