Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12297829 | Variable-capacity oil pump | Daisuke Kato, Nobuaki Sogawa | 2025-05-13 |
| 12286970 | Oil pump | Daisuke Kato, Nobuaki Sogawa | 2025-04-29 |
| 11905948 | Variable displacement oil pump including swing member | Yasushi Watanabe, Hideaki Ohnishi, Atsushi Naganuma | 2024-02-20 |
| 11603779 | Oil pump and control valve | Tadao Nakamura | 2023-03-14 |
| 11415128 | Variable displacement pump and control method therefor | Hideaki Ohnishi | 2022-08-16 |
| 11215178 | Variable capacity pump and working oil supply system for internal combustion engine | Yasushi Watanabe, Atsushi Naganuma, Hideaki Ohnishi | 2022-01-04 |
| 11168684 | Variable displacement pump | Hideaki Ohnishi, Yasushi Watanabe | 2021-11-09 |
| 10161398 | Variable displacement oil pump | — | 2018-12-25 |
| 10060433 | Variable vane displacement pump utilizing a control valve and a switching valve | — | 2018-08-28 |
| 9903367 | Variable displacement oil pump | Yasushi Watanabe, Hideaki Ohnishi, Atsushi Naganuma | 2018-02-27 |
| 9556867 | Vane pump | Hideaki Ohnishi, Yasushi Watanabe | 2017-01-31 |
| 9534596 | Variable displacement pump | Yasushi Watanabe, Hideaki Ohnishi | 2017-01-03 |
| 9494152 | Variable vane displacement pump utilizing a control valve and a switching valve | — | 2016-11-15 |
| 9494153 | Variable displacement oil pump | Yasushi Watanabe, Hideaki Ohnishi | 2016-11-15 |
| 9243632 | Variable displacement oil pump | — | 2016-01-26 |
| 9206690 | Variable displacement pump | Dai Niwata | 2015-12-08 |
| 9109596 | Variable displacement pump | Hideaki Ohnishi, Yasushi Watanabe | 2015-08-18 |
| 9046100 | Variable vane pump with communication groove in the cam ring | Yasushi Watanabe, Hideaki Ohnishi | 2015-06-02 |
| 9004882 | Variable displacement vane pump having multiple dampening springs | Hideaki Ohnishi, Yasushi Watanabe | 2015-04-14 |
| 8613610 | Variable displacement pump | Hideaki Ohnishi, Yasushi Watanabe | 2013-12-24 |
| 8342815 | Oil pump | Yasushi Watanabe | 2013-01-01 |
| 8186969 | Variable displacement pump | Shoji Morita, Yasushi Watanabe | 2012-05-29 |
| 8142173 | Variable displacement vane pump | Yasushi Watanabe, Hideaki Ohnishi | 2012-03-27 |