Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11130031 | Golf club | Naruhiro MIZUTANI, Takashi Nakamura, Kenji Takasu | 2021-09-28 |
| 11130030 | Golf club | Takashi Nakamura, Naruhiro MIZUTANI, Kenji Takasu, Wataru Kimizuka, Masahiko Ueda | 2021-09-28 |
| 11123618 | Golf club | Naruhiro MIZUTANI, Seiji Hayase, Kenji Takasu, Takashi Nakano | 2021-09-21 |
| 10994180 | Golf club | Kenji Takasu, Takashi Nakamura, Naruhiro MIZUTANI | 2021-05-04 |
| 10987553 | Golf club | Takashi Nakamura, Naruhiro MIZUTANI, Kenji Takasu, Wataru Kimizuka, Masahiko Ueda | 2021-04-27 |
| 10987555 | Golf club | Naruhiro MIZUTANI, Takashi Nakamura, Kenji Takasu | 2021-04-27 |
| 10987554 | Golf club | Takashi Nakamura, Naruhiro MIZUTANI, Kenji Takasu, Wataru Kimizuka, Masahiko Ueda | 2021-04-27 |