Patents by Inventor TETSURO YONEZAWA

TETSURO YONEZAWA 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: 11696886
    Abstract: Provided is a cosmetic having a unique soft and springy feeling in use, capable of stably formulating therein a UV protector, and providing a light feeling in use such that the cosmetic is separated into pieces when applied to the skin. The present invention relates to a cosmetic characterized by comprising (A) a (meth)acrylic acid/an alkyl (meth)acrylate/a (meth)acrylic acid-POE monoalkyl ether ester copolymer, (B) a UV protector, (C) a nonionic surfactant, and (D) a higher alcohol.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: July 11, 2023
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Daiki Arai, Hideki Shimizu, Tetsuro Yonezawa
  • Patent number: 11033479
    Abstract: The present invention provides an ?-gel forming composition and an ?-gel composition that uses an ?-gel formation composition that is highly stable and that does not become colored or deposit crystals, etc. over time. An ?-gel composition includes (A) 25-50 mass % of one or more higher aliphatic alcohol and/or higher fatty acid has 16 or more carbons, (B) 40-70 mass % of a specific polyoxyethylene sterol ether, and (C) 5-20 mass % of a specific polyoxyethylene dialkyl ester and/or ether. The ?-gel composition is generated by adding water.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: June 15, 2021
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Reiji Miyahara, Tetsuro Yonezawa, Takashi Oka, Makoto Uyama, Saori Tanabe
  • Publication number: 20210128445
    Abstract: Provided is a cosmetic having a unique soft and springy feeling in use, capable of stably formulating therein a UV protector, and providing a light feeling in use such that the cosmetic is separated into pieces when applied to the skin. The present invention relates to a cosmetic characterized by comprising (A) a (meth)acrylic acid/an alkyl (meth)acrylate/a (meth)acrylic acid-POE monoalkyl ether ester copolymer, (B) a UV protector, (C) a nonionic surfactant, and (D) a higher alcohol.
    Type: Application
    Filed: May 30, 2018
    Publication date: May 6, 2021
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: DAIKI ARAI, Hideki SHIMIZU, Tetsuro YONEZAWA
  • Publication number: 20210100732
    Abstract: An object to be solved by the present invention is to provide a composition for forming ?-gel which has a high stability with no color development or crystal deposition over time, and a ?-gel composition using the same. The ?-gel composition comprises: (A) 25 to 50% by mass of 1 or more higher aliphatic alcohols having 16 or more carbon atoms and/or higher fatty acids; (B) 40 to 70% by mass of specific polyoxyethylene sterol ether, and (C) 5 to 20% by mass of specific polyoxyethylene dialkyl ester and/or ether, and is generated by adding water.
    Type: Application
    Filed: January 6, 2017
    Publication date: April 8, 2021
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: REIJI MIYAHARA, Tetsuro YONEZAWA, Takashi OKA, Makoto UYAMA, Saori TANABE
  • Patent number: 10898426
    Abstract: The present invention addresses the problem of providing an ?-gel formation composition and an ?-gel composition that uses the ?-gel formation composition, wherein said compositions are highly stable, do not deposit crystals, become more viscous over time, and, when used in a preparations for external use, are refreshing during application and have high skin-moisturizing action after application. A gel composition that includes a polyoxyethylene dialkyl ester and/or a polyoxyethylene dialkyl ether, a polyoxyethylene alkyl ester and/or a polyoxyethylene alkyl ether, and, preferably, a polyoxyethylene sterol ether and water.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: January 26, 2021
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Reiji Miyahara, Takashi Oka, Makoto Uyama, Saori Tanabe, Tetsuro Yonezawa, Miho Yajima, Noriko Ohira, Saori Nishikawa
  • Patent number: 10835460
    Abstract: The present invention provides an intermediate composition enabling to prepare easily and steadily an ?-gel-containing O/W emulsion cosmetic that has a very small viscosity change over time and is excellent in emulsion stability, without using a cooling device that has a heavy burden on cost and the environment, and a production method thereof. An ?-gel intermediate composition consisting of (A) 20 to 80 mass % of a mixture containing one or more higher alcohols having 16 or more carbon atoms and a nonionic surfactant with an HLB value of 7 to 17 in the mole ratio of 3:2 to 5:1, and (B) 20 to 80 mass % of a mixture containing one or more water-soluble solvents having the IOB value of 1.5 to 3.5 and water in the mass ratio of 4:6 to 8:2, and wherein the composition is a liquid consisting of a bicontinuous microemulsion phase or a lamellar liquid crystal-dispersed bicontinuous microemulsion phase at 50 to 80° C. and a solid at room temperature.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: November 17, 2020
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Reiji Miyahara, Tetsuro Yonezawa, Makiyo Miyakawa
  • Publication number: 20190350833
    Abstract: The present invention addresses the problem of providing an ?-gel formation composition and an ?-gel composition that uses the ?-gel formation composition, wherein said compositions are highly stable, do not deposit crystals, become more viscous over time, and, when used in a preparations for external use, are refreshing during application and have high skin-moisturizing action after application. A gel composition that includes a polyoxyethylene dialkyl ester and/or a polyoxyethylene dialkyl ether, a polyoxyethylene alkyl ester and/or a polyoxyethylene alkyl ether, and, preferably, a polyoxyethylene sterol ether and water.
    Type: Application
    Filed: July 12, 2019
    Publication date: November 21, 2019
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: REIJI MIYAHARA, Takashi Oka, Makoto Uyama, Saori Tanabe, Tetsuro Yonezawa, Miho Yajima, Noriko Ohira, Saori Nishikawa
  • Patent number: 10231909
    Abstract: The present invention provides an intermediate composition enabling to prepare easily and steadily an ?-gel-containing O/W emulsion cosmetic that has a very small viscosity change over time and is excellent in emulsion stability, without using a cooling device that has a heavy burden on cost and the environment, and a production method thereof. An ?-gel intermediate composition consisting of (A) 20 to 80 mass % of a mixture containing one or more higher alcohols having 16 or more carbon atoms and an anionic surfactant in the mole ratio of 3:2 to 5:1, and (B) 20 to 80 mass % of a mixture containing one or more water-soluble solvents having the IOB value of 1.5 to 3.5 and water in the mass ratio of 5:5 to 8:2, and wherein the composition is a liquid consisting of a bicontinuous microemulsion phase or a lamellar liquid crystal-dispersed bicontinuous microemulsion phase at 65 to 85° C. and a solid at room temperature.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 19, 2019
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Reiji Miyahara, Tetsuro Yonezawa, Kenji Kurokawa
  • Publication number: 20190029932
    Abstract: The present invention addresses the problem of providing a ripple-phase-containing composition, an ?-gel formation composition, and an ?-gel composition that uses the ?-gel formation composition, wherein said compositions are highly stable, do not deposit crystals, become more viscous over time, and, when used in a preparations for external use, are refreshing during application and have high skin-moisturizing action after application. A gel composition that includes a polyoxyethylene dialkyl ester and/or a polyoxyethylene dialkyl ether, a polyoxyethylene alkyl ester and/or a polyoxyethylene alkyl ether, and, preferably, a polyoxyethylene sterol ether and water.
    Type: Application
    Filed: January 27, 2017
    Publication date: January 31, 2019
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Reiji MIYAHARA, Takashi OKA, Makoto UYAMA, Saori TANABE, Tetsuro YONEZAWA, Miho YAJIMA, Noriko OHIRA, Saori NISHIKAWA
  • Patent number: 9861561
    Abstract: The present invention provides an aqueous composition in which vesicles and oil drops are stably coexistent. The aqueous composition of the present invention is characterized by containing (a) an amphiphilic compound, (b) water, and (c) oil, wherein vesicles formed with component (a) and oil drops containing component (c) are present in component (b).
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: January 9, 2018
    Assignee: SHISEIDO COMPANY, LTD.
    Inventor: Tetsuro Yonezawa
  • Publication number: 20170105909
    Abstract: The present invention provides an intermediate composition enabling to prepare easily and steadily an ?-gel-containing O/W emulsion cosmetic that has a very small viscosity change over time and is excellent in emulsion stability, without using a cooling device that has a heavy burden on cost and the environment, and a production method thereof. An ?-gel intermediate composition consisting of (A) 20 to 80 mass % of a mixture containing one or more higher alcohols having 16 or more carbon atoms and an anionic surfactant in the mole ratio of 3:2 to 5:1, and (B) 20 to 80 mass % of a mixture containing one or more water-soluble solvents having the IOB value of 1.5 to 3.5 and water in the mass ratio of 5:5 to 8:2, and wherein the composition is a liquid consisting of a bicontinuous microemulsion phase or a lamellar liquid crystal-dispersed bicontinuous microemulsion phase at 65 to 85° C. and a solid at room temperature.
    Type: Application
    Filed: May 28, 2015
    Publication date: April 20, 2017
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Reiji MIYAHARA, Tetsuro YONEZAWA, Kenji KUROKAWA
  • Publication number: 20160058679
    Abstract: The present invention provides an aqueous composition in which vesicles and oil drops are stably coexistent. The aqueous composition of the present invention is characterized by containing (a) an amphiphilic compound, (b) water, and (c) oil, wherein vesicles formed with component (a) and oil drops containing component (c) are present in component (b).
    Type: Application
    Filed: February 3, 2014
    Publication date: March 3, 2016
    Applicant: SHISEIDO COMPANY LTD.
    Inventor: TETSURO YONEZAWA