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Inventor

Tokio Ohkoshi

Inventor
Hitachi, JP

Overview

3→
Patents
1985–1986
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.

C04Bprimary
C04BLime, magnesia25%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1025%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
Y10TTechnical subjects covered by former us classification17%
H01BCables8%
H05KPrinted circuits8%
PatentTitleYear
4,585,706'Sintered aluminum nitride semi-conductor device'19864,571,610'Semiconductor device having electrically insulating substrate of SiC'19864,540,673'Sintered aluminum nitride and semi-conductor device using the same'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1986Patents assigned to HITACHI LTD (3)· patent assignee history
1985–1986Based in Hitachi, JP· patent location history
1986Based in Toyohashi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31985–1986
Locations
LocationPatentsSpan
Hitachi, JP21985–1986
Toyohashi, JP11986