Patents by Inventor Yasuko Nagamatsu

Yasuko Nagamatsu 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: 11191710
    Abstract: The invention relates to a composition, in particular a cosmetic composition, characterized in that it comprises:—at least one monoglyceride,—at least one tartaric ester of monoglycerides based on C12-C22,—at least one UV filter,—at least one HLB surfactant greater than 10, and—at least one hydrophilic gelling agent wherein the content of said one or more surfactant(s) having a HLB greater than 10 is comprised between 0.2% and 10% by weight, based on the total weight of the composition.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: December 7, 2021
    Assignee: L'OREAL
    Inventors: Sandrine Olivier-Mabilais, Yasuko Nagamatsu
  • Patent number: 10596083
    Abstract: The present invention relates to novel composite particles based on mineral UV-screening agent and perlite. The present invention also relates to a composition comprising, in a cosmetically acceptable medium, at least composite particles for screening out UV radiation, based on mineral UV-screening agent and perlite. The invention also relates to a cosmetic process for caring for and/or making up human keratin materials, especially bodily or facial skin or the hair, comprising at least the application, to the surface of the keratin material, of at least one composition as defined previously. The invention also relates to a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the colour and/or uniformity of the complexion, comprising the application, to the surface of the keratin material, of at least one composition as defined previously.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 24, 2020
    Assignee: L'OREAL
    Inventors: Yasuko Nagamatsu, Didier Candau, Benjamin Keufer, Chong Wei Zhang
  • Patent number: 10272021
    Abstract: A subject matter of the present invention is a composition comprising: a) at least multilayer spherical composite particles comprising i) a core comprising at least one material A having a refractive index ranging from 1.3 to 1.8; and ii) at least one layer covering said core, comprising at least one material B having a refractive index ranging from 1.9 to 3.1; and iii) optionally at least one second layer covering the material B, comprising at least one material C having a refractive index ranging from 1.3 to 1.8; said composite particles being present in an amount less than 28.0% by weight relative to the total weight of the composition; and b) at least one UV-screening agent. This composition is for topical use and is more particularly intended for the photoprotection of the skin and/or hair against ultraviolet (UV) radiation.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: April 30, 2019
    Assignee: L'OREAL
    Inventors: Yasuko Nagamatsu, Didier Candau, Angelina Roudot, Yannick Jolly
  • Publication number: 20190000738
    Abstract: The invention relates to a composition, in particular a cosmetic composition, characterized in that it comprises:—at least one monoglyceride,—at least one tartaric ester of monoglycerides based on C12-C22,—at least one UV filter,—at least one HLB surfactant greater than 10, and—at least one hydrophilic gelling agent wherein the content of said one or more surfactant(s) having a HLB greater than 10 is comprised between 0.2% and 10% by weight, based on the total weight of the composition.
    Type: Application
    Filed: December 23, 2016
    Publication date: January 3, 2019
    Inventors: Sandrine OLIVIER-MABILLAIS, Yasuko NAGAMATSU
  • Patent number: 9913782
    Abstract: The present invention relates to a composition comprising, in a cosmetically acceptable medium: a) composite particles with a mean size of greater than 0.1 ?m, containing a matrix comprising i) at least one organic material and/or at least one mineral material and ii) at least titanium dioxide; and b) hydrophobic silica aerogel particles. The invention also relates to a cosmetic process for caring for and/or making up human keratin materials, especially bodily or facial skin or the hair, comprising at least the application, to the surface of the keratin material, of a composition as defined previously. The invention also relates to a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the color and/or uniformity of the complexion, comprising the application, to the surface of the keratin material, of a composition as defined previously.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: March 13, 2018
    Assignee: L'OREAL
    Inventors: Yasuko Nagamatsu, Maud Willien, Didier Candau
  • Publication number: 20170304160
    Abstract: A subject matter of the present invention is a composition comprising: a) at least multilayer spherical composite particles comprising i) a core comprising at least one material A having a refractive index ranging from 1.3 to 1.8; and ii) at least one layer covering said core, comprising at least one material B having a refractive index ranging from 1.9 to 3.1; and iii) optionally at least one second layer covering the material B, comprising at least one material C having a refractive index ranging from 1.3 to 1.8; said composite particles being present in an amount less than 28.0% by weight relative to the total weight of the composition; and b) at least one UV-screening agent. This composition is for topical use and is more particularly intended for the photoprotection of the skin and/or hair against ultraviolet (UV) radiation.
    Type: Application
    Filed: September 16, 2015
    Publication date: October 26, 2017
    Inventors: Yasuko NAGAMATSU, Didier CANDAU, Angelina ROUDOT, Yannick JOLLY
  • Publication number: 20160106642
    Abstract: The present invention relates to novel composite particles based on mineral UV-screening agent and perlite. The present invention also relates to a composition comprising, in a cosmetically acceptable medium, at least composite particles for screening out UV radiation, based on mineral UV-screening agent and perlite. The invention also relates to a cosmetic process for caring for and/or making up human keratin materials, especially bodily or facial skin or the hair, comprising at least the application, to the surface of the keratin material, of at least one composition as defined previously. The invention also relates to a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the colour and/or uniformity of the complexion, comprising the application, to the surface of the keratin material, of at least one composition as defined previously.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 21, 2016
    Inventors: Yasuko Nagamatsu, Didier Candau, Benjamin Keufer, Chong Wei Zhang
  • Publication number: 20160030304
    Abstract: The present invention relates to a composition comprising, in a cosmetically acceptable medium: a) composite particles with a mean size of greater than 0.1 ?m, containing a matrix comprising i) at least one organic material and/or at least one mineral material and ii) at least titanium dioxide; and b) hydrophobic silica aerogel particles. The invention also relates to a cosmetic process for caring for and/or making up human keratin materials, especially bodily or facial skin or the hair, comprising at least the application, to the surface of the keratin material, of a composition as defined previously. The invention also relates to a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the colour and/or uniformity of the complexion, comprising the application, to the surface of the keratin material, of a composition as defined previously.
    Type: Application
    Filed: March 20, 2014
    Publication date: February 4, 2016
    Inventors: Yasuko Nagamatsu, Maud Willien, Didier Candau