Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12172055 | Ball | Kunihiko Yamada, Hisashi Kubota | 2024-12-24 |
| 11752395 | Assembly ball | Jun Uchida, Shunpei Katsuta | 2023-09-12 |
| 11117023 | Ball | Yukinori Nagao, Ryo Kurahashi | 2021-09-14 |
| 10583331 | Skin body structure for ball | Yosuke Sato, Naoyuki Fujiwara, Yukinori Nagao | 2020-03-10 |