Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11644031 | Vane pump with tip-end-side guide surfaces provided between inner and outer notches of the discharge port and base-end-side guide surface provided in the back pressure port | Tomoyuki Nakagawa, Masamichi Sugihara, Atsumi Takahashi, Satoshi Watanabe | 2023-05-09 |