Patents by Inventor Kisuke Aoki

Kisuke Aoki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reactive disazo monohalogenotriazine dyestuffs
    Patent number: 4054559
    Abstract: Reactive disazo dyestuffs of the following formula are disclosed. ##STR1## or --NHR wherein w.sub.1, w.sub.2, w.sub.3, and w.sub.4 represent hydrogen or methyl; Q represents --SO.sub.2 -- or --CO--; k, r, l and q represent 1 or 0; R represents hydrogen; --COCH.sub.3 ; ##STR2## which may be substituted by methyl or chloro; phenyl which may be substituted by sulfo or carboxy; or --CH.sub.2 CH.sub.2 OH. Hal represents chloro or bromo. X represents amino; mono- or di-alkylamino having from 1 to 3 carbon atoms; mono- or di-hydroxyalkylamino having from 1 to 3 carbon atoms; anilino which may be substituted by a sulfo group, carboxy group, methyl, ethyl, nitro, methoxy, ethoxy, acetylamino, sulfamoyl, .beta.-sulfatoethylsulfonyl, cyano, chloro, or bromo; N-methylanilino; carboxymethylamino; .beta.-sulfoethylamino; N-(.beta.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: October 18, 1977
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Kisuke Aoki, Teruhito Sotogoshi, Masahiro Hiraki