Patents by Inventor Shigeru Mugikura
Shigeru Mugikura 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: 9579266Abstract: An oil in water emulsion cosmetic composition for skin, in which vitamin A and its derivatives are stably incorporated and which has superior feeling in use (skin familiarity or feeling of skin absorption, feeling of efficacy after application) and base composition stability (emulsion stability) with the passage of time. The oil in water emulsion cosmetic composition for skin comprises, relative to the total amount of the cosmetic composition, (a) from 0.01 to 4% by mass of vitamin A and its derivative, (b) from 0.6 to 4% by mass of a nonionic surfactant comprising three of (b-1) sorbitan tristearate, (b-2) polyethylene glycol stearate with from 20 to 120 mols of polyethylene glycol added thereto, (b-3) glyceryl stearate having an HLB of from 5 to 8, and (c) from 1 to 10% by mass of a higher alcohol having from 14 to 24 carbon atoms, wherein the blend ratio (by mass) of component (b-1) to component (b) is from 0.1 to 0.8.Type: GrantFiled: July 8, 2009Date of Patent: February 28, 2017Assignee: SHISEIDO COMPANY, LTD.Inventors: Kazutaka Sasaki, Manabu Shimoda, Yoshihito Takakura, Haruhiko Inoue, Shigeru Mugikura
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Patent number: 9241884Abstract: Provided is a redispersible powder-dispersed cosmetic which has a clear supernatant when unused, can exhibit good powder redispersibility when shaken upon use, has a good sensation, e.g., smoothness and non-stickiness, upon application to the skin, and has an excellent effect of dissolving/removing keratotic plugs. The cosmetic is characterized by comprising (A) succinic acid and/or a salt thereof, (B) bentonite and (C) a hydrophilic surfactant. Particularly preferably, the cosmetic additionally comprises a cellulose powder. It is preferred that the component (A), i.e., succinic acid and/or the salt thereof, is contained in an amount of 0.01 to 10.0 mass % relative to the total amount of the cosmetic.Type: GrantFiled: December 25, 2012Date of Patent: January 26, 2016Assignee: SHISEIDO COMPANY, LTD.Inventors: Masayuki Shirao, Shigeru Mugikura
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Publication number: 20140357721Abstract: Provided is a redispersible powder-dispersed cosmetic which has a clear supernatant when unused, can exhibit good powder redispersibility when shaken upon use, has a good sensation, e.g., smoothness and non-stickiness, upon application to the skin, and has an excellent effect of dissolving/removing keratotic plugs. The cosmetic is characterized by comprising (A) succinic acid and/or a salt thereof, (B) bentonite and (C) a hydrophilic surfactant. Particularly preferably, the cosmetic additionally comprises a cellulose powder. It is preferred that the component (A), i.e., succinic acid and/or the salt thereof, is contained in an amount of 0.01 to 10.0 mass % relative to the total amount of the cosmetic.Type: ApplicationFiled: December 25, 2012Publication date: December 4, 2014Applicant: SHISEIDO COMPANY, LTD.Inventors: Masayuki Shirao, Shigeru Mugikura
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Patent number: 8062671Abstract: The objective of this invention is to provide an oily external composition for skin having an excellent rough skin recovering/preventing effect, and wherein powder is well dispersed in oil. An oily external composition for skin of this invention is characterized in that comprising a complex powder (the surface of lipophilic base powder is covered with zinc oxide) and an oil component, wherein said complex powder is dispersed in said oil component, and wherein zeta-potential of said lipophilic base powder is negative value at pH on skin. It is preferable that zeta-potential of said lipophilic base powder is ?10 mV or less at pH on skin. It is preferable that said lipophilic base powder is swelled in the condition of dispersing in oil. Above-mentioned external composition can be used as a rough skin recovering composition and a sensitive skin caring composition.Type: GrantFiled: December 26, 2003Date of Patent: November 22, 2011Assignee: Shiseido Co., Ltd.Inventors: Yukimitsu Suda, Mari Yoshida, Eriko Kawai, Shigeru Mugikura
