Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D910129 | Tennis racket | Yosuke Yamamoto | 2021-02-09 |
| 7691005 | Golf ball | — | 2010-04-06 |
| 7150686 | Golf club head | — | 2006-12-19 |
| 7025695 | Golf club head | — | 2006-04-11 |
| 5077336 | Low-temperature insulating material | Takefumi Nakashita, Daijiro Touji, Ichiro Tominaga, Teruo Sasaki, Yukiyasu Nakashio +1 more | 1991-12-31 |
| 5006586 | Heat reserve material | Daijiro Touji, Akihiro Nakahara, Takefumi Nakashita, Yukiyasu Nakashio, Tsuneyuki Nagase | 1991-04-09 |