Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D966803 | Windshield for portable stove | — | 2022-10-18 |
| 9297450 | Bicycle rear sprocket | Tsuyoshi Fukumori | 2016-03-29 |
| 8096908 | Bicycle sprocket with a laterally projecting gear change tooth | Toshinari Oishi, Kenji Kamada | 2012-01-17 |
| 7473198 | Apparatus for connecting bicycle chain links together | Kenji Kamada, Toshinari Oishi, Takao Harada, Nobutaka Masaoka | 2009-01-06 |