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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Circuit board
Patent number
7,141,741
Issue date
Nov 28, 2006
Hitachi, Ltd.
Kazuji Yamada
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor device
Patent number
6,434,008
Issue date
Aug 13, 2002
Hitachi, Ltd.
Kazuji Yamada
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor module
Patent number
6,353,258
Issue date
Mar 5, 2002
Hitachi, Ltd.
Hirokazu Inoue
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of high frequency pulse arc welding and apparatus therefor
Patent number
6,225,598
Issue date
May 1, 2001
Hitachi, Ltd.
Masayasu Nihei
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor device having power semiconductor elements
Patent number
5,956,231
Issue date
Sep 21, 1999
Hitachi, Ltd.
Kazuji Yamada
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method of solder bonding and power semiconductor device manufacture...
Patent number
5,767,577
Issue date
Jun 16, 1998
Hitachi, Ltd.
Masayasu Nihei
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Power semiconductor device
Patent number
5,539,244
Issue date
Jul 23, 1996
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of and apparatus for sputtering, and integrated circuit device
Patent number
5,175,608
Issue date
Dec 29, 1992
Hitachi, Ltd.
Masayasu Nihei
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Semiconductor device using annealed bonding wire
Patent number
5,153,704
Issue date
Oct 6, 1992
Hitachi, Ltd.
Jin Onuki
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor device and method for manufacturing the same
Patent number
5,051,812
Issue date
Sep 24, 1991
Hitachi, Ltd.
Jin Onuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method of fabricating the same
Patent number
5,019,891
Issue date
May 28, 1991
Hitachi, Ltd.
Jin Onuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of and apparatus for sputtering
Patent number
4,999,096
Issue date
Mar 12, 1991
Hitachi, Ltd.
Masayasu Nihei
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Semiconductor device and production process thereof, as well as wir...
Patent number
4,976,393
Issue date
Dec 11, 1990
Hitachi, Ltd.
Makoto Nakajima
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor device
Patent number
4,965,656
Issue date
Oct 23, 1990
Hitachi, Ltd.
Yasushi Koubuchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Corrosion-resistant aluminum electronic material
Patent number
4,912,544
Issue date
Mar 27, 1990
Hitachi, Ltd.
Jin Onuki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Semiconductor devices of multi-emitter type
Patent number
4,542,398
Issue date
Sep 17, 1985
Hitachi, Ltd.
Tsutomu Yatsuo
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
4,500,904
Issue date
Feb 19, 1985
Hitachi, Ltd.
Jin Onuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Stacked structure having matrix-fibered composite layers and a meta...
Patent number
4,482,912
Issue date
Nov 13, 1984
Hitachi, Ltd.
Akio Chiba
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of fabricating semiconductor device by bonding together sili...
Patent number
4,246,693
Issue date
Jan 27, 1981
Hitachi, Ltd.
Jin Onuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Solder layer for a semi-conductor device consisting of at least one...
Patent number
4,110,783
Issue date
Aug 29, 1978
Hitachi, Ltd.
Hisakichi Onodera
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
Circuit board
Publication number
20040056349
Publication date
Mar 25, 2004
Kazuji Yamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device
Publication number
20030016502
Publication date
Jan 23, 2003
Kazuji Yamada
H01 - BASIC ELECTRIC ELEMENTS