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Yoshiaki Arai
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Mountain View, CA, US
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last 30 patents
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Patent Grant
Positive-working photoresist containing o-naphthoquinone diazide su...
Patent number
5,281,508
Issue date
Jan 25, 1994
Tokyo Ohka Kogyo Co., Ltd.
Hidekatsu Kohara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...