Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6572489 | Golf club head | Masahiko Miyamoto, Masaki Akie | 2003-06-03 |
| 6546802 | Evaluation method of golf club and golf club | Takayuki Shiraishi, Masayoshi Kogawa, Masaki Akie | 2003-04-15 |
| 6514153 | Golf club head | Masahiko Miyamoto | 2003-02-04 |