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Inventor

Yoshitoshi Sato

Inventor
Yokohama, JP

Overview

9→
Patents
1981–2001
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.

H10Wprimary
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1035%
C04BLime, magnesia26%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1013%
Y10TTechnical subjects covered by former us classification13%
F16CShafts4%
H01CResistors4%
H05BElectric heating4%
PatentTitleYear
6,232,657'Silicon nitride circuit board and semiconductor module'20016,040,039'Silicon nitride circuit board'20005,998,000'Silicon nitride circuit board'19995,928,768'Silicon nitride circuit board'19995,744,410'High thermal conductive silicon nitride sintered body, method of producing the same and press-contacted body'19985,703,397'Semiconductor package having an aluminum nitride substrate'19975,698,896'High thermal conductive silicon nitride structural member, semiconductor package, heater and thermal head'19975,463,248'Semiconductor package using an aluminum nitride substrate'19954,290,042'Controller for electric motor'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to YAMAMOTO ELECTRIC IND CO LTD (1)· patent assignee history
1981Based in Sukagawa, JP· patent location history
1995–2001Patents assigned to TOSHIBA KK (7)· patent assignee history
1995Patents assigned to SUMITOMO METAL CERAMICS INC (1)· patent assignee history
1995Patents assigned to SUMITOMO METAL IND (1)· patent assignee history
1995–2001Based in Yokohama, JP· patent location history
1997Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1997Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA KK71995–2001
SUMITOMO METAL CERAMICS INC11995
SUMITOMO METAL IND11995
TOKYO SHIBAURA ELECTRIC CO11997
YAMAMOTO ELECTRIC IND CO LTD11981
Locations
LocationPatentsSpan
Yokohama, JP71995–2001
Tokyo, JP11997
Sukagawa, JP11981