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Yorio Iwasaki
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Shimodate, JP
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last 30 patents
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Patent Grant
Substrate for holding a chip of semi-conductor package, semi-conduc...
Patent number
6,236,108
Issue date
May 22, 2001
Hitachi Chemical Company, Ltd.
Yoshiki Sota
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Substrate for holding a chip of semi-conductor package, semi-conduc...
Patent number
6,064,111
Issue date
May 16, 2000
Hitachi Company, Ltd.
Yoshiki Sota
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Current protector
Patent number
5,929,741
Issue date
Jul 27, 1999
Hitachi Chemical Company, Ltd.
Atsushi Nishimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process for producing multiple wire wiring board
Patent number
5,584,121
Issue date
Dec 17, 1996
Hitachi Chemical Company, Ltd.
Shigeharu Arike
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Multiple wire adhesive on a multiple wire wiring board
Patent number
5,486,655
Issue date
Jan 23, 1996
Hitachi Chemical Co., Ltd.
Shigeharu Arike
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Adhesive of epoxy resins, epoxy-modified polybutadiene and photoini...
Patent number
5,403,869
Issue date
Apr 4, 1995
Hitachi Chemical Company, Ltd.
Shigeharu Arike
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing coaxial conductor interconnection wiring board
Patent number
5,323,534
Issue date
Jun 28, 1994
Hitachi, Ltd.
Yorio Iwasaki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process for producing printed wiring board
Patent number
5,309,632
Issue date
May 10, 1994
Hitachi Chemical Co., Ltd.
Hiroshi Takahashi
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Coaxial conductor interconnection wiring board
Patent number
5,233,133
Issue date
Aug 3, 1993
Hitachi Chemical Company Ltd.
Yorio Iwasaki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Adhesive composition for printed wiring boards with acrylonitrile-b...
Patent number
5,053,280
Issue date
Oct 1, 1991
Hitachi Chemical Co., Ltd.
Shin Takanezawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
High-density wired circuit board using insulated wires
Patent number
4,791,238
Issue date
Dec 13, 1988
Hitachi Chemical Company, Ltd.
Masao Kanno
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of improving adhesion between insulating substrates and meta...
Patent number
4,216,246
Issue date
Aug 5, 1980
Hitachi Chemical Company, Ltd.
Yorio Iwasaki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...