Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8007381 | Bat used for baseball or softball | Koji Yoshida | 2011-08-30 |
| 7993223 | Bat for baseball or softball | Katsumi Shimohira, Shuichi Nagashima | 2011-08-09 |
| 7985149 | Bat for baseball or softball | Katsumi Shimohira, Yuta Okutsu | 2011-07-26 |
| 7980970 | Bat for baseball or softball | Katsumi Shimohira, Shuichi Nagashima | 2011-07-19 |