Patents by Inventor Reiji Miyahara

Reiji Miyahara 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: 11311466
    Abstract: Disclosed is an oil-in-water emulsion composition, and a preparation method therefor, and a product, wherein the composition comprises: a) cellulose with a hydrophobic group; b) a surfactant; c) a higher alcohol; d) an oil component; e) water; and optionally, f) a humectant and/or g) a higher fatty acid; the composition has a viscosity of 10,000 mPa·s or less.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 26, 2022
    Assignee: Shiseido Company, Ltd.
    Inventors: Yang Han, Reiji Miyahara, Ying Wang
  • Patent number: 11052030
    Abstract: A method of preparing a fine oil-in-water emulsion comprising an oil phase based on silicone and/or hydrocarbon oils, in which the oil phase particles have an average particle size of 150 nm or less. The emulsion is stabilized by a carboxy-modified silicone in combination with a C16 to 22 higher alcohol; a nonionic surfactant having a POE chain and an HLB of 5 to 10; and a dihydric glycol. The emulsions can be prepared without the use of a high-pressure emulsifying apparatus.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: July 6, 2021
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Makoto Uyama, Reiji Miyahara
  • 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: 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: 20200246230
    Abstract: Disclosed is an oil-in-water emulsion composition, and a preparation method therefor, and a product, wherein the composition comprises: a) cellulose with a hydrophobic group; b) a surfactant; c) a higher alcohol; d) an oil component; e) water; and optionally, f) a humectant and/or g) a higher fatty acid; the composition has a viscosity of 10,000 mPa·s or less.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 6, 2020
    Applicant: Shiseido Company, Ltd.
    Inventors: Yang HAN, Reiji MIYAHARA, Ying WANG
  • Publication number: 20200009036
    Abstract: A method of preparing a fine oil-in-water emulsion comprising an oil phase based on silicone and/or hydrocarbon oils, in which the oil phase particles have an average particle size of 150 nm or less. The emulsion is stabilized by a carboxy-modified silicone in combination with a C16 to 22 higher alcohol; a nonionic surfactant having a POE chain and an HLB of 5 to 10; and a dihydric glycol. The emulsions can be prepared without the use of a high-pressure emulsifying apparatus.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Makoto Uyama, Reiji Miyahara
  • 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: 10456337
    Abstract: The present invention provides an oil-in-oil type cosmetic composition that has excellent transfer resistance after application, a luster, favorable spreadability during application, and also excellent stability. The oil-in-oil type cosmetic composition comprises (a) 5 to 80% by mass of non-volatile hydrocarbon oil, (b) 1 to 70% by mass of non-volatile silicone oil, and (c) 0.1 to 10% by mass of dextrin fatty acid ester. Preferably, the non-volatile hydrocarbon oil (a) and the non-volatile silicone oil (b) are formulated at a ratio (mass ratio) of (a)/[(a)+(b)]=0.4 to 0.8.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: October 29, 2019
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Noriko Tomita, Reiji Miyahara, Hiroyuki Kakoki
  • 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
  • Publication number: 20180263883
    Abstract: A fine emulsion-type cosmetic comprises a finely-emulsified oil phase mainly based on a silicone oil or hydrocarbon oil without use of a high-pressure emulsifying apparatus, and optionally has an average emulsion particle size of 150 nm or less comprising: an aqueous phase as a continuous layer; an oil phase dispersed in the aqueous phase and comprising 82% by mass or more of a silicone oil and a hydrocarbon oil therein; a carboxy-modified silicone represented by the following formula (1); a C16 to 22 higher alcohol; a nonionic surfactant having a POE chain and an HLB of 5 to 10; and a dihydric glycol; wherein R1 and R2 are respectively a functional group represented by —O—Si(R4)3 in which R4 is an alkyl group having 1 to 6 carbon atoms; R3 is a monovalent hydrocarbon group having 1 to 10 carbon atoms; M is a hydrogen atom, metal atom, or organic cation; A is a linear or branched alkylene group represented by CqH2q; and q is an integer of 6 to 20.
