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Hiroshi Matsumura
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Sayama, JP
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last 30 patents
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Patent Grant
Process for isolating methacrylic acid by extraction
Patent number
4,533,750
Issue date
Aug 6, 1985
Mitsubishi Rayon Co. Ltd.
Hiroshi Matsumura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of methacrylic acid esters
Patent number
4,435,594
Issue date
Mar 6, 1984
Minemet Recherche
Hiroshi Matsumura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of tertiary butyl alcohol
Patent number
4,360,406
Issue date
Nov 23, 1982
Mitsubishi Rayon Co., Ltd.
Minoru Ikeda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of separating and purifying methacrylic acid
Patent number
4,142,058
Issue date
Feb 27, 1979
Mitsubishi Rayon Co., Ltd.
Hiroshi Matsumura
C07 - ORGANIC CHEMISTRY