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Naoshige Takeda
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device using positive photosensitive resin compositio...
Patent number
6,235,436
Issue date
May 22, 2001
Sumitomo Bakelite Company Limited
Takashi Hirano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive type photosensitive resin composition and semiconductor de...
Patent number
6,071,666
Issue date
Jun 6, 2000
Sumitomo Bakelite Company, Ltd.
Takashi Hirano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photosensitive polyimide resin composition containing a stabilizer...
Patent number
5,756,260
Issue date
May 26, 1998
Sumitomo Bakelite Company Limited
Nobuyuki Sashida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process for producing photosensitive resin
Patent number
5,648,451
Issue date
Jul 15, 1997
Sumitomo Bakelite Company Limited
Nobuyuki Sashida
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Positive photo-sensitive resin composition comprising a photosensit...
Patent number
5,449,584
Issue date
Sep 12, 1995
Sumitomo Bakelite Company, Ltd.
Toshio Banba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Solvent-soluble polyimidesiloxane oligomer and process for producin...
Patent number
5,206,337
Issue date
Apr 27, 1993
Sumitomo Bakelite Company Limited
Toshiro Takeda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Positive photosensitive resin composition, cured film, protective f...
Publication number
20100196808
Publication date
Aug 5, 2010
SUMITOMO BAKELITE CO., LTD.
Ayako Mizushima
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...