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Shunichiro Uchimura
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Photosensitive polyimide precursor and its use for pattern formation
Patent number
6,319,656
Issue date
Nov 20, 2001
Hitachi Chemical Company, Ltd.
Haruhiko Kikkawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Photosensitve polymide precursor and its use for pattern formation
Patent number
6,025,113
Issue date
Feb 15, 2000
Hitachi Chemical Company, Ltd.
Haruhiko Kikkawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Low dielectric resin composition
Patent number
5,905,117
Issue date
May 18, 1999
Asahi Glass Company Ltd.
Shunsuke Yokotsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Insulating resin composition and semiconductor device using the same
Patent number
5,132,386
Issue date
Jul 21, 1992
Hitachi Chemical Co., Ltd.
Hiroshi Suzuki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Compositions of materials for forming protective film in semiconduc...
Patent number
4,497,922
Issue date
Feb 5, 1985
Hitachi Chemical Company, Ltd.
Hidetaka Sato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Intermediate, copolymer resin and production thereof
Patent number
4,338,426
Issue date
Jul 6, 1982
Hitachi Chemical Company, Ltd.
Hidetaka Sato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Photosensitive polyimide precursor and its use for pattern formation
Publication number
20020048726
Publication date
Apr 25, 2002
Hitachi Chemical Company, Ltd.
Haruhiko Kikkawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...