LexDanaLexDanabeta
Inventor

Shuroku Sakurada

Inventor
Katsuta, JP

Overview

11→
Patents
1981–1997
Patent span
Electricity
Primary field (CPC H)

Patents· 11 as inventor

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

H10Dprimary
H10DInorganic electric semiconductor devices60%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1033%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
5,652,467'Semiconductor device and package structure therefore and power inverter having semiconductor device'19975,635,734'Insulated gate type semiconductor device in which the reliability and characteristics thereof are not deteriorated due to pressing action and power inverter using the same'19975,554,863'Gate turn-off thyristor'19965,051,806'Gate turn-off thyristor of multi-emitter type'19914,868,625'Gate turn-off thyristor of multi-emitter type'19894,786,959'Gate turn-off thyristor'19884,775,916'Pressure contact semiconductor device'19884,682,198'Gate turn-off thyristor with integral capacitive anode'19874,607,273'Power semiconductor device'19864,450,467'Gate turn-off thyristor with selective anode penetrating shorts'19844,298,881'Semiconductor device with double moat and double channel stoppers'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1997Patents assigned to HITACHI LTD (11)· patent assignee history
1981–1988Based in Hitachi, JP· patent location history
1987–1996Based in Katsuta, JP· patent location history
1988Patents assigned to HITACHI HARAMACHI SEMI CONDUCT (1)· patent assignee history
1996Patents assigned to HITACHI HARAMACHI ELECTRONICS (1)· patent assignee history
1997Based in Hitachinaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD111981–1997
HITACHI HARAMACHI ELECTRONICS11996
HITACHI HARAMACHI SEMI CONDUCT11988
Locations
LocationPatentsSpan
Katsuta, JP51987–1996
Hitachi, JP41981–1988
Hitachinaka, JP21997