Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8678519 | Spoke wheel and spoke using therefor | Toshihiro Yamamoto | 2014-03-25 |
| 7909718 | Seal chain and manufacturing method thereof | — | 2011-03-22 |
| 7721520 | Chain disconnecting and connecting tool | Susumu Hirasawa | 2010-05-25 |
| 5224904 | Chain joint | Takuma Ono | 1993-07-06 |
| 4915676 | Power transmission chain | — | 1990-04-10 |