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Inventor

Tamotsu Todo

Inventor
Kanagawa, JP

Overview

16→
Patents
1991–2017
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 16 as inventor

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

F01Lprimary
F01LCyclically operating valves for machines or engines54%
Y10TTechnical subjects covered by former us classification13%
F16FSprings8%
B23PMetal-working not otherwise provided for4%
F02BInternal-combustion piston engines4%
F16DCouplings for transmitting rotation4%
F16HGearing4%
H02KDynamo-electric machines4%
Y02TClimate change mitigation technologies related to transportation4%
PatentTitleYear
9,816,582'Balancer device for internal combustion engine'20179,068,626'Balancer device of internal combustion engine'20157,171,931'Variable valve system with control shaft actuating mechanism'20077,077,086'Variable valve system with control shaft actuating mechanism'20067,055,477'Valve actuation apparatus for internal combustion engine and method of adjusting lift thereof'20067,032,551'Adjusting mechanism adjusting method of valve-lift amount of internal combustion engine'20066,805,081'Valve timing control device for internal combustion engine'20046,672,265'Valve timing control system for internal combustion engine'20046,672,264'Valve timing control device of internal combustion engine'20046,520,132'Valve timing control system of internal combustion engine'20036,502,537'Valve timing control device of internal combustion engine'20036,263,843'Valve timing control device of internal combustion engine'20016,032,643'Decompression engine brake device of automotive internal combustion engine'20005,918,367'Method of producing valve lifter'19995,203,290'Intake and/or exhaust-valve timing control sytem for internal combustion engine'19935,070,981'Fluid coupling'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1993Patents assigned to ATSUGI UNISIA CORP (2)· patent assignee history
1991–2007Based in Kanagawa, JP· patent location history
1999–2003Patents assigned to UNISIA JECS CORP (5)· patent assignee history
2004Patents assigned to HITACHI UNISIA AUTOMOTIVE LTD (3)· patent assignee history
2006–2007Patents assigned to HITACHI LTD (2)· patent assignee history
2006–2017Based in Atsugi, JP· patent location history
2015–2017Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNISIA JECS CORP51999–2003
HITACHI UNISIA AUTOMOTIVE LTD32004
ATSUGI UNISIA CORP21991–1993
HITACHI AUTOMOTIVE SYSTEMS LTD22015–2017
HITACHI LTD22006–2007
Locations
LocationPatentsSpan
Kanagawa, JP131991–2007
Atsugi, JP32006–2017