| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Australia | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Hong Kong | 2 | |
| #5 | Canada | 1 | |
| #6 | Germany | 1 | |
| #7 | Spain | 1 | |
| #8 | France | 1 | |
| #9 | Italy | 1 | |
| #10 | Republic of Korea | 1 | |
| #11 | Singapore | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Physical training equipment | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Honma Yukihiro | 18 |
| Publication | Filing date | Title |
|---|---|---|
| US5049422A | Golf shaft | |
| US4801146A | Golf club head | |
| AU4370685A | Golf club head |