Patents by Inventor Takuro Ashida
Takuro Ashida 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: 11033468Abstract: The present invention provides a liquid dispersion capable of stably maintaining the dispersed state for a long time and suitably applicable to both O/W type cosmetic products and W/O type cosmetic products. The present invention also provides a cosmetic raw material containing the liquid dispersion and a cosmetic product containing the liquid dispersion. The present invention provides a liquid dispersion containing a polyol (A); a nonionic surfactant (B); and a hydrophobized inorganic powder (C), wherein the water content in 100% by mass of the liquid dispersion is 1% by mass or less.Type: GrantFiled: April 5, 2017Date of Patent: June 15, 2021Assignee: SAKAI CHEMICAL INDUSTRY CO., LTD.Inventors: Takuro Ashida, Koichiro Magara, Akifumi Sano, Ayana Shike
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Patent number: 10759672Abstract: The present invention provides a barium sulfate spherical composite powder that has significantly high strength and excellent texture, and achieves high haze while maintaining high total light transmittance, and a method for producing such a composite powder. The present invention relates to a method for producing a barium sulfate spherical composite powder, which is a method for producing a spherical composite powder of barium sulfate and silica, the method comprising the steps of (1) preparing a slurry containing particulate barium sulfate and a silica sol, (2) spray-drying the slurry, and (3) firing a dry substance obtained in the step (2).Type: GrantFiled: February 7, 2018Date of Patent: September 1, 2020Assignee: SAKAI CHEMICAL INDUSTRY CO., LTD.Inventors: Satoshi Kamada, Takuro Ashida
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Publication number: 20200138677Abstract: The present invention provides a liquid dispersion capable of stably maintaining the dispersed state for a long time and suitably applicable to both O/W type cosmetic products and W/O type cosmetic products. The present invention also provides a cosmetic raw material containing the liquid dispersion and a cosmetic product containing the liquid dispersion. The present invention provides a liquid dispersion containing a polyol (A); a nonionic surfactant (B); and a hydrophobized inorganic powder (C), wherein the water content in 100% by mass of the liquid dispersion is 1% by mass or less.Type: ApplicationFiled: April 5, 2017Publication date: May 7, 2020Inventors: Takuro ASHIDA, Koichiro MAGARA, Akifumi SANO, Ayana SHIKE
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Publication number: 20190375652Abstract: The present invention provides a barium sulfate spherical composite powder that has significantly high strength and excellent texture, and achieves high haze while maintaining high total light transmittance, and a method for producing such a composite powder. The present invention relates to a method for producing a barium sulfate spherical composite powder, which is a method for producing a spherical composite powder of barium sulfate and silica, the method comprising the steps of (1) preparing a slurry containing particulate barium sulfate and a silica sol, (2) spray-drying the slurry, and (3) firing a dry substance obtained in the step (2).Type: ApplicationFiled: February 7, 2018Publication date: December 12, 2019Inventors: Satoshi KAMADA, Takuro ASHIDA
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Publication number: 20170165154Abstract: It is one of the objects of the present disclosure to provide a water-based dispersion prepare a stable O/W product having an ultralight shielding effect, and to provide a cosmetic having a good feeling and a strong water repellency for sweat and water, by blending the water-based dispersion to a cosmetic. A water-based dispersion which contains an inorganic powder microfine particle subjected to a hydrophobic organic surface treatment, a polyhydric alcohol, water, and a nonionic surfactant, wherein the nonionic surfactant is a compound which can be dissolved transparently or slightly muddy in 1,3-butylene glycol (20 wt % concentration, 35° C.), and an amount of the inorganic powder microfine particle is 30 wt % or more.Type: ApplicationFiled: February 5, 2015Publication date: June 15, 2017Applicant: Sakai Chemical Industry Co., Ltd.Inventors: Takuro ASHIDA, Koichiro MAGARA, Akifumi SANO, Ayana SHIKE
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Patent number: 9249318Abstract: An object of the present invention is to obtain a dispersion in which a water-repellent inorganic powder is dispersed in water. The dispersion can be handled easily because the dispersion medium is water. In the case of using the dispersion for cosmetics, the dispersion can be suitably used when an inorganic powder subjected to a water-repellent treatment is mixed in an aqueous cosmetic. A dispersion in which an inorganic powder subjected to a water-repellent organic surface treatment is uniformly dispersed in water, wherein the contents of a water-repellent inorganic powder, a dispersant, and water is 80% by weight or more based on the total amount of the dispersion.Type: GrantFiled: August 1, 2012Date of Patent: February 2, 2016Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Takuro Ashida, Kunitada Nishida, Jun Iwata
