Patents by Inventor Norinobu Yoshikawa
Norinobu Yoshikawa 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: 9084724Abstract: The present invention provides water-in-oil type emulsion sunscreen cosmetics that achieve an excellent UV blocking effect, and have excellent effects in the prevention and inhibition of discoloration (discoloration to red). The water-in-oil emulsion sunscreen cosmetic according to the present invention is characterized by comprising: (a) octocrylene; (b) hydrophobized zinc oxide; (c) cationic surfactant; and (d) silica.Type: GrantFiled: March 3, 2014Date of Patent: July 21, 2015Assignee: SHISEIDO CO., LTD.Inventors: Masayuki Shirao, Kazuhiro Yamaguchi, Takashi Matsui, Norinobu Yoshikawa, Yuki Nomura
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Publication number: 20140178481Abstract: The present invention provides water-in-oil type emulsion sunscreen cosmetics that achieve an excellent UV blocking effect, and have excellent effects in the prevention and inhibition of discoloration (discoloration to red). The water-in-oil emulsion sunscreen cosmetic according to the present invention is characterized by comprising: (a) octocrylene; (b) hydrophobized zinc oxide; (c) cationic surfactant; and (d) silica.Type: ApplicationFiled: March 3, 2014Publication date: June 26, 2014Applicant: Shiseido Co., Ltd.Inventors: Masayuki Shirao, Kazuhiro Yamaguchi, Takashi Matsui, Norinobu Yoshikawa, Yuki Nomura
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Publication number: 20130050431Abstract: A method of observing a cross-section of a cosmetic material includes a sample forming step of forming a sample by providing a cosmetic material on a sample holder; a freezing step of freezing the sample; a cutting step of forming a cut surface on the sample by processing the frozen sample by a focused ion beam; and a cut surface image processing step of obtaining a cut surface image of the cut surface using a scanning electron microscope.Type: ApplicationFiled: August 15, 2012Publication date: February 28, 2013Applicant: SHISEIDO COMPANY, LTD.Inventors: Norinobu YOSHIKAWA, Kaori Ikuta
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Patent number: 8092834Abstract: A complex powder comprising an adsorption site and operation site, wherein said adsorption site attracts or adsorbs a specific enzyme, wherein said operation site inhibits or activates said enzyme, and wherein each of the both sites are appeared on the surface of the powder. In the complex powder described above, it is preferable that ?-potential of the adsorption site at the pH employed is negative value, wherein said adsorption site attracts or adsorbs the specific enzyme whose ?-potential is positive value, and wherein said adsorption site inhibits or activates said specific enzyme. And it is preferable that said adsorption site has ?-potential at pH7.5 of ?10 mV or below. In the complex powder described above, it is preferable that said specific enzyme is a plasminogen activator, and the operation site inhibits said plasminogen activator. The complex powder described above can be used as an external composition for improving a rough skin and an external composition for a sensitive skin.Type: GrantFiled: June 28, 2002Date of Patent: January 10, 2012Assignee: Shiseido Co., Ltd.Inventors: Norinobu Yoshikawa, Kenichi Sakuma, Katsuki Ogawa, Satoshi Tomomasa, Eriko Kawai, Hiroyuki Yokoyama, Yukimitsu Suda
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Publication number: 20100233103Abstract: The present invention provides water-in-oil type emulsion sunscreen cosmetics that achieve an excellent UV blocking effect, and have excellent effects in the prevention and inhibition of discoloration (discoloration to red). The water-in-oil emulsion sunscreen cosmetic according to the present invention is characterized by comprising: (a) octocrylene; (b) hydrophobized zinc oxide; (c) cationic surfactant; and (d) silica.Type: ApplicationFiled: February 20, 2007Publication date: September 16, 2010Applicant: SHISEIDO CO., LTD.Inventors: Masayuki Shirao, Kazuhiro Yamaguchi, Takashi Matsui, Norinobu Yoshikawa, Yuki Nomura
