Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647975 | Convertible ball projecting apparatus having a replaceable fork assembly | — | 2003-11-18 |
| 4995607 | Interactive sports training device | — | 1991-02-26 |
| 4669444 | Ball tossing apparatus | Masami Shigeta | 1987-06-02 |