    Type: Application
    Filed: September 6, 2016
    Publication date: September 20, 2018
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Makoto UYAMA, Reiji MIYAHARA
  • Publication number: 20170135914
    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: Application
    Filed: May 28, 2015
    Publication date: May 18, 2017
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Reiji MIYAHARA, Tetsuro T YONEZAWA, Makiyo MIYAKAWA
  • 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
  • Patent number: 9539444
    Abstract: A hair conditioning composition containing very little water from which a hair conditioner can be easily produced by diluting with water, and a low energy production method thereof. A hair conditioning composition including (a) 10 to 90% by mass of specifically structured higher alcohols and/or derivatives thereof, (b) 5 to 35% by mass of cationic surfactant, and (c) a polyhydric alcohol and/or polyethylene glycol having a melting point of 70° C. or less, wherein the melting point of a gel which is formed from (a) and (b) in the composition is 70° C. or less, the water content is 10% by mass or less, and the molar ratio of (a) to (b) is 2.5 or more to less than 6.0. Also, a low energy method of producing a hair conditioner by melting the hair conditioning composition under heating at the temperature of the melting point of gel or more to 70° C. or less, and diluting it with water in an amount of 3 to 15 times by mass.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: January 10, 2017
    Assignee: Shiseido Company, Ltd.
    Inventors: Kouichi Kinoshita, Reiji Miyahara, Kenji Kurokawa
  • Publication number: 20160317402
    Abstract: The present invention provides an oil-in-oil type cosmetic composition that has excellent transfer resistance after application, a luster, favorable spreadability during application, and also excellent stability. The oil-in-oil type cosmetic composition comprises (a) 5 to 80% by mass of non-volatile hydrocarbon oil, (b) 1 to 70% by mass of non-volatile silicone oil, and (c) 0.1 to 10% by mass of dextrin fatty acid ester. Preferably, the non-volatile hydrocarbon oil (a) and the non-volatile silicone oil (b) are formulated at a ratio (mass ratio) of (a)/[(a)+(b)]=0.4 to 0.8.
    Type: Application
    Filed: July 11, 2016
    Publication date: November 3, 2016
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: NORIKO TOMITA, Reiji Miyahara, Hiroyuki Kakoki
  • Publication number: 20130331468
    Abstract: The present invention provides a production method that can easily produce an O/W emulsion composition without using a special cooling apparatus and be economical. The production method of an O/W emulsion composition comprising the preparation of an emulsified part that is an O/W emulsion by emulsifying, at a temperature of 70° C. or higher, an oil phase comprising (A) a mono-branched fatty acid POE (0-60) glycerin ester, (B) a linear higher alcohol having 16 or more carbon atoms capable to form an ?-gel in water with said (A), and (C) an oil component, and a part of an aqueous phase (a first aqueous phase) comprising (D) water; and the cooling of this emulsified part by mixing with stirring the remaining main aqueous phase (a second aqueous phase) at 10 to 35° C., wherein an aqueous solvent in the emulsified part is 15 mass % or less.
    Type: Application
    Filed: February 22, 2012
    Publication date: December 12, 2013
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Makoto Uyama, Reiji Miyahara, Hidefumi Araki
  • Patent number: 8580235
    Abstract: An object of the present invention is to establish means for reliably incorporating a poorly soluble UV-absorbing agent into a hair cosmetic composition, to thereby provide a hair cosmetic composition which has excellent effect of preventing UV-hair damage and which exhibits favorable sensation in use thereof. Specifically, the object can be attained through provision of a hair cosmetic composition including the following ingredients (1) and (2): (1) a polyoxy(lower alkylene) addition compound represented by formula (I): wherein R represents a phytosterol residue or a phytostanol residue; m is a number from 0 to 100; and n is a number from 5 to 100, and (2) a UV-absorbing agent having a triazine group.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: November 12, 2013
    Assignee: Shiseido Company, Ltd.
    Inventors: Tomoko Watanabe, Tomoyuki Kawasoe, Takashi Teshigawara, Reiji Miyahara, Masatoshi Ochiai, Taizo Fujiyama
  • Patent number: 8461214
    Abstract: A one-phase microemulsion composition, which can be easily prepared without the use of special equipment, has high safety, and stays stable for a long period in an ultrafine emulsion state when the composition is added to an aqueous formulation, is provided by appropriately adjusting the ratio of (A) a hydrophilic nonionic surfactant, (B) a lipophilic nonionic surfactant, (C) an oil component, (D) a water-miscible solvent that does not interdissolve with the oil component, and the critical micelle concentration (CMC) of the hydrophilic nonionic surfactant in the water-miscible solvent is higher than that of the hydrophilic nonionic surfactant in water, and (E) water.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: June 11, 2013
    Assignee: Shiseido Co., Ltd.
    Inventors: Reiji Miyahara, Hiroyuki Kakoki, Nozomi Oguchi, Takashi Ohmori, Toshihiko Nakane