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Publication number: 20100196515Abstract: The present invention provides an external preparation for skin comprising antibacterial zeolite and a nonvolatile liquid oil component that comprises a nonionic surfactant having a HLB of 6-8 that has a polyoxyethylene chain. The object of the present invention is to provide an external preparation for skin, particularly a deodorant cosmetic, that enables more effective removal of its stain on clothing by washing.Type: ApplicationFiled: August 7, 2008Publication date: August 5, 2010Applicant: SHISEIDO COMPANY, LTD.Inventors: Yukiko Kamiya, Hidefumi Araki, Norinobu Yoshikawa
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Patent number: 7381415Abstract: A first subject of the present invention is a composite powder having antibacterial and antifungal effect, in which a base powder, zinc oxide and/or zinc basic carbonate, and alkali metal salt are combined. In the composite powder, it is preferable that the base powder is an adsorbing site for adsorbing a specified enzyme, and a site in which zinc oxide and/or zinc basic carbonate and alkali metal salt are combined is an acting site having enzyme inhibiting or activating property. In the composite powder, it is preferable that the zeta-potential of an adsorbing site at pH to be used is a negative value, and the zeta-potential of an adsorbing site at pH 7.5 is ?10 mV or lower. A second subject of the present invention is a cosmetic composition comprising the aforementioned composite powder. The composite powder can be also used as a skin roughening improving agent, a sensitive skin caring agent or a pimpled skin caring agent.Type: GrantFiled: March 28, 2003Date of Patent: June 3, 2008Assignee: Shiseido Co., Ltd.Inventors: Hiroyuki Yokoyama, Satoshi Tomomasa, Kenichi Sakuma, Norinobu Yoshikawa, Eriko Kawai, Shigeyuki Ogawa
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Publication number: 20070134176Abstract: 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: ApplicationFiled: February 9, 2007Publication date: June 14, 2007Inventors: Hiroshi Fukui, Yuichiro Mori, Takayuki Sakiguchi, Masanori Yoshimura, Yuji Matsushita, Norinobu Yoshikawa, Keiko Sakai, Kazuhisa Ohno, Makio Akimoto
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Patent number: 7223799Abstract: 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: GrantFiled: March 29, 2002Date of Patent: May 29, 2007Assignee: Shiseido Research CenterInventors: Takayuki Sakiguchi, Norinobu Yoshikawa, Keiko Sakai, Makio Akimoto, Kazuhisa Ohno, Hiroshi Fukui
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Publication number: 20050181067Abstract: A first subject of the present invention is a composite powder having antibacterial and antifungal effect, in which a base powder, zinc oxide and/or zinc basic carbonate, and alkali metal salt are combined. In the composite powder, it is preferable that the base powder is an adsorbing site for adsorbing a specified enzyme, and a site in which zinc oxide and/or zinc basic carbonate and alkali metal salt are combined is an acting site having enzyme inhibiting or activating property. In the composite powder, it is preferable that the zeta-potential of an adsorbing site at pH to be used is a negative value, and the zeta-potential of an adsorbing site at pH 7.5 is ?10 mV or lower. A second subject of the present invention is a cosmetic composition comprising the aforementioned composite powder. The composite powder can be also used as a skin roughening improving agent, a sensitive skin caring agent or a pimpled skin caring agent.Type: ApplicationFiled: March 28, 2003Publication date: August 18, 2005Inventors: Hiroyuki Yokoyama, Satoshi Tomomasa, Kenichi Sakuma, Norinobu Yoshikawa, Eriko Kawai, Shigeyuki Ogawa
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Publication number: 20040175386Abstract: A complex powder comprising an adsorption site and operation site,Type: ApplicationFiled: December 22, 2003Publication date: September 9, 2004Inventors: Norinobu Yoshikawa, Kenichi Sakuma, Katsuki Ogawa, Satoshi Tomomasa, Eriko Kawai, Hiroyuki Yokoyama, Yukimitsu Suda
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Publication number: 20030190295Abstract: 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: ApplicationFiled: December 26, 2002Publication date: October 9, 2003Inventors: Hiroshi Fukui, Yuichiro Mori, Takayuki Sakiguchi, Masanori Yoshimura, Yuji Matsushita, Norinobu Yoshikawa, Keiko Sakai, Kazuhisa Ohno, Makio Akimoto