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Inventor

Masato Yabu

Inventor
Hitachi, JP

Overview

9→
Patents
2004–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

H01Hprimary
H01HElectric switches60%
H01FMagnets20%
B60LPropulsion of electrically-propelled vehicles7%
B61GCouplings7%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power7%
PatentTitleYear
10,589,760Branching unit and vehicular system20209,437,380'Switching unit or switching gear'20169,378,913'Operating device or vacuum switch'20169,142,371'Actuator for contactor'20158,946,581'Switchgear'20158,570,121'Air circuit breaker'20137,075,398'Electromagnet and actuating mechanism for switch device, using thereof'20066,940,376'Electromagnet and actuating mechanism for switch device, using thereof'20056,816,048'Electromagnet and actuating mechanism for switch device, using thereof'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2016Patents assigned to HITACHI LTD (7)· patent assignee history
2004–2006Patents assigned to HITACHI ENG SERVICE (3)· patent assignee history
2004–2015Based in Hitachi, JP· patent location history
2013Patents assigned to MORITA AYUMU (1)· patent assignee history
2013Patents assigned to SAWADA MASASHI (1)· patent assignee history
2015–2020Based in Tokyo, JP· patent location history
2020Patents assigned to HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD72004–2016
HITACHI ENG SERVICE32004–2006
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD12020
MORITA AYUMU12013
SAWADA MASASHI12013
Locations
LocationPatentsSpan
Hitachi, JP52004–2015
Tokyo, JP42015–2020