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Publication number: 20110275712Abstract: An oil in water emulsion cosmetic composition for skin, in which vitamin A and its derivatives are stably incorporated and which has superior feeling in use (skin familiarity or feeling of skin absorption, feeling of efficacy after application) and base composition stability (emulsion stability) with the passage of time. The oil in water emulsion cosmetic composition for skin comprises, relative to the total amount of the cosmetic composition, (a) from 0.01 to 4% by mass of vitamin A and its derivative, (b) from 0.6 to 4% by mass of a nonionic surfactant comprising three of (b-1) sorbitan tristearate, (b-2) polyethylene glycol stearate with from 20 to 120 mols of polyethylene glycol added thereto, (b-3) glyceryl stearate having an HLB of from 5 to 8, and (c) from 1 to 10% by mass of a higher alcohol having from 14 to 24 carbon atoms, wherein the blend ratio (by mass) of component (b-1) to component (b) is from 0.1 to 0.8.Type: ApplicationFiled: July 8, 2009Publication date: November 10, 2011Applicant: SHISEIDO COMPANY, LTD.Inventors: Kazutaka Sasaki, Manabu Shimoda, Yoshihito Takakura, Haruhiko Inoue, Shigeru Mugikura
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Publication number: 20060110414Abstract: The objective of this invention is to provide an oily external composition for skin having an excellent rough skin recovering/preventing effect, and wherein powder is well dispersed in oil. An oily external composition for skin of this invention is characterized in that comprising a complex powder (the surface of lipophilic base powder is covered with zinc oxide) and an oil component, wherein said complex powder is dispersed in said oil component, and wherein zeta-potential of said lipophilic base powder is negative value at pH on skin. It is preferable that zeta-potential of said lipophilic base powder is ?10 mV or less at pH on skin. It is preferable that said lipophilic base powder is swelled in the condition of dispersing in oil. Above-mentioned external composition can be used as a rough skin recovering composition and a sensitive skin caring composition.Type: ApplicationFiled: December 26, 2003Publication date: May 25, 2006Applicant: Shiseido Co., Ltd.Inventors: Yukimitsu Suda, Mari Yoshida, Eriko Kawai, Shigeru Mugikura
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Patent number: 6476024Abstract: Ultraviolet absorbents and photostabilizers have an excellent absorption ability in a wide range of ultraviolet rays, and also have high stability and high safety. The ultraviolet absorbent and photostabilizer include a pyridazine derivative of the formula (1): or salts thereof. Also, described are methods for manufacturing said pyridazine derivative and/or this salts thereof comprising the process of reacting at least 10 wt % of 4,5-dichloro-3-hydroxypyridazine or 4,5-dibromo-3-hydroxypyridazine or mixtures thereof with at least 20 vol % of morpholine in reaction solution at 70° C. or higher. The ultraviolet absorbents photostabilizers include said pyridazine derivative and/or salts thereof as effective ingredient. An ultraviolet ray absorption composition and an external preparation for skin are also included.Type: GrantFiled: March 4, 2002Date of Patent: November 5, 2002Assignee: Shiseido Co. Ltd.Inventors: Masaru Suetsugu, Eijiro Hara, Yuji Matsushita, Haruhiko Inoue, Haruo Ogawa, Keiko Sakai, Shigeru Mugikura
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Patent number: 6395896Abstract: Ultraviolet absorbents and photostabilizers have an excellent absorption ability in a wide range of ultraviolet rays, and also have high stability and high safety. The ultraviolet absorbent and photostabilizer include a pyridazine derivative of the formula (1): or salts thereof. Also, described are methods for manufacturing said pyridazine derivative and/or this salts thereof comprising the process of reacting at least 10 wt % of 4,5-dichloro-3-hydroxypyridazine or 4,5-dibromo-3-hydroxypyridazine or mixtures thereof with at least 20 vol % of morpholine in reaction solution at 70° C. or higher. The ultraviolet absorbents photostabilizers include said pyridazine derivative and/or salts thereof as effective ingredient. An ultraviolet ray absorption composition and an external preparation for skin are also included.Type: GrantFiled: December 15, 2000Date of Patent: May 28, 2002Assignee: Shiseido Co., Ltd.Inventors: Masaru Suetsugu, Eijiro Hara, Yuji Matsushita, Haruhiko Inoue, Haruo Ogawa, Keiko Sakai, Shigeru Mugikura
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Publication number: 20010012841Abstract: Ultraviolet absorbents and photostabilizers have an excellent absorption ability in a wide range of ultraviolet rays, and also have high stability and high safety.Type: ApplicationFiled: December 15, 2000Publication date: August 9, 2001Inventors: Masaru Suetsugu, Eijiro Hara, Yuji Matsushita, Haruhiko Inoue, Haruo Ogawa, Keiko Sakai, Shigeru Mugikura