Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923141 | Spinning reel having reverse rotation preventing mechanism | Kenji Maruyama | 1990-05-08 |
| 4527752 | Fishing spinning reel | Kenji Maruyama | 1985-07-09 |
| 4328937 | Fishing spinning reels with auxiliary drag mechanisms | Joseph M. Holahan, Takehiro Kobayashi | 1982-05-11 |