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Mitsutaka Tanaka
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Sanda, JP
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last 30 patents
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Patent Grant
Production of L-ascorbic acid
Patent number
5,902,885
Issue date
May 11, 1999
Takeda Chemical Industries, Ltd.
Kunio Takanohashi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing vitamin A derivatives
Patent number
5,424,478
Issue date
Jun 13, 1995
Takeda Chemical Industries, Ltd.
Mitsutaka Tanaka
C07 - ORGANIC CHEMISTRY
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Patent Grant
Ascorbic acid ester
Patent number
4,845,246
Issue date
Jul 4, 1989
Takeda Chemical Industries, Ltd.
Kunio Takanohashi
C07 - ORGANIC CHEMISTRY
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Patent Grant
2-Alkyl-4-amino-5-aminomethylpyrimidines
Patent number
4,794,182
Issue date
Dec 27, 1988
Takeda Chemical Industries, Ltd.
Kunio Takanohashi
C07 - ORGANIC CHEMISTRY