Patents by Inventor Emi Nagashima

Emi Nagashima 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).

  • Hair-treatment composition, bleaching composition and hair color tone modifier composition
    Patent number: 5196029
    Abstract: The present invention provides the following hair-treatment composition, bleaching composition and hair color tone modifier composition:a hair-treatment composition containing:(1) a ferrous salt, and(2) a nonreducing organic chelate-forming compound capable of forming a chelate compound together with a ferrous ion,and having a pH value of from 3 to 6, wherein the stability constant (K.sub.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: March 23, 1993
    Assignee: KAO Corporation
    Inventors: Jiro Kawase, Kazuo Ukaji, Emi Nagashima
  • Hair treatment composition, bleaching composition and hair color tone modifier composition
    Patent number: 5064441
    Abstract: The present invention provides the following hair-treatment composition, bleaching composition and hair color tone modifier composition:a hair-treatment composition containing:(1) a ferrous salt, and(2) a nonreducing organic chelate-forming compound capable of forming a chelate compound together with a ferrous ion,and having a pH value of from 3 to 6, wherein the stability constant (K.sub.
    Type: Grant
    Filed: April 19, 1990
    Date of Patent: November 12, 1991
    Assignee: Kao Corporation
    Inventors: Jiro Kawase, Kazuo Ukaji, Emi Nagashima