Shinzaburo Masaki

Person

Takarazuka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for producing 5-amino-3-methylpyrazole
- Patent number 5,384,409
- Issue date Jan 24, 1995
- Sumitomo Chemical Company, Limited
- Kenji Saito
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for production of N-substituted carbazoles
- Patent number 5,254,700
- Issue date Oct 19, 1993
- Sumitomo Chemical Company, Limited
- Masashi Kamitamari
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Treatment of hydroperoxide mixture
- Patent number 5,166,451
- Issue date Nov 24, 1992
- Sumitomo Chemical Company, Limited
- Akira Takeshita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing hydroxy-containing alkylated aromatic compounds
- Patent number RE34076
- Issue date Sep 22, 1992
- Sumitomo Chemical Company Limited
- Akira Takeshita
- 568 - Organic compounds
Information Patent Grant
Method for producing hydroxy-containing alkylated aromatic compounds
- Patent number 4,912,264
- Issue date Mar 27, 1990
- Sumitomo Chemical Company, Limited
- Akira Takeshita
- C07 - ORGANIC CHEMISTRY
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 aminophenyl-.beta.-hydroxyethylsulfone
- Patent number 4,612,394
- Issue date Sep 16, 1986
- Sumitomo Chemical Company, Limited
- Norio Kotera
- C07 - ORGANIC CHEMISTRY
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

Shinzaburo Masaki

Person

Patents Grantslast 30 patents

Process for producing 5-amino-3-methylpyrazole

Process for production of N-substituted carbazoles

Treatment of hydroperoxide mixture

Method for producing hydroxy-containing alkylated aromatic compounds

Method for producing hydroxy-containing alkylated aromatic compounds

Method for purifying 1-aminoanthraquinone

Process for producing aminophenyl-.beta.-hydroxyethylsulfone

Method for producing 1-nitroanthraquinone