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Sachiko Tamura
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Positive photoresist composition and process for forming resist pat...
Patent number
6,379,859
Issue date
Apr 30, 2002
Tokyo Ohka Kogyo Co., Ltd.
Takako Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positive photoresist compositions and multilayer resist materials u...
Patent number
6,127,087
Issue date
Oct 3, 2000
Tokyo Ohka Kogyo Co., Ltd.
Miki Kobayashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
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Patent Application
Positive photoresist composition and process for forming resist pat...
Publication number
20020119390
Publication date
Aug 29, 2002
Tokyo Ohka Kogyo Co., Ltd.
Takako Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
POSITIVE PHOTORESIST COMPOSITION AND PROCESS FOR FORMING RESIST PAT...
Publication number
20020012865
Publication date
Jan 31, 2002
TAKAKO SUZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY