Patents by Inventor Teruhito Sotogoshi

Teruhito Sotogoshi 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).

  • Photopolymerizable composition for color filter and color filter prepared therefrom
    Patent number: 5362603
    Abstract: The present invention relates to a photopolymerizable composition containing a photopolymerizable compound having at least one ethylenically unsaturated double bond, a photopolymerization initiator, a pigment and optionally another resin, wherein said photopolymerizable compound contained therein comprises not less than 60%.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: November 8, 1994
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Yoshinori Katoh, Naoko Ichinose, Teruhito Sotogoshi
  • Water-insoluble black pigment
    Patent number: 4941923
    Abstract: A water-insoluble black pigment produced by reacting C. I. Solubilized Sulphur Black 1 with a salt-forming agent selected from the group consisting of inorganic acid salts of alkylamine, alkoxyalkylamine, alkanolamine, carboxyalkylamine, alkylcarboxamide, allylamine, amide of unsaturated carboxylic acid, cyclic amine, cycloalkylamine, oxacycloalkylamine, morpholine derivative, arylamine, aralkylamine, pyridine derivative, quinoline, phthalimide, DL-.alpha.-amino-.epsilon.-caprolactam and .epsilon.-aminocaprolactam, and ammonium salt of the formula (1): ##STR1## wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4 each represent an alkyl or phenyl group and X- represents an anionic group.The water-insoluble black pigment is usable as a colorant for printing ink, ink for jet printers, dot printer ribbon, and melt-transfer type printer, a charge-regulator for toner used on electrostatic recording system, a laser marking agent, a colorant for resin, an infrared absorber and the like.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: July 17, 1990
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Teruhito Sotogoshi, Yukio Ishizaka, Katsunori Nakamura
  • 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