Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602044 | Pump turbine, method of controlling thereof, and method of stopping thereof | Takao Kuwabara, Hiroto Nakagawa, Haruki Hagiwara | 2003-08-05 |
| 6336322 | Method of controlling a pump turbine | Takao Kuwabara, Hiroto Nakagawa, Haruki Hagiwara | 2002-01-08 |