Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10507368 | Baseball or softball bat | Kohei Kikuchi, Yohei Yamashita | 2019-12-17 |
| 10245488 | Vibration damping bat and methods of making the same | Yohei Yamashita, David Llewellyn | 2019-04-02 |