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Masaaki Hagiwara
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Kokubunji, JP
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last 30 patents
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Patent Grant
Deinking agent and method of deinking through flotation using the d...
Patent number
5,840,157
Issue date
Nov 24, 1998
Lion Corporation
Masaaki Hagiwara
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Patent Grant
Deinking composition for flotation and deinking method
Patent number
5,417,808
Issue date
May 23, 1995
Lion Corporation
Yataka Okamoto
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE