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Inventor

Eiji Harada

Inventor
Kanagawa, JP

Overview

8→
Patents
1989–2011
Patent span
Physics
Primary field (CPC G)

Patents· 8 as inventor

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

G01Rprimary
G01RMeasuring electric variables33%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for8%
B61DBody details or kinds of railway vehicles8%
B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles8%
B62DMotor vehicles8%
G05BControl or regulating systems in general8%
G06FElectric digital data processing8%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%
Y02PClimate change mitigation technologies in the production or processing of goods8%
PatentTitleYear
7,934,136'Test apparatus, pattern generator, test method and pattern generating method'20117,873,887'Burn-in test circuit, burn-in test method, burn-in test apparatus, and a burn-in test pattern generation program product'20117,511,506'Semiconductor testing system and testing method'20097,360,492'Railway car with overload detector'20087,350,858'Vehicular back trim'20086,044,214'Fault simulation method operable at a high speed'20005,870,306'Automatic programming method and device for multi-system machine tool'19994,884,126'Semiconductor device having parallel-connected, self turn-off type semiconductor elements'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2008Patents assigned to HITACHI LTD (2)· patent assignee history
1989Based in Hitachi, JP· patent location history
1999Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history
1999–2000Based in Tokyo, JP· patent location history
2008Patents assigned to DAIKYONISHIKAWA CORP (1)· patent assignee history
2008Patents assigned to MAZDA MOTOR (1)· patent assignee history
2008Based in Kudamatsu, JP· patent location history
2008Based in Hiroshima, JP· patent location history
2009–2011Based in Kanagawa, JP· patent location history
2011Patents assigned to RENESAS ELECTRONICS CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD21989–2008
RENESAS ELECTRONICS CORP22011
DAIKYONISHIKAWA CORP12008
MAZDA MOTOR12008
MITSUBISHI ELECTRIC CORP11999
Locations
LocationPatentsSpan
Kanagawa, JP32009–2011
Tokyo, JP21999–2000
Kudamatsu, JP12008
Hiroshima, JP12008
Hitachi, JP11989