Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974309 | Straight wing type wind and water turbine | — | 2005-12-13 |
| 6913435 | Integrated vane for use in wind or water and process for producing same | — | 2005-07-05 |
| 6864594 | Fluid power generator | — | 2005-03-08 |
| 6831374 | Fluid power generator | — | 2004-12-14 |
| 4285636 | Vertical axis type wind power turbine | Yoshio Kato, Yoshio Shimizu | 1981-08-25 |
| 4247252 | Vertical axis wind turbine | Yoshio Shimizu, Yoshio Kato | 1981-01-27 |
| 4247253 | Vertical axis wind turbine | Yoshio Shimizu, Yoshio Kato | 1981-01-27 |