Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D617858 | Driver-type golf club head | David Llewellyn, Tetsuya Kanayama | 2010-06-15 |
| D617403 | Driver-type golf club head | David Llewellyn, Tetsuya Kanayama, Mamoru Saraie | 2010-06-08 |
| D611554 | Back design for an iron golf club head | David Llewellyn, Tetsuya Kanayama, Tomoaki Aoki | 2010-03-09 |