Patents by Inventor Yamato Saitou

Yamato Saitou 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).

  • Body Surface Protecting Composition
    Publication number: 20100215603
    Abstract: A body surface protecting composition, comprising at least one type of multi-chain multiple hydrophilic group-type compound having two or more hydrophobic groups and two or more hydrophilic groups in the molecule, which has an excellent effect of accelerating the recovery of the barrier function of skin and hair and preventing degradation of that function.
    Type: Application
    Filed: June 13, 2006
    Publication date: August 26, 2010
    Inventors: Kentarou Kanda, Yokio Yamawaki, Yamato Saitou
  • NOVEL ACYL GROUP-CONTAINING COMPOSITION
    Publication number: 20090093388
    Abstract: According to the present invention, a process is provided for producing an acyl group-containing composition that includes a step of reacting a long chain N-acyl acidic amino acid anhydride with one or more compounds which have, per molecule, m functional groups of one kind or more selected from the group consisting of hydroxyl, amino and thiol groups in an aqueous solvent and/or a mixed solvent of water and an organic solvent (reaction step). The process makes it possible to produce an acyl group-containing composition that is free from coloration under moderate conditions.
    Type: Application
    Filed: December 5, 2008
    Publication date: April 9, 2009
    Inventors: Yukio YAMAWAKI, Takao Kitamura, Yamato Saitou
  • Composition containing acyl group
    Patent number: 7488841
    Abstract: According to the present invention, a process is provided for producing an acyl group-containing composition that includes a step of reacting a long chain N-acyl acidic amino acid anhydride with one or more compounds which have, per molecule, m functional groups of one kind or more selected from the group consisting of hydroxyl, amino and thiol groups in an aqueous solvent and/or a mixed solvent of water and an organic solvent (reaction step). The process makes it possible to produce an acyl group-containing composition that is free from coloration under moderate conditions.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: February 10, 2009
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yukio Yamawaki, Takao Kitamura, Yamato Saitou
  • Novel composition containing acyl group
    Publication number: 20050265951
    Abstract: According to the present invention, a process is provided for producing an acyl group-containing composition that includes a step of reacting a long chain N-acyl acidic amino acid anhydride with one or more compounds which have, per molecule, m functional groups of one kind or more selected from the group consisting of hydroxyl, amino and thiol groups in an aqueous solvent and/or a mixed solvent of water and an organic solvent (reaction step). The process makes it possible to produce an acyl group-containing composition that is free from coloration under moderate conditions.
    Type: Application
    Filed: August 26, 2003
    Publication date: December 1, 2005
    Inventors: Yukio Yamawaki, Takao Kitamura, Yamato Saitou