Patents by Inventor Yuhki Yanagisawa

Yuhki Yanagisawa 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).

  • Patent number: 7067469
    Abstract: A solid-shaped detergent comprising particles for detergent, wherein the particles have a dissolution rate of 90% or more, under conditions where the particles are supplied in water at 5° C.; stirred for 60 seconds under the stirring conditions that 1 g of the particles are supplied to a 1-L beaker having an inner diameter of 105 mm which is charged with 1 L of hard water having 71.2 mg CaCO3/L, wherein a molar ratio of Ca/Mg is 7/3, and stirred with a stirring bar of 35 mm in length and 8 mm in diameter at a rotational speed of 800 rpm; and filtered with a standard sieve having a sieve-opening of 74 ?m as defined by JIS Z 8801, wherein the dissolution rate of the particles is calculated by the Equation (1): Dissolution Rate (%)=[1?(T/S)]×100,??(1) wherein S is a weight (g) of the particles supplied; and T is a dry weight (g) of insoluble remnants of the particles remaining on the sieve when an aqueous solution prepared under the above stirring conditions is filtered with the sieve.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: June 27, 2006
    Assignee: Kao Corporation
    Inventors: Yuhki Yanagisawa, Nobuyoshi Yamaguchi, Shu Yamaguchi, Hitoshi Takaya, Hiroyuki Yamashita
  • Publication number: 20040127387
    Abstract: A solid-shaped detergent comprising particles for detergent, wherein the particles have a dissolution rate of 90% or more, under conditions where the particles are supplied in water at 5° C.; stirred for 60 seconds under the stirring conditions that 1 g of the particles are supplied to a 1-L beaker having an inner diameter of 105 mm which is charged with 1 L of hard water having 71.
    Type: Application
    Filed: September 15, 2003
    Publication date: July 1, 2004
    Applicant: Kao Corporation
    Inventors: Yuhki Yanagisawa, Nobuyoshi Yamaguchi, Shu Yamaguchi, Hitoshi Takaya, Hiroyuki Yamashita
  • Patent number: 6645931
    Abstract: A solid-shaped detergent comprising particles for detergent, wherein the particles have a dissolution rate of 90% or more, under conditions where the particles are supplied in water at 5° C.; stirred for 60 seconds under the stirring conditions that 1 g of the particles are supplied to a 1-L beaker having an inner diameter of 105 mm which is charged with 1 L of hard, water having 71.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: November 11, 2003
    Assignee: Kao Corporation
    Inventors: Yuhki Yanagisawa, Nobuyoshi Yamaguchi, Shu Yamaguchi, Hitoshi Takaya, Hiroyuki Yamashita