Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5078236 | Power unit for hydraulic elevator | Motoo Shimoaki, Yoshio Kamiya, Yukihiro Takigawa, Hiroshi Usida | 1992-01-07 |
| 4412600 | Hydraulic elevator | Takuzo Ito, Tadashi Suzuki | 1983-11-01 |