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Inventor

Hirofumi Higashi

Inventor
Sakai, JP

Overview

25→
Patents
1991–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 25 as inventor

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

F01Lprimary
F01LCyclically operating valves for machines or engines15%
F02BInternal-combustion piston engines15%
F02FCylinders, pistons or casings, for combustion engines14%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids8%
Y02TClimate change mitigation technologies related to transportation6%
H01JElectric discharge tubes or discharge lamps5%
Y10TTechnical subjects covered by former us classification5%
F02DControlling combustion engines3%
F04BPositive-displacement machines for liquids3%
F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines3%
PatentTitleYear
10,477,290Loudspeaker device and movable-body device equipped with the same20199,574,495'Variable compression ratio device for internal combustion engine'20179,564,474'TFT substrate, method for producing same, organic EL display device, and method for manufacturing organic EL display device'20179,546,733'Piston'20179,512,842'Rotary compressor'20169,290,695'Method for manufacturing a thin-film semiconductor device using an etching solution for an aluminum oxide film'20168,616,016'Air conditioner, air conditioner manufacturing method, and compressor'20138,362,680'Plasma display panel having low residual stress'20138,356,986'Compressor'20137,789,634'Compressor'20107,739,987'Variable valve gear for an internal combustion engine'20107,364,418'Scroll fluid machine having an adjustment member with a deformable element'20087,059,344'Discharge valve mechanism for variable displacement compressor'20066,979,950'Plasma display panel configured to substantially block the reflection of light which enters a non-light emission area of the plasma display panel'20056,815,149'Plasma display panel'20046,382,178'In-cylinder injection type spark ignition internal combustion engine'20026,196,180'In-cylinder injection type spark ignition internal combustion engine'20015,704,316'Valve drive system of an internal combustion engine'19985,441,020'Valve-moving apparatus for internal combustion engine'19955,429,079'Internal combustion engine for vehicle'19955,427,064'Valve-moving apparatus for internal combustion engine'19955,423,295'Multi-cylinder internal combustion engine'19955,370,090'Multi-cylinder internal combustion engine'19945,353,756'Valve operating system structure with variable valve timing mechanism'19945,024,189'Engine unit'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2017Patents assigned to MITSUBISHI MOTORS CORP (12)· patent assignee history
1991–1995Based in Kameoka, JP· patent location history
1994–1995Based in Kyoto, JP· patent location history
2001–2017Based in Okazaki, JP· patent location history
2006–2016Patents assigned to DAIKIN IND LTD (6)· patent assignee history
2006–2016Based in Sakai, JP· patent location history
2010–2017Patents assigned to MITSUBISHI MOTOR ENG (2)· patent assignee history
2013–2017Patents assigned to HIGASHI HIROFUMI (5)· patent assignee history
2013–2019Based in Osaka, JP· patent location history
2016–2017Patents assigned to JOLED INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI MOTORS CORP121991–2017
DAIKIN IND LTD62006–2016
HIGASHI HIROFUMIself52013–2017
JOLED INC22016–2017
MITSUBISHI MOTOR ENG22010–2017
Locations
LocationPatentsSpan
Sakai, JP52006–2016
Okazaki, JP42001–2017
Kyoto, JP41994–1995
Osaka, JP32013–2019
Kameoka, JP31991–1995