Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7182039 | Striker mechanism for bell unit | Kyoji Ichimura, Kazuharu Seki | 2007-02-27 |
| 6450115 | Bicycle bell with inverted dome | Kyoji Ichimura, Kazaharu Seki | 2002-09-17 |
| 5307756 | Rotating striker bell | Kyoji Ichimura, Kazuharu Seki | 1994-05-03 |