Patents by Inventor Yoshiaki Sakatani
Yoshiaki Sakatani 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: 11739264Abstract: The present disclosure relates to a laminated structure comprising a film comprising a light-emitting perovskite compound, a first substrate, and a second substrate, in which the film is positioned between the first substrate and the second substrate.Type: GrantFiled: February 1, 2022Date of Patent: August 29, 2023Assignees: Sumitomo Chemical Company, Limited, Nichia CorporationInventors: Shota Naito, Yoshiaki Sakatani
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Patent number: 11621299Abstract: The present disclosure relates to a composition including a light-emitting perovskite compound (1) which includes constituent components A, B, and X, and a silazane or modified product thereof (2).Type: GrantFiled: May 17, 2018Date of Patent: April 4, 2023Assignee: Sumitomo Chemical Company, LimitedInventors: Shota Naito, Takashi Arimura, Yoshiaki Sakatani
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Publication number: 20220259499Abstract: The present disclosure relates to a laminated structure comprising a film comprising a light-emitting perovskite compound, a first substrate, and a second substrate, in which the film is positioned between the first substrate and the second substrate.Type: ApplicationFiled: February 1, 2022Publication date: August 18, 2022Applicant: Sumitomo Chemical Company, LimitedInventors: Shota Naito, Yoshiaki Sakatani
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Patent number: 11306243Abstract: A light-emitting composition including: semiconductor fine particles as component (1); and a compound represented by Formula (X) or a modified product thereof as component (2).Type: GrantFiled: June 22, 2018Date of Patent: April 19, 2022Assignee: Sumitomo Chemical Company, LimitedInventors: Shota Naito, Yoshiaki Sakatani
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Patent number: 11268023Abstract: The present invention relates to a mixture of a compound (1) and a compound (2). The compound (1) is a light-emitting perovskite compound which includes components A, B, and X, and the compound (2) is a light-emitting indium compound or light-emitting cadmium compound. The component A indicates a component positioned at each vertex of a hexahedron having the component B at the center in a perovskite type crystal structure and is a monovalent cation, the component X indicates a component positioned at each vertex of an octahedron having the component B at the center in the perovskite type crystal structure and is one or more kinds of anions selected from the group consisting of a halide ion and a thiocyanate ion, and the component B indicates a component positioned at the centers of the hexahedron where the component A is disposed at each vertex and the octahedron where the component X is disposed at each vertex in the perovskite type crystal structure and is a metal ion.Type: GrantFiled: March 8, 2018Date of Patent: March 8, 2022Assignee: Sumitomo Chemical Company, LimitedInventors: Shota Naito, Yoshiaki Sakatani
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Publication number: 20210122976Abstract: The present invention relates to a mixture of a compound (1) and a compound (2). The compound (1) is a light-emitting perovskite compound which includes components A, B, and X, and the compound (2) is a light-emitting indium compound or light-emitting cadmium compound. The component A indicates a component positioned at each vertex of a hexahedron having the component B at the center in a perovskite type crystal structure and is a monovalent cation, the component X indicates a component positioned at each vertex of an octahedron having the component B at the center in the perovskite type crystal structure and is one or more kinds of anions selected from the group consisting of a halide ion and a thiocyanate ion, and the component B indicates a component positioned at the centers of the hexahedron where the component A is disposed at each vertex and the octahedron where the component X is disposed at each vertex in the perovskite type crystal structure and is a metal ion.Type: ApplicationFiled: March 8, 2018Publication date: April 29, 2021Applicant: Sumitomo Chemical Company, LimitedInventors: Shota Naito, Yoshiaki Sakatani
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Publication number: 20200181484Abstract: A light-emitting composition including: semiconductor fine particles as component (1); and a compound represented by Formula (X) or a modified product thereof as component (2).Type: ApplicationFiled: June 22, 2018Publication date: June 11, 2020Applicant: Sumitomo Chemical Company, LimitedInventors: Shota Naito, Yoshiaki Sakatani
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Publication number: 20200168666Abstract: The present invention relates to a composition including a light-emitting perovskite compound (1) which includes constituent components A, B, and X, and a silazane or modified product thereof (2). The constituent component A indicates a component positioned at each vertex of a hexahedron having the constituent component B at the center in a perovskite type crystal structure and is a monovalent cation, the constituent component X indicates a component positioned at each vertex of an octahedron having the constituent component B at the center in the perovskite type crystal structure and is at least one anion selected from the group consisting of a halide ion and a thiocyanate ion, and the constituent component B indicates a component positioned at the centers of the hexahedron where the constituent component A is disposed at each vertex and the octahedron where the constituent component X is disposed at each vertex in the perovskite type crystal structure and is a metal ion.Type: ApplicationFiled: May 17, 2018Publication date: May 28, 2020Applicant: Sumitomo Chemical Company, LimitedInventors: Shota Naito, Takashi Arimura, Yoshiaki Sakatani
