Patents by Inventor Akiyo Kameyama
Akiyo Kameyama 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).
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Patent number: 9238052Abstract: To provide a method for producing a Hippocastanaceae plant seed extract which is less colored and is suitably incorporated into a composition such as a pharmaceutical product or a cosmetic composition. A method for producing a Hippocastanaceae plant seed extract, which includes removing hulls from seeds of a Hippocastanaceae plant, followed by extraction with a solvent.Type: GrantFiled: February 10, 2009Date of Patent: January 19, 2016Assignee: Kao CorporationInventors: Akiyo Kameyama, Tsutomu Fujimura
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Patent number: 9056119Abstract: Provided are a VEGF production promoter, a hair quality improver, and an external preparation for skin, each of which has a VEGF production promoting activity and can be used as a pharmaceutical agent, a cosmetic, a food, or a material therefor. The VEGF production promoter, the hair quality improver, and the external preparation for skin each comprises, as an active ingredient, a cycloartane-type glycoside represented by the following general formula (1) (where R represents a xylose residue or an arabinose residue, and the ring D moiety represents any one of the following moieties a to f (where R1 represents a hydrogen atom or a methyl group, R2 represents a hydrogen atom or an acetyl group, R3 represents a hydrogen atom or a hydroxyl, group, R4 represents a hydrogen atom or a hydroxyl group, and Ac represents an acetyl group)).Type: GrantFiled: July 1, 2011Date of Patent: June 16, 2015Assignee: Kao CorporationInventors: Akiyo Kameyama, Sachie Ueda
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Patent number: 8853174Abstract: An agent for preventing or ameliorating skin aging, which exhibits a more excellent effect on the suppression of formation, or the amelioration, of wrinkles on the skin or sagging skin. An agent for preventing or ameliorating skin aging, containing triterpenoid saponins represented by the following formula (1) as an active ingredient, wherein at least one of R1 and R2 is a tigloyl group and the other represents a tigloyl group or an angeloyl group; R3 represents a methyl group or a hydroxymethyl group; and R4 represents Glc, Xyl or Gal.Type: GrantFiled: February 26, 2009Date of Patent: October 7, 2014Assignee: Kao CorporationInventors: Akiyo Kameyama, Tsutomu Fujimura
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Publication number: 20130102549Abstract: Provided are a VEGF production promoter, a hair quality improver, and an external preparation for skin, each of which has a VEGF production promoting activity and can be used as a pharmaceutical agent, a cosmetic, a food, or a material therefor. The VEGF production promoter, the hair quality improver, and the external preparation for skin each comprises, as an active ingredient, a cycloartane-type glycoside represented by the following general formula (1) (where R represents a xylose residue or an arabinose residue, and the ring D moiety represents any one of the following moieties a to f (where R1 represents a hydrogen atom or a methyl group, R2 represents a hydrogen atom or an acetyl group, R3 represents a hydrogen atom or a hydroxyl, group, R4 represents a hydrogen atom or a hydroxyl group, and Ac represents an acetyl group)).Type: ApplicationFiled: July 1, 2011Publication date: April 25, 2013Inventors: Akiyo Kameyama, Sachie Ueda
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Publication number: 20100331272Abstract: An agent for preventing or ameliorating skin aging, which exhibits a more excellent effect on the suppression of formation, or the amelioration, of wrinkles on the skin or sagging skin. An agent for preventing or ameliorating skin aging, containing triterpenoid saponins represented by the following formula (1) as an active ingredient, wherein at least one of R1 and R2 is a tigloyl group and the other represents a tigloyl group or an angeloyl group; R3 represents a methyl group or a hydroxymethyl group; and R4 represents Glc, Xyl or Gal.Type: ApplicationFiled: February 26, 2009Publication date: December 30, 2010Applicant: KAO CorporationInventors: Akiyo Kameyama, Tsutomu Fujimura
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Publication number: 20100310689Abstract: To provide a method for producing a Hippocastanaceae plant seed extract which is less colored and is suitably incorporated into a composition such as a pharmaceutical product or a cosmetic composition. A method for producing a Hippocastanaceae plant seed extract, which includes removing hulls from seeds of a Hippocastanaceae plant, followed by extraction with a solvent.Type: ApplicationFiled: February 10, 2009Publication date: December 9, 2010Applicant: Kao CorporationInventors: Akiyo Kameyama, Tsutomu Fujimura
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Patent number: 7351716Abstract: The present invention relates to a dermatologic preparation containing a diamide derivative represented by the following formula (1): (wherein, R1 represents a linear or branched hydrocarbon group having 1 to 22 carbon atoms which may be substituted by one or more hydroxy and/or alkoxy groups, R2 represents a linear or branched divalent hydrocarbon group having 1 to 12 carbon atoms, and R3 represents a linear or branched divalent hydrocarbon group having 1 to 42 carbon atoms). This diamide derivative (1) is capable of fundamentally improving the water retention capacity and barrier functions of the horny layer, is excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.Type: GrantFiled: December 10, 2003Date of Patent: April 1, 2008Assignee: Kao CorporationInventors: Masahide Hoshino, Yoshiya Sugai, Akiyo Kameyama, Hiroaki Saito, Yoshinori Nishizawa, Yutaka Takagi
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Publication number: 20040115162Abstract: The present invention relates to a dermatologic preparation containing a diamide derivative represented by the following formula (1): 1Type: ApplicationFiled: December 10, 2003Publication date: June 17, 2004Applicant: KAO CORPORATIONInventors: Masahide Hoshino, Yoshiya Sugai, Akiyo Kameyama, Hiroaki Saito, Yoshinori Nishizawa, Yutaka Takagi
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Patent number: 6685953Abstract: The present invention relates to a dermatologic preparation containing a diamide derivative represented by the following formula (1): (wherein, R1 represents a linear or branched hydrocarbon group having 1 to 22 carbon atoms which may be substituted by one or more hydroxy and/or alkoxy groups, R2 represents a linear or branched divalent hydrocarbon group having 1 to 12 carbon atoms, and R3 represents a linear or branched divalent hydrocarbon group having 1 to 42 carbon atoms). This diamide derivative (1) is capable of fundamentally improving the water retention capacity and barrier functions of the horny layer, is excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.Type: GrantFiled: October 4, 2001Date of Patent: February 3, 2004Assignee: Kao CorporationInventors: Masahide Hoshino, Yoshiya Sugai, Akiyo Kameyama, Hiroaki Saito, Yoshinori Nishizawa, Yutaka Takagi