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Yoshiko Fujiyama
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Yokohama, JP
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last 30 patents
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Patent Grant
Process for preparing bisphenols using pyridinealkanethiol derivati...
Patent number
4,478,956
Issue date
Oct 23, 1984
Mitsubishi Chemical Industries Limited
Takao Maki
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for preparing bisphenols
Patent number
4,423,252
Issue date
Dec 27, 1983
Mitsubishi Chemical Industries Limited
Takao Maki
C07 - ORGANIC CHEMISTRY