Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402617 | Fishing game device | Yutaka Yokoyama, Masaru Sugahara, Junpei Sato, Yoshiharu Suzuki | 2002-06-11 |
| 6361436 | Fishing game device | Yutaka Yokoyama, Masaru Sugahara, Junpei Sato, Yoshiharu Suzuki | 2002-03-26 |