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Inventor

Hideaki Okumura

Inventor
Tokyo, JP

Overview

7→
Patents
1987–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

F02Bprimary
F02BInternal-combustion piston engines15%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein15%
F02FCylinders, pistons or casings, for combustion engines10%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof10%
Y02TClimate change mitigation technologies related to transportation10%
F01LCyclically operating valves for machines or engines5%
F01PCooling of machines or engines in general5%
F02DControlling combustion engines5%
F02GHot gas or combustion-product positive-displacement engine plants5%
F02PIgnition, other than compression ignition, for internal-combustion engines5%
PatentTitleYear
10,480,463Engine20199,234,458'Installation device for instrumentation device of stationary engine'20169,080,531'Cylinder structure for internal combustion engine'20158,757,127'Gas engine with spark plug and bore-cooling holes'20146,473,147'Liquid crystal device, method for manufacturing the liquid crystal device, and electronic apparatus'20024,895,432'Display device having anti-reflective electrodes and/or insulating film'19904,715,686'Light-passive display device and method of manufacturing same'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2002Patents assigned to SEIKO EPSON CORP (2)· patent assignee history
1987Based in Shiojiri, JP· patent location history
1990Based in Nagano, JP· patent location history
2002Based in Yamagata, JP· patent location history
2014–2016Patents assigned to OKUMURA HIDEAKI (3)· patent assignee history
2014Based in Kanagawa, JP· patent location history
2015–2016Patents assigned to FURUKAWA YUTA (2)· patent assignee history
2015–2016Patents assigned to MAEHATA KIMIHIKO (2)· patent assignee history
2015–2016Patents assigned to MITSUBISHI HEAVY IND LTD (2)· patent assignee history
2015–2019Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OKUMURA HIDEAKIself32014–2016
FURUKAWA YUTA22015–2016
MAEHATA KIMIHIKO22015–2016
MITSUBISHI HEAVY IND LTD22015–2016
SEIKO EPSON CORP21987–2002
Locations
LocationPatentsSpan
Tokyo, JP32015–2019
Kanagawa, JP12014
Yamagata, JP12002
Nagano, JP11990
Shiojiri, JP11987