Patents by Inventor Takayuki Sakiguchi

Takayuki Sakiguchi 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: 8486997
    Abstract: An external preparation for skin containing an alkylresorcinol and being excellent in temperature stability (especially high-temperature stability) and photostability. More particularly an external preparation for skin comprising (a) from 0.01 to 5% by mass of 4-isobutyl resorcinol or a salt thereof, and (b) from 0.01 to 5% by mass of one or more selected from L-ascorbic acid or a salt thereof and a 3-O-alkyl-L-ascorbic acid or a salt thereof. If desired, (c) one or more compounds selected from (c-1) a sterol skeleton-having compound (e.g., POE phytosterols, POE cholestanols), (c-2) a vitamin E derivative, (c-3) a compound such as polyglycerin fatty acid esters, polyoxybutene-polyglycerin alkyl ethers, sucrose fatty acid esters, and (c-4) a sorbitan skeleton-having compound may be incorporated in the preparation.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: July 16, 2013
    Assignee: Shiseido Company
    Inventors: Keisuke Shinto, Takayuki Sakiguchi, Kazuhiko Fujiwara
  • Publication number: 20110213030
    Abstract: An external preparation for skin containing an alkylresorcinol and being excellent in temperature stability (especially high-temperature stability) and photostability. More particularly an external preparation for skin comprising (a) from 0.01 to 5% by mass of 4-isobutyl resorcinol or a salt thereof, and (b) from 0.01 to 5% by mass of one or more selected from L-ascorbic acid or a salt thereof and a 3-O-alkyl-L-ascorbic acid or a salt thereof. If desired, (c) one or more compounds selected from (c-1) a sterol skeleton-having compound (e.g., POE phytosterols, POE cholestanols), (c-2) a vitamin E derivative, (c-3) a compound such as polyglycerin fatty acid esters, polyoxybutene-polyglycerin alkyl ethers, sucrose fatty acid esters, and (c-4) a sorbitan skeleton-having compound may be incorporated in the preparation.
    Type: Application
    Filed: May 29, 2009
    Publication date: September 1, 2011
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Keisuke Shinto, Takayuki Sakiguchi, Kazuhiko Fujiwara
  • Publication number: 20100143284
    Abstract: A water-in-oil type emulsion with a highly moisturizing effect on the skin has good emulsion stability and achieves a good feeling in use as a massage cream when a large amount of perfume is blended. The water-in-oil type emulsion includes the following components: (A) glyceryl monooleate, (B) a surfactant having branched chains in an alkyl group, (C) an aqueous component, (D) an oil component, and (E) a perfume component, Conditions (1) and (2) are met by the emulsion. Condition (1): the ratio of the sum of glyceryl monooleate (component (A)) and the surfactant having branched chains in an alkyl group (component (B)) with respect to a total composition is from 5 to 10% by mass. Condition (2): the ratio of perfume component (component (E)) with respect to the total composition is 0.3% by mass or more.
    Type: Application
    Filed: May 14, 2008
    Publication date: June 10, 2010
    Applicant: SHISEIDO COMPANY LTD.
    Inventors: Kei Watanabe, Takayuki Sakiguchi, Takashi Teshigawara
  • Publication number: 20090136540
    Abstract: There are provided an anti-aging composition, a collagen production promoting composition, a collagen gel contraction promoting composition, and an integrin production promoting composition for promoting integrin production in fibroblasts/epidermal cell, which have improved collagen production promotion effect and are effective for preventing or reducing wrinkle and/or sagging caused by aging. These anti-aging composition and promoting composition comprise, as an active ingredient, a hydrogen peroxide-treated yeast hydrolysate.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 28, 2009
    Inventors: Keiko Takada, Rikako Suzuki, Miki Guentert, Shinji Inomata, Chika Hamada, Takayuki Sakiguchi
  • Publication number: 20070134176
    Abstract: The invention provides a color-developing composition without using a pigment or dye and capable of being colored sustainably and stably after mixing two liquid phases which are colorless before mixing. The composition consists of two discrete liquid phases, wherein the refractive index of each liquid phase is identical to each other at a point within the wavelength range from 400 nm to 800 nm, wherein a continuous layer and a dispersion layer are formed by mixing and dispersing said two phases whereby developing a color. Alternatively, the composition is a powder dispersion consisting of a liquid phase and a silica powder-containing solid phase, wherein said liquid phase has a refractive index n1 and said silica has a refractive index n2, which satisfy Equation (1): |n1?n2|<0.05??(1) whereby developing a color on the basis of the difference in the refractive index at the interface between the liquid phase and the solid phase.
