Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8163117 | Producing method of ball for ball game | Yukinori Nagao | 2012-04-24 |
| 7648434 | Ball for ball game | Yukinori Nagao | 2010-01-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8163117 | Producing method of ball for ball game | Yukinori Nagao | 2012-04-24 |
| 7648434 | Ball for ball game | Yukinori Nagao | 2010-01-19 |