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Kurashiki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for simultaneously producing lactone and aromatic carboxyli...
Patent number
5,278,321
Issue date
Jan 11, 1994
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for concurrently producing aryl formate and aromatic carbox...
Patent number
5,237,092
Issue date
Aug 17, 1993
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for purifying dimethyl-2,6-naphthalene dicarboxylate
Patent number
5,169,977
Issue date
Dec 8, 1992
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 2,6-napthalene dicarboxylic acid
Patent number
5,110,982
Issue date
May 5, 1992
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing highly pure 2,6-naphthalene dicarboxylic acid
Patent number
5,068,410
Issue date
Nov 26, 1991
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 2,6-naphthalene dicarboxylic acid
Patent number
4,886,906
Issue date
Dec 12, 1989
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing pyromellitic acid
Patent number
4,824,992
Issue date
Apr 25, 1989
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing aromatic polycarboxylic acid
Patent number
4,500,730
Issue date
Feb 19, 1985
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for crystallizing trimellitic acid
Patent number
4,490,554
Issue date
Dec 25, 1984
Mitsubishi Gas Chemical Company, Inc.
Toru Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing aromatic polycarboxylic acid
Patent number
4,346,232
Issue date
Aug 24, 1982
Mitsubishi Gas Chemical Company, Inc.
Makoto Komatsu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing terephthalic acid with high purity
Patent number
4,281,179
Issue date
Jul 28, 1981
Mitsubishi Gas Chemical Company, Inc.
Makoto Komatsu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing terephthalic acid of high purity
Patent number
4,268,690
Issue date
May 19, 1981
Mitsubishi Gas Chemical Company, Inc.
Makoto Komatsu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preventing blackening of phthalic acid
Patent number
4,214,100
Issue date
Jul 22, 1980
Mitsubishi Gas Chemical Company, Inc.
Makoto Komatsu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing terephthalic acid
Patent number
4,211,882
Issue date
Jul 8, 1980
Mitsubishi Gas Chemical Company, Inc.
Makoto Komatsu
C07 - ORGANIC CHEMISTRY