    Type: Application
    Filed: February 9, 2007
    Publication date: June 14, 2007
    Inventors: Hiroshi Fukui, Yuichiro Mori, Takayuki Sakiguchi, Masanori Yoshimura, Yuji Matsushita, Norinobu Yoshikawa, Keiko Sakai, Kazuhisa Ohno, Makio Akimoto
  • Publication number: 20070134265
    Abstract: There are provided an anti-aging composition, a collagen production promoting composition, a collagen gel contraction promoting composition, and an integrin production promoting composition for promoting integrin production in fibroblasts/epidermal cell, which have improved collagen production promotion effect and are effective for preventing or reducing wrinkle and/or sagging caused by aging. These anti-aging composition and promoting composition comprise, as an active ingredient, a hydrogen peroxide-treated yeast hydrolysate.
    Type: Application
    Filed: May 18, 2004
    Publication date: June 14, 2007
    Applicant: Shiseido Company, Ltd.
    Inventors: Keiko Takada, Rikako Suzuki, Miki Guentert, Shinji Inomata, Chika Hamada, Takayuki Sakiguchi
  • Patent number: 7223799
    Abstract: The invention provides a color-developing composition without using a pigment or dye and capable of being colored sustainably and stably after mixing two liquid phases which are colorless before mixing. The composition consists of two discrete liquid phases, wherein the refractive index of each liquid phase is identical to each other at a point within the wavelength range from 400 nm to 800 nm, wherein a continuous layer and a dispersion layer are formed by mixing and dispersing said two phases whereby developing a color. Alternatively, the composition is a powder dispersion consisting of a liquid phase and a silica powder-containing solid phase, wherein said liquid phase has a refractive index n1 and said silica has a refractive index n2, which satisfy Equation (1): |n1?n2|<0.05??(1) whereby developing a color on the basis of the difference in the refractive index at the interface between the liquid phase and the solid phase.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 29, 2007
    Assignee: Shiseido Research Center
    Inventors: Takayuki Sakiguchi, Norinobu Yoshikawa, Keiko Sakai, Makio Akimoto, Kazuhisa Ohno, Hiroshi Fukui
  • Publication number: 20050158264
    Abstract: Sympathetic nerve-stimulating fragrant compositions with weight-loss effects, characterized by containing one or more selected from among fennel oil, grapefruit oil, pepper oil, hyssop oil, sage oil, estragon oil, eucalyptus oil, rosemary oil, cinnamon oil, clove oil, ylang ylang oil, ginger oil, geranium oil and olibanum, or one or more from among limonene, pinene, myrcene and benzyl benzoate as the active ingredients in the oils, and preferably also containing caffeine.
    Type: Application
    Filed: March 14, 2005
    Publication date: July 21, 2005
    Inventors: Shinichiro Haze, Keiko Sakai, Yoko Gozu, Yukiko Koizumi, Takeshi Hariya, Michio Shibata, Takayuki Sakiguchi
  • Publication number: 20050003976
    Abstract: Sympathetic nerve-stimulating fragrant compositions with weight-loss effects, characterized by containing one or more selected from among fennel oil, grapefruit oil, pepper oil, hyssop oil, sage oil, estragon oil, eucalyptus oil, rosemary oil, cinnamon oil, clove oil, ylang ylang oil, ginger oil, geranium oil and olibanum, or one or more from among limonene, pinene, myrcene and benzyl benzoate as the active ingredients in the oils, and preferably also containing caffeine.
    Type: Application
    Filed: July 28, 2004
    Publication date: January 6, 2005
    Inventors: Shinichiro Haze, Keiko Sakai, Yoko Gozu, Yukiko Koizumi, Takeshi Hariya, Michio Shibata, Takayuki Sakiguchi
  • Publication number: 20030190295
    Abstract: The invention provides a color-developing composition without using a pigment or dye and capable of being colored sustainably and stably after mixing two liquid phases which are colorless before mixing. The composition consists of two discrete liquid phases, wherein the refractive index of each liquid phase is identical to each other at a point within the wavelength range from 400 nm to 800 nm, wherein a continuous layer and a dispersion layer are formed by mixing and dispersing said two phases whereby developing a color.
    Type: Application
    Filed: December 26, 2002
    Publication date: October 9, 2003
    Inventors: Hiroshi Fukui, Yuichiro Mori, Takayuki Sakiguchi, Masanori Yoshimura, Yuji Matsushita, Norinobu Yoshikawa, Keiko Sakai, Kazuhisa Ohno, Makio Akimoto
  • Publication number: 20030054015
    Abstract: Sympathetic nerve-stimulating fragrant compositions with weight-loss effects, characterized by containing one or more selected from among fennel oil, grapefruit oil, pepper oil, hyssop oil, sage oil, estragon oil, eucalyptus oil, rosemary oil, cinnamon oil, clove oil, ylang ylang oil, ginger oil, geranium oil and olibanum, or one or more from among limonene, pinene, myrcene and benzyl benzoate as the active ingredients in the oils, and preferably also containing caffeine.
    Type: Application
    Filed: August 22, 2002
    Publication date: March 20, 2003
    Inventors: Shinichiro Haze, Keiko Sakai, Yoko Gozu, Yukiko Koizumi, Takeshi Hariya, Michio Shibata, Takayuki Sakiguchi