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Inventor

Takeshi Tokumaru

Inventor
Fujisawa, JP

Overview

5→
Patents
1998–2012
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

F02Mprimary
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof31%
Y02TClimate change mitigation technologies related to transportation23%
F02BInternal-combustion piston engines15%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles8%
F01LCyclically operating valves for machines or engines8%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general8%
F02DControlling combustion engines8%
PatentTitleYear
8,091,522'Variable valve driving device'20127,246,606'Fuel return device for internal combustion engine'20076,918,251'Turbo-charged engine with EGR'20056,062,489'Fuel injector device for engines'20005,803,361'Fuel injector for internal combustion engines'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2012Patents assigned to ISUZU MOTORS LTD (5)· patent assignee history
1998–2007Based in Fujisawa, JP· patent location history
2012Patents assigned to MINATO AKIHIKO (1)· patent assignee history
2012Patents assigned to NISHIMURA TERUKAZU (1)· patent assignee history
2012Patents assigned to TANAKA TSUNEO (1)· patent assignee history
2012Patents assigned to TOKUMARU TAKESHI (1)· patent assignee history
2012Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ISUZU MOTORS LTD51998–2012
MINATO AKIHIKO12012
NISHIMURA TERUKAZU12012
TANAKA TSUNEO12012
TOKUMARU TAKESHIself12012
Locations
LocationPatentsSpan
Fujisawa, JP41998–2007
Kanagawa, JP12012