Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5224446 | Control apparatus for a rotary body for cooling an engine | Reiji Okita | 1993-07-06 |
| 4973233 | Four-rotor type rotary piston engine | Junichi Funamoto, Isao Shimizu, Yoshitaka Matsumuro | 1990-11-27 |
| 4826410 | Cooling systems for rotary piston engines | Nobuhiro Yamamoto | 1989-05-02 |
| 4774918 | Engine lubricating system | Hiroshi Yoshimi, Takuro Shigemura, Yuuji Shono | 1988-10-04 |
| 4765291 | Engine lubricating system | Hiroshi Yoshimi | 1988-08-23 |
| 4729726 | Housing structure for a multiple-rotor type rotary piston engine | Nobuhiro Yamamoto, Junichi Funamoto, Yoriaki Fujimoto | 1988-03-08 |