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Haruki Tsutsumi
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Yokohama, JP
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last 30 patents
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Patent Grant
Water-resistant surface coating formulations and paper coated there...
Patent number
5,587,246
Issue date
Dec 24, 1996
Mitsui Toatsu Chemicals, Inc.
Haruki Tsutsumi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Temperature history indicator and its manufacturing method
Patent number
4,931,420
Issue date
Jun 5, 1990
Mitsui Toatsu Chemicals, Inc.
Makoto Asano
G01 - MEASURING TESTING