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Inventor

Hideaki Ohnishi

Inventor
Atsugi, JP

Overview

30→
Patents
1998–2018
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 30 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F04Cprimary
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids50%
F01MLubricating of machines or engines in general12%
Y10TTechnical subjects covered by former us classification10%
F01CRotary-piston or oscillating-piston machines or engines4%
F01LCyclically operating valves for machines or engines4%
B01DSeparation2%
B82YSpecific uses or applications of nanostructures2%
C07CAcyclic or carbocyclic compounds2%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium2%
F04BPositive-displacement machines for liquids2%
PatentTitleYear
9,903,367'Variable displacement oil pump'20189,670,926'Variable displacement pump'20179,556,867'Vane pump'2017RE046294'Variable displacement pump'20179,534,596'Variable displacement pump'20179,518,484'Variable displacement pump'20169,494,153'Variable displacement oil pump'20169,453,440'Oil pump for internal combustion engine, and relief pressure control apparatus for oil pump'20169,347,344'Variable-capacity oil pump and oil supply system using same'20169,133,842'Variable displacement pump'20159,109,596'Variable displacement pump'20159,046,100'Variable vane pump with communication groove in the cam ring'20159,004,882'Variable displacement vane pump having multiple dampening springs'20158,834,132'Apparatus having control valve and variable capacitance pump and hydraulic pressure circuit of internal combustion engine in which the same apparatus is used'20148,684,702'Variable displacement pump'20148,613,610'Variable displacement pump'20138,545,200'Variable displacement oil pump'20138,142,173'Variable displacement vane pump'20128,075,284'Oil pump'20117,827,947'Variable displacement pump, valve timing control device using the variable displacement pump, and valve timing control system using the variable displacement pump, for use in internal combustion engines'20107,704,061'Oil pump'20107,361,002'Oil pump'20087,290,995'Tandem type trochoid pump and method of assembling the same'20076,544,021'Oil pump'20036,352,085'Pressure relief valve'20026,242,737'Microscopic system equipt with an electron microscope and a scanning probe microscope'20016,086,337'Variable capacity pump'20005,797,732'Variable capacity pump having a pressure responsive relief valve arrangement'19985,710,347'Method of producing a high-melting powder of 2,2-bis›4\'-(2\",3\"-dibromopropoxy)-3\',5\'-dibromophenyl!-propane'19985,710,309'Process for producing tris (tribromoneopentyl) phosphate'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2018Based in Atsugi, JP· patent location history
1998Based in Shiga, JP· patent location history
2001Based in Akishima, JP· patent location history
2002–2011Based in Kanagawa, JP· patent location history
2007–2012Patents assigned to HITACHI LTD (6)· patent assignee history
2011–2015Patents assigned to OHNISHI HIDEAKI (8)· patent assignee history
2011–2015Patents assigned to WATANABE YASUSHI (8)· patent assignee history
2012–2015Patents assigned to SAGA KOJI (4)· patent assignee history
2013–2018Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (17)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI AUTOMOTIVE SYSTEMS LTD172013–2018
OHNISHI HIDEAKIself82011–2015
WATANABE YASUSHI82011–2015
HITACHI LTD62007–2012
SAGA KOJI42012–2015
Locations
LocationPatentsSpan
Atsugi, JP211998–2018
Kanagawa, JP62002–2011
Shiga, JP21998
Akishima, JP12001