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Yoshie Hirakouchi
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Chiba, 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
Information
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
Information
Patent Grant
Deinking agent for reclaiming waste paper
Patent number
5,346,543
Issue date
Sep 13, 1994
Lion Corporation
Yoshie Hirakouchi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Aqueous high concentration surfactant slurry containing an olefin s...
Patent number
4,715,991
Issue date
Dec 29, 1987
Lion Corporation
Yoshie Hirakouchi
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...