Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D797225 | Golf club shaft | Masahiro Kishi | 2017-09-12 |
| D790014 | Golf club shaft | Hirotaka Nishibori, Masahiro Kishi | 2017-06-20 |
| D772994 | Golf club shaft | Masahiro Kishi | 2016-11-29 |
| D772362 | Golf club shaft | Masahiro Kishi | 2016-11-22 |
| D737916 | Golf club shaft | Koji Shiga | 2015-09-01 |
| D709152 | Golf club shaft | Tsutomu Ibuki | 2014-07-15 |
| D699801 | Golf club shaft | Kouji Shiga, Toshio Ninomiya | 2014-02-18 |