Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4225295 | Gas seal means for rotary piston engines | Kazuma Shimizu, Yoshimitsu Takeda, Masato Yoshimura | 1980-09-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4225295 | Gas seal means for rotary piston engines | Kazuma Shimizu, Yoshimitsu Takeda, Masato Yoshimura | 1980-09-30 |