Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10253775 | Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine | Yoshihiro Mitsuhashi, Katsunori Tanaka, Hiroyuki Murakami, Kouji Takahashi, Ichiro Minato | 2019-04-09 |
| 9709057 | Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine | Yoshihiro Mitsuhashi, Katsunori Tanaka, Hiroyuki Murakami, Kouji Takahashi, Ichiro Minato | 2017-07-18 |
| 9255579 | Vacuum pump having rotary compressing elements | Yoshihiro Mitsuhashi, Katsunori Tanaka, Hiroyuki Murakami, Kouji Takahashi, Ichiro Minato | 2016-02-09 |