Patents by Inventor Yuka YAMAWAKI

Yuka YAMAWAKI 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).

  • Publication number: 20220008306
    Abstract: A water-based liquid cosmetic containing diethylhexyl sodium sulfosuccinate, an inorganic coloring pigment, a water-soluble dispersant, and a film-forming polymer emulsion, wherein a content of diethylhexyl sodium sulfosuccinate is 0.01 to 1 mass % and a content of the inorganic coloring pigment is 3 to 20 mass %, based on a total amount of the cosmetic, and wherein the inorganic coloring pigment contains carbon black.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventor: Yuka YAMAWAKI
  • Patent number: 11160740
    Abstract: A water-based liquid cosmetic containing diethylhexyl sodium sulfosuccinate, an inorganic coloring pigment, a water-soluble dispersant, and a film-forming polymer emulsion, wherein a content of diethylhexyl sodium sulfosuccinate is 0.01 to 1 mass % and a content of the inorganic coloring pigment is 3 to 20 mass %, based on a total amount of the cosmetic, and wherein the inorganic coloring pigment contains carbon black.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 2, 2021
    Inventor: Yuka Yamawaki
  • Publication number: 20210251854
    Abstract: The oil-in-water type solid cosmetic material contains a powder component, a gelling agent, a water-soluble thickener, water, and an oiling agent, wherein a plate-like powder, which has an average particle size of 10 to 200 ?m and has an aspect ratio of 40 to 200, is contained, as the powder component, in an amount of 3% to 30% by mass based on a total amount of the cosmetic material; and agar and/or gellan gum is contained as the gelling agent.
    Type: Application
    Filed: February 9, 2021
    Publication date: August 19, 2021
    Applicant: TOKIWA CORPORATION
    Inventors: Yuka YAMAWAKI, Natsuko ISHIDA
  • Publication number: 20200129401
    Abstract: A water-based liquid cosmetic containing diethylhexyl sodium sulfosuccinate, an inorganic coloring pigment, a water-soluble dispersant, and a film-forming polymer emulsion, wherein a content of diethylhexyl sodium sulfosuccinate is 0.01 to 1 mass % and a content of the inorganic coloring pigment is 3 to 20 mass %, based on a total amount of the cosmetic, and wherein the inorganic coloring pigment contains carbon black.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 30, 2020
    Applicant: TOKIWA CORPORATION
    Inventor: Yuka YAMAWAKI
  • Publication number: 20190314252
    Abstract: An oil-in-water emulsion cosmetic for eyelashes includes a water-soluble film forming agent, a water-soluble thickener, a powder, and a surfactant, in which the water-soluble thickener includes at least one selected from the group consisting of a cellulose-based thickener and a polysaccharide-based thickener, the powder includes carbon black, and the surfactant includes a first non-ionic surfactant having a hydrophilic-lipophilic balance of 10 to 17 and a second non-ionic surfactant having a hydrophilic-lipophilic balance of less than 8.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 17, 2019
    Applicant: TOKIWA CORPORATION
    Inventors: Yuko IWATANI, Yuka YAMAWAKI
  • Patent number: 9526688
    Abstract: [Object] Provided is a water-based liquid cosmetic which exhibits excellent usability such as density of drawn line and convenience of drawing as well as can discharge a sufficient amount of liquid even when being formed into an automatic pen type, and also can form a cosmetic film exhibiting both lasting properties and washability. [Solving Means] The water-based liquid cosmetic according to the present invention is a water-based liquid cosmetic which includes a film-forming agent, a coloring pigment, and water, in which a sulfonated polyester (A) and a polymer (B) containing an alkyl (meth)acrylate monomer as a constitutional unit are contained at from 2 to 11% by mass and from 2 to 18% by mass with respect to a total amount of the cosmetic, respectively, as the film-forming agent.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: December 27, 2016
    Assignee: TOKIWA CORPORATION
    Inventor: Yuka Yamawaki
  • Publication number: 20160199285
    Abstract: [Object] Provided is a water-based liquid cosmetic which exhibits excellent usability such as density of drawn line and convenience of drawing as well as can discharge a sufficient amount of liquid even when being formed into an automatic pen type, and also can form a cosmetic film exhibiting both lasting properties and washability. [Solving Means] The water-based liquid cosmetic according to the present invention is a water-based liquid cosmetic which includes a film-forming agent, a coloring pigment, and water, in which a sulfonated polyester (A) and a polymer (B) containing an alkyl (meth)acrylate monomer as a constitutional unit are contained at from 2 to 11% by mass and from 2 to 18% by mass with respect to a total amount of the cosmetic, respectively, as the film-forming agent.
    Type: Application
    Filed: December 7, 2015
    Publication date: July 14, 2016
    Inventor: Yuka YAMAWAKI