Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4926541 | Method of assembling wound rotor of vertical type adjustable speed hydroelectric rotating machine at its installation site | Shinsaku Hakuta, Osamu Nagura, Eiji Tsuji, Makoto Suzuki, Hirotaka Akagawa | 1990-05-22 |
| 4870339 | Variable-speed power generating system | Yosio Furukawa, Osamu Nagura, Eiji Haraguchi, Hiroto Nakagawa, Yasuteru Oono | 1989-09-26 |
| 4274027 | Salient pole rotor with shielding rods between adjacent poles | Shigeo Higuchi, Tsutomu Iwasaki, Koji Sato, Yukio Hirama, Masatoshi Watanabe +1 more | 1981-06-16 |
| 4246505 | Rotor with salient poles and shield plates between the poles | Yosio Furukawa | 1981-01-20 |