Akira Fukasawa

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Toyonaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for purifying 1-aminoanthraquinone
- Patent number 4,695,407
- Issue date Sep 22, 1987
- Sumitomo Chemical Company, Limited
- Norio Kotera
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing aminoanthraquinone
- Patent number 4,407,756
- Issue date Oct 4, 1983
- Sumitomo Chemical Company, Limited
- Akira Fukasawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for producing 1-nitroanthraquinone
- Patent number 4,289,706
- Issue date Sep 15, 1981
- Sumitomo Chemical Company, Limited
- Akira Fukasawa
- C07 - ORGANIC CHEMISTRY