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Patent number: 9040094Abstract: The present invention has an object to provide a flaky particulate material giving skin an excellent smoothness, which is free from whitening problem upon use thereof owing to its high transparency. The present invention also has another object to provide a cosmetic composition containing the flaky particulate material. The present invention relates to flaky particulate material, which has an average coefficient of friction is not more than 0.50, and a total light transmittance is not less than 85%. A particle in the flaky particulate material comprises a substrate particle made of one material selected from the group consisting of mica, a synthetic mica, sericite, talc, barium sulfate and aluminum oxide. The present invention provides a flaky particulate material that gives skin excellent smoothness, a natural tone, and a matt appearance. The flaky particulate material of the present invention gives a cosmetic composition which provides great comfort of use, and an excellent appearance.Type: GrantFiled: October 10, 2014Date of Patent: May 26, 2015Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Keiji Ono, Takuro Ashida, Hiroyuki Izumikawa, Hirobumi Yoshida
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Publication number: 20150030768Abstract: The present invention has an object to provide a flaky particulate material giving skin an excellent smoothness, which is free from whitening problem upon use thereof owing to its high transparency. The present invention also has another object to provide a cosmetic composition containing the flaky particulate material. The present invention relates to flaky particulate material, which has an average coefficient of friction is not more than 0.50, and a total light transmittance is not less than 85%. A particle in the flaky particulate material comprises a substrate particle made of one material selected from the group consisting of mica, a synthetic mica, sericite, talc, barium sulfate and aluminum oxide. The present invention provides a flaky particulate material that gives skin excellent smoothness, a natural tone, and a matt appearance. The flaky particulate material of the present invention gives a cosmetic composition which provides great comfort of use, and an excellent appearance.Type: ApplicationFiled: October 10, 2014Publication date: January 29, 2015Inventors: Keiji ONO, Takuro ASHIDA, Hiroyuki IZUMIKAWA, Hirobumi YOSHIDA
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Publication number: 20140242128Abstract: An object of the present invention is to provide a composite powder that is stable even if it is present in water for a long time. A composite powder, comprising: an inorganic powder; a first coating layer containing a water-repellent organic compound on the surface of the inorganic powder; and a second coating layer which contains at least one compound selected from the group consisting of silicon oxide, silicon oxide hydrate, aluminum oxide, and aluminum hydroxide, and which is formed on the first coating layer.Type: ApplicationFiled: August 1, 2012Publication date: August 28, 2014Applicant: Sakai Chemical Industry Co., Ltd.Inventors: Takuro Ashida, Nanae Gouda
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Publication number: 20140199251Abstract: An object of the present invention is to obtain a dispersion in which a water-repellent inorganic powder is dispersed in water. The dispersion can be handled easily because the dispersion medium is water. In the case of using the dispersion for cosmetics, the dispersion can be suitably used when an inorganic powder subjected to a water-repellent treatment is mixed in an aqueous cosmetic. A dispersion in which an inorganic powder subjected to a water-repellent organic surface treatment is uniformly dispersed in water, wherein the contents of a water-repellent inorganic powder, a dispersant, and water is 80% by weight or more based on the total amount of the dispersion.Type: ApplicationFiled: August 1, 2012Publication date: July 17, 2014Applicant: Sakai Chemical Industry Co. Ltd.Inventors: Takuro Ashida, Kunitada Nishida, Jun Iwata
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Publication number: 20110142894Abstract: The present invention has an object to provide a high concentration dispersion of zinc oxide or titanium dioxide which is free of volatile silicones, as well as a cosmetic composition which gives little sticky feel after spreading on the skin. The present invention relates to a dispersion which contains: zinc oxide or titanium dioxide; an isoparaffin having the average polymerization degree of 3 to 10; and a polyether-modified silicone having an HLB value of 2 to 5, as a dispersant; the amount of the zinc oxide or titanium dioxide being not less than 60% by mass of the whole amount of the dispersion.Type: ApplicationFiled: October 5, 2010Publication date: June 16, 2011Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.Inventors: Ayaka WATANABE, Takuro ASHIDA
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Publication number: 20100098780Abstract: The present invention has an object to provide a flaky particulate material giving skin an excellent smoothness, which is free from whitening problem upon use thereof owing to its high transparency. The present invention also has another object to provide a cosmetic composition containing the flaky particulate material. The present invention relates to flaky particulate material, which has an average coefficient of friction is not more than 0.50, and a total light transmittance is not less than 85%. A particle in the flaky particulate material comprises a substrate particle made of one material selected from the group consisting of mica, a synthetic mica, sericite, talc, barium sulfate and aluminum oxide. The present invention provides a flaky particulate material that gives skin excellent smoothness, a natural tone, and a matt appearance. The flaky particulate material of the present invention gives a cosmetic composition which provides great comfort of use, and an excellent appearance.Type: ApplicationFiled: February 13, 2007Publication date: April 22, 2010Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.Inventors: Keiji Ono, Takuro Ashida, Hiroyuki Izumikawa, Hirobumi Yoshida