Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8459973 | Vane pump having an oil supply passage communicating with a gas passage in the stopping state | Ryuichi Sakakibara, Kiyotaka Ohtahara, Kikuji Hayashida | 2013-06-11 |
| 8449277 | Vane pump having a passage area ratio between an oil supply passage area and a gas passage area | Ryuichi Sakakibara, Kikuji Hayashida, Kiyotaka Ohtahara | 2013-05-28 |