Showa Oil Company, Ltd.

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing citric acid from hydrocarbons by fermentation
- Patent number 4,424,274
- Issue date Jan 3, 1984
- Showa Oil Company, Ltd.
- Takao Matsumoto
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Suppressing method of iso-citric acid formation in producing citric...
- Patent number 4,411,998
- Issue date Oct 25, 1983
- Showa Oil Company, Ltd.
- Takao Matsumoto
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Process for manufacturing citric acid from olefins by fermentation
- Patent number 4,180,626
- Issue date Dec 25, 1979
- Showa Oil Co., Ltd.
- Takeo Nagata
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Method of purifying a gas containing volatile organic materials
- Patent number 4,102,983
- Issue date Jul 25, 1978
- Showa Oil Co., Ltd.
- Osamu Yamase
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Conversion process of hydrocarbons
- Patent number 4,017,379
- Issue date Apr 12, 1977
- Showa Oil Company, Ltd.
- Tetsuya Iida
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL