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Inventor

Yoshinobu Ohtsubo

Inventor
Kanagawa, JP

Overview

3→
Patents
1991–1997
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H10Dprimary
H10DInorganic electric semiconductor devices100%
PatentTitleYear
5,665,987'Insulated gate static induction thyristor with a split gate type shorted cathode structure'19975,461,242'Insulated gate static induction thyristor with a split gate type shorted cathode structure'19954,984,049'Static induction thyristor'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1997Patents assigned to TOYO ELECTRIC MFG CO LTD (3)· patent assignee history
1991Patents assigned to ZAIDAN HOJIN HANDOTAI KENKYU (1)· patent assignee history
1991Based in Yokohama, JP· patent location history
1995–1997Based in Kanagawa, JP· patent location history
1997Patents assigned to TAMAMUSHI TAKASHIGE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYO ELECTRIC MFG CO LTD31991–1997
TAMAMUSHI TAKASHIGE11997
ZAIDAN HOJIN HANDOTAI KENKYU11991
Locations
LocationPatentsSpan
Kanagawa, JP21995–1997
Yokohama, JP11991