Inventor
WATANABE TAKATOSHI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE TAKATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMADA MFG CO LTD
16 patentsUS9399994B2Jul 26, 2016
Internal gear pump
YAMADA MFG CO LTD3 citations71
US9638189B2May 2, 2017
Oil pump structure
YAMADA MFG CO LTD3 citations67
US10253661B2Apr 9, 2019
Relief device for oil pump
YAMADA MFG CO LTD1 citations61
US9039397B2May 26, 2015
Rotor for oil pump with different contours for the drive-side versus non-drive side of the teeth
YAMADA MFG CO LTD2 citations61
US7625192B2Dec 1, 2009
Internal gear pump including a crescent
YAMADA MFG CO LTD3 citations56
US10851687B2Dec 1, 2020
Relief valve device
YAMADA MFG CO LTD0 citations51
US10247066B2Apr 2, 2019
Relief valve device
YAMADA MFG CO LTD0 citations51
US9341093B2May 17, 2016
Control valve
YAMADA MFG CO LTD1 citations50
US9157436B2Oct 13, 2015
Variable oil pump with improved partitioning section
YAMADA MFG CO LTD1 citations50
US10641143B2May 5, 2020
Relief device of oil circuit of engine
YAMADA MFG CO LTD0 citations41
US7967585B2Jun 28, 2011
Method for manufacturing trochoid pump and trochoid pump obtained
YAMADA MFG CO LTD0 citations41
US7967586B2Jun 28, 2011
Method for manufacturing trochoid pump and trochoid pump obtained
YAMADA MFG CO LTD0 citations41
US9212780B2Dec 15, 2015
Control valve
YAMADA MFG CO LTD0 citations40
US9109479B2Aug 18, 2015
Engine lubrication control system
YAMADA MFG CO LTD0 citations40
US9068485B2Jun 30, 2015
Engine lubrication control system
YAMADA MFG CO LTD0 citations40
US10066621B2Sep 4, 2018
Internal gear pump including an outer ring having cam protruded parts
YAMADA MFG CO LTD0 citations38