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Inventor

Junichi Yokoyama

Inventor
Saitama, JP

Overview

25→
Patents
1981–2020
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.

F02Bprimary
F02BInternal-combustion piston engines7%
G06FElectric digital data processing7%
G09GArrangements or circuits for control of indicating devices using static means to present variable information7%
Y02TClimate change mitigation technologies related to transportation7%
F02DControlling combustion engines5%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof5%
H04NPictorial communication, e.g. television5%
F01PCooling of machines or engines in general4%
F02FCylinders, pistons or casings, for combustion engines4%
G02BOptical elements, systems or apparatus4%
PatentTitleYear
10,574,150Power conversion apparatus, method for manufacturing power conversion apparatus, and electric appliance202010,021,815Power conversion apparatus20189,651,205'Lighting device with light shielding pattern and video display device using the same'20179,372,387'Laser projector'20168,766,964'Image display device'20148,345,034'Address drive circuit and plasma display apparatus'20138,187,760'Fuel cell system for repressing reservoir water backflow'20127,980,708'Document presentation device including a movable part'20117,762,672'Data presentation apparatus and operation method of terminal'20107,289,112'Presentation device'20077,176,881'Presentation system, material presenting device, and photographing device for presentation'20077,164,392'Material presentation device'20077,027,041'Presentation system'20066,910,778'Presentation system using laser pointer'20056,761,456'Laser presentation system using a laser pointer'20045,304,619'Ethylene polymers or copolymers having improved insulating properties, compositions, and power cables made therefrom'19945,072,583'Exhaust system for internal combustion engines'19914,995,359'Combustion chamber for internal combustion engine'19914,873,953'Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber'19894,517,134'Variable venturi carburetor'19854,484,541'Cooling system for automotive internal combustion engine'19844,445,480'Intake system of internal combustion engine'19844,383,501'Cooling system for internal combustion engine'19834,370,282'Control device for acceleration pump'19834,297,302'Butterfly throttle valve with a raised upper lip'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1991Patents assigned to NISSAN MOTOR (9)· patent assignee history
1981–1985Based in Ebina, JP· patent location history
2005–2011Patents assigned to FUJINON CORP (7)· patent assignee history
2005–2011Based in Saitama, JP· patent location history
2012–2017Patents assigned to YOKOYAMA JUNICHI (4)· patent assignee history
2013–2016Based in Fujisawa, JP· patent location history
2014–2017Patents assigned to YAMAMOTO SHOJI (2)· patent assignee history
2017Based in Tokyo, JP· patent location history
2018–2020Patents assigned to YASKAWA ELECTRIC CORP (2)· patent assignee history
2018–2020Based in Kitakyushu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NISSAN MOTOR91981–1991
FUJINON CORP72005–2011
YOKOYAMA JUNICHIself42012–2017
YAMAMOTO SHOJI22014–2017
YASKAWA ELECTRIC CORP22018–2020
Locations
LocationPatentsSpan
Saitama, JP72005–2011
Ebina, JP61981–1985
Fujisawa, JP32013–2016
Kitakyushu, JP22018–2020
Tokyo, JP12017