Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8936450 | Roots fluid machine with reduced gas leakage | Shinya Yamamoto, Takashi Ban, Takayuki Imai, Katsumi Yamashita, Yasunaka Hanaoka | 2015-01-20 |
| 8556607 | Screw rotor | Shinya Yamamoto, Masahiro Inagaki, Makoto Yoshikawa | 2013-10-15 |
| 8348650 | Root pump | Masahiro Inagaki, Shinya Yamamoto, Makoto Yoshikawa | 2013-01-08 |
| 8215937 | Fluid machine with divided housing | Masahiro Inagaki, Shinya Yamamoto, Makoto Yoshikawa | 2012-07-10 |
| 7798794 | Screw pump and screw rotor | Shinya Yamamoto, Masahiro Inagaki, Makoto Yoshikawa | 2010-09-21 |
| 7497672 | Screw pump with increased volume of fluid to be transferred | Masahiro Inagaki, Shinya Yamamoto, Makoto Yoshikawa | 2009-03-03 |
| 7484943 | Screw pump with improved efficiency of drawing fluid | Shinya Yamamoto, Masahiro Inagaki, Makoto Yoshikawa | 2009-02-03 |
| 7458790 | Vacuum pump with improved oil lubrication | Shinya Yamamoto, Ryosuke Koshizaka, Masahiro Inagaki, Kentaro Ishihara | 2008-12-02 |