Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7955186 | Golf club and shaft replacing method | Fumiaki Sato, Hiroshi Takahashi | 2011-06-07 |
| 7942759 | Golf club head | Makoto Kubota, Masaomi Hiruta | 2011-05-17 |
| 7935003 | Golf club head | Hiroshi Takahashi, Makoto Kubota | 2011-05-03 |
| 7927231 | Golf club head | Fumiaki Sato, Hiroshi Takahashi | 2011-04-19 |
| 7914396 | Golf club head | Yasunori Imamoto, Hisashi Yamagishi | 2011-03-29 |
| 7883431 | Golf club head | Makoto Kubota, Masaomi Hiruta | 2011-02-08 |