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Takashi Tokuue
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Yokohama, JA
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last 30 patents
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Patent Grant
Process for quench hardening with polyacrylate quenching medium
Patent number
3,996,076
Issue date
Dec 7, 1976
Toho Chemical Industry Co., Ltd.
Takashi Tokuue
C21 - METALLURGY OF IRON
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Patent Grant
Aqueous quenching medium containing salts of polymeric materials
Patent number
3,939,016
Issue date
Feb 17, 1976
Toho Chemical Industry Co., Ltd.
Takashi Tokuue
C21 - METALLURGY OF IRON