Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6224039 | Chain block | Takasi Uesugi | 2001-05-01 |
| D424269 | Wheel cover for chain block | Tadasu Matusima, Takasi Uesugi | 2000-05-02 |
| 6032928 | Hand operated chain block having improved hand wheel | Takasi Uesugi, Eikiti Kobayasi | 2000-03-07 |
| 6007054 | Hand operated chain block having an improved cover | Eikiti Kobayasi | 1999-12-28 |