Patents by Inventor Shigeru Nagao

Shigeru Nagao 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).

  • Liquid amine composition for emulsifiers for bitumen
    Patent number: 6048905
    Abstract: The present invention provides a liquid amine composition for an emulsifier for bitumen which can impart, to a bituminous emulsion, more excellent emulsifying stability and adhesive properties to aggregates than conventional products. The liquid amine composition for the emulsifier for bitumen of the present invention comprises (1) 5 to 70% by weight a monoamine having an aliphatic hydrocarbyl group of 8 to 22 carbon atoms, (2) 20 to 80% by weight of a polyamine having an aliphatic hydrocarbyl group of 8 to 22 carbon atoms, and (3) 10 to 75% by weight of an organic acid of 4 to 18 carbon atoms.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: April 11, 2000
    Assignee: Kao Corporation
    Inventors: Katsuhiko Asamori, Shigeru Nagao, Ryoichi Tamaki, Takao Taniguchi, Keiichiro Tomioka, Kouji Koyanagi
  • Dyeing assistant composition for cellulose fibers
    Patent number: 4906248
    Abstract: Cellulose fibers can be effectively dyed with an assistant composition comprising (a) a polymer or copolymer of maleic acid, acrylic acid, methacylic acid or a salt thereof and (b) a sulfonate of a monocyclic or polycyclic aromatic compound or a condensate thereof with an aliphatic aldehyde.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: March 6, 1990
    Assignee: Kao Corporation
    Inventors: Naoki Kyochika, Shigeru Nagao
  • Detergent composition for cleaning dyeing machine
    Patent number: 4732697
    Abstract: A detergent composition, suitable to clean a dyeing machine, comprises(a) a water-soluble or water-dispersible polymer of an unsaturated carboxylic acid monomer or a polymerizable derivative thereof and(b-1) an alkylene oxide adduct of an aliphatic compound or an aromatic compound, (b-2) a sulfonate of a monocyclic compound or a condensed polycyclic compound or (b-3) an aliphatic aldehyde condensate of said sulfonate.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: March 22, 1988
    Assignee: Kao Corporation
    Inventors: Naoki Kyochika, Shigeru Nagao
  • Agent for improving processability of cellulose fibers: acid polymer salts for improved scouring
    Patent number: 4595394
    Abstract: A fiber processability-improving agent comprising a salt of (meth-)acrylic acid and/or maleic acid (co-)polymer is provided. This agent has an average molecular weight of up to 10,000 and is useful for improving dyeability and scouring properties of fibers to realize a level dyeing and an excellent hand.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: June 17, 1986
    Assignee: Kao Corporation
    Inventors: Masakatsu Okamoto, Shigeru Nagao, Kazuhisa Yagi
  • Dyeing assistant for printing
    Patent number: 4215992
    Abstract: A dyeing assistant for use in printing color on hydrophobic fibers which comprises one or more esters of aliphatic polyhydric alcohols having 2-8 hydroxyl groups with fatty acids of 6-22 carbon atoms or ethylene oxide adducts thereof (component I), and one or more ethylene oxide adducts of aliphatic monoamines or diamines of 8-40 carbon atoms or quaternary ammonium salts thereof (component II).
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: August 5, 1980
    Assignee: Kao Soap Co., Ltd.
    Inventors: Toshio Sato, Shigeru Nagao