| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 8 | |
| #2 | United States | 7 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Measurement | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Physical training equipment | |
| #2 | Analysing materials | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Watari Makoto | 12 |
| #2 | Yanagisawa Kazuaki | 4 |
| #3 | Shimohira Katsumi | 4 |
| #4 | Kawaguchi Masatake | 4 |
| #5 | Inoue Akihisa | 2 |
| #6 | Nagashima Shuichi | 2 |
| #7 | Hosoda Keiji | 2 |
| #8 | Iwase Masahito | 2 |
| #9 | Okutsu Yuta | 1 |
| #10 | Yakida Atsushi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2009280935A1 | Bat for baseball or softball | |
| US2009280934A1 | Bat for baseball or softball | |
| JP2006000620A | Golf club shaft | |
| JP2003135636A | Carbon shaft for golf club | |
| JP2002291951A | Shaft for golf club | |
| JP2002102400A | Steel shaft | |
| JP2001170231A | Putter head for golf | |
| JP2000121522A | Method for evaluating rebounding characteristic of elastic body | |
| JP2000079186A | Golf club shaft | |
| JP2000070423A | Golf club shaft | |
| US6135896A | Putter club |