Yasushi Fujii

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Himeji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparation of 2-substituted 1,4-naphthoquinone
- Patent number 5,329,026
- Issue date Jul 12, 1994
- Nippon Shokubai Kagaku Kogyo Co., Ltd.
- Noboru Sugishima
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 1-aminoanthraquinones
- Patent number 5,213,665
- Issue date May 25, 1993
- Nippon Shokubai Kagaku Kogyo, Co., Ltd.
- Noboru Sugishima
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Process for producing 1-aminoanthraquinones
- Patent number 5,149,848
- Issue date Sep 22, 1992
- Nippon Shokubai Kagaku Kogyo Co., Ltd.
- Noboru Sugishima
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Process for production of 1-aminoanthraquinone
- Patent number 4,840,749
- Issue date Jun 20, 1989
- Nippon Shokubai Kagaku Kogyo Co., Ltd.
- Noriaki Ikeda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...