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Sakae Kawaguchi
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Gunma, JP
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last 30 patents
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Patent Grant
Frame-supported pellicle for dustproof protection of photomask
Patent number
5,470,621
Issue date
Nov 28, 1995
Shin-Etsu Chemical Co., Ltd.
Meguru Kashida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Frame-supported pellicle for dustproof protection of photomask
Patent number
5,419,972
Issue date
May 30, 1995
Shin-Etsu Chemical Co., Ltd.
Sakae Kawaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY