Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9597563 | Multi-track adjustable golf club | David Llewellyn, Kazuya Ishida, Tetsuya Kanayama, Kei Tsuji | 2017-03-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9597563 | Multi-track adjustable golf club | David Llewellyn, Kazuya Ishida, Tetsuya Kanayama, Kei Tsuji | 2017-03-21 |