Patents by Inventor Ryota SAKAYAMA

Ryota SAKAYAMA 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).

  • Oil-in-water type emulsified cosmetic
    Patent number: 11696878
    Abstract: The oil-in-water type emulsified cosmetic includes: (A) a powder, (B) a water-soluble thickener, and (C) a surfactant, wherein the content of the component (A) is 1% to 30% by mass based on the total amount of the cosmetic, the component (A) contains (A1) an N-acyl acidic amino acid-treated powder, the component (C) contains (C1) a solid nonionic surfactant having a hydrophile-lipophile balance (HLB) value of less than 7 and (C2) a surfactant having an HLB value of 7 or greater, and the mass ratio [(C1):(C2)] between the component (C1) and the component (C2) is 1.5:1 to 30:1.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: July 11, 2023
    Assignee: TOKIWA CORPORATION
    Inventors: Daisuke Mitsui, Ryota Sakayama
  • OIL-IN-WATER TYPE EMULSIFIED COSMETIC
    Publication number: 20220175630
    Abstract: The oil-in-water type emulsified cosmetic includes: (A) a powder, (B) a water-soluble thickener, and (C) a surfactant, wherein the content of the component (A) is 1% to 30% by mass based on the total amount of the cosmetic, the component (A) contains (A1) an N-acyl acidic amino acid-treated powder, the component (C) contains (C1) a solid nonionic surfactant having a hydrophile-lipophile balance (HLB) value of less than 7 and (C2) a surfactant having an HLB value of 7 or greater, and the mass ratio [(C1):(C2)] between the component (C1) and the component (C2) is 1.5:1 to 30:1.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 9, 2022
    Applicant: TOKIWA CORPORATION
    Inventors: Daisuke MITSUI, Ryota SAKAYAMA