Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6250887 | Reversible pump-turbine system | Takao Kuwabara | 2001-06-26 |
| 5561358 | Variable speed pumping-up generator | Takao Kuwabara, Yasuteru Oono, Hiroto Nakagawa | 1996-10-01 |
| 4527532 | Fuel-vapor emission control system for an automotive engine | Yoshiaki Kasai, Yasuo Hiraoka, Masaharu Yuasa, Masao Saito | 1985-07-09 |