Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884812 | Golf club head | Itsushi Nagamoto, Toyohiko Tadokoro, Masaki Fujimura | 1989-12-05 |
| 4798383 | Golf club head | Itsushi Nagamoto, Toyohiko Tadokoro, Masaki Fujimura | 1989-01-17 |