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Publication number: 20120302429Abstract: Dispersion of noble metal-supported photocatalyst particles, which exhibits high photocatalytic activity, and also has stable dispersibility that enables prevention of precipitation of photocatalyst particles in a dispersion medium; a method for producing the same; a hydrophilizing agent; and a photocatalytic functional product.Type: ApplicationFiled: November 30, 2010Publication date: November 29, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kohei Sogabe, Hiroyuki Ando, Yoshiaki Sakatani
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Publication number: 20120294923Abstract: An object of the present invention is to provide an antiviral agent which exhibits high antiviral activity even under irradiation with visible light and is capable of detoxifying a virus. The antiviral agent according to the present application is composed of a dispersion containing noble metals and photocatalyst particles as supported by the noble metals, the dispersion containing 0.01 part by mass to 1 part by mass of noble metal atoms based on 100 parts by mass of photocatalyst particles.Type: ApplicationFiled: November 30, 2010Publication date: November 22, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yuko Suyasu, Yoshiaki Sakatani, Kazuaki Takehara
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Patent number: 8298979Abstract: A sol of the present invention is a sol comprising zirconium oxalate compound as a dispersoid, wherein a mol ratio of oxalic acid to Zr (oxalic acid/Zr) is from 1.2 to 3 and a particle diameter D50 of the dispersoid is from 10 to 100 nm. This sol is produced by adding oxalic acid to a dispersion liquid of zirconium hydroxide, and the addition of oxalic acid is carried out in twice.Type: GrantFiled: June 8, 2009Date of Patent: October 30, 2012Assignee: Daiichi Kigenso Kagaku Kogyo Co., Ltd.Inventors: Yoshiaki Sakatani, Fumiyuki Takasaki
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Patent number: 8017238Abstract: To provide a tungsten oxide photocatalyst which shows a high photocatalytic activity by irradiating with visible light even under the environment where ultraviolet light is not irradiated, the tungsten oxide photocatalyst has tungsten oxide particles and Pt particles having a primary particle size of 3 to 20 nm supported on the surface of the tungsten oxide particles in an amount of 0.03 to 5 parts by weight based on 100 parts by weight of the tungsten oxide particles.Type: GrantFiled: March 28, 2008Date of Patent: September 13, 2011Assignees: National University Corporation Hokkaido University, Sumitomo Chemical Company, LimitedInventors: Bunsho Ohtani, Ryu Abe, Yoshiaki Sakatani, Makoto Murata, Hiroaki Nishimine
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Publication number: 20110082026Abstract: The present invention provides a photocatalyst composite in which brittleness and ease of coming-off of a photocatalyst layer are reduced. The photocatalyst composite includes a base material, at least the surface of which is formed of a plastic-deformable solid material; an inorganic particle layer containing inorganic particles disposed on the surface of the base material; and a photocatalyst layer containing a photocatalyst disposed on the surface of the inorganic particle layer; wherein at least one portion of voids in the inorganic particle layer is filled with the solid material, and the surface of the inorganic particle layer is coated with the solid material except for at least one portion.Type: ApplicationFiled: September 14, 2010Publication date: April 7, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshiaki SAKATANI, Kohei Sogabe, Makiko Hara, Hitoshi Takami
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Publication number: 20110045964Abstract: A method for producing a photocatalytic, which can produce a photocatalyst showing high photocatalytic activity, is provided. The present invention relates to a method for producing noble metal-supported photocatalyst particles wherein a noble metal is supported on the surface of the photocatalyst particles, and a method for producing a dispersion of the noble metal-supported photocatalyst particles, the methods comprising steps of: blowing an inert gas into a raw dispersion in which the photocatalyst particles are dispersed and a precursor of the noble metal is dissolved in a dispersion medium; and irradiating the raw dispersion with light having energy larger than that of a bandgap of the photocatalyst particles, thereby supporting the noble metal on the surface of the photocatalyst particles.Type: ApplicationFiled: August 5, 2010Publication date: February 24, 2011Applicants: National University Corporation Hokkaido University, Sumitomo Chemical Company, LimitiedInventors: Ryu ABE, Naoko KANOME, Kohei SOGABE, Yoshiaki SAKATANI
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Publication number: 20100304954Abstract: The present invention provides a photocatalyst dispersion liquid comprising at least a titanium oxide particle which is obtained by a sulfate process and in which the content of sulfuric acid in terms of elemental sulfur is 1000 ppm or less, a tungsten oxide particle, and a dispersion medium for dispersing these particles, wherein a content ratio of the titanium oxide particle to the tungsten oxide particle is 1:8 to 8:1 by mass ratio, and further provides a photocatalyst functional product comprising a photocatalyst layer formed using the photocatalyst dispersion liquid.Type: ApplicationFiled: May 28, 2010Publication date: December 2, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kohei Sogabe, Kensen Okusako, Yoshiaki Sakatani
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Publication number: 20100199887Abstract: The hydrophilizing agent of the present invention includes titanium oxide particles, tungsten oxide particles, phosphoric acid (salt) and dispersion medium, and the molar ratio of the phosphoric acid (salt) to the titanium oxide is from 0.001 to 0.2. In a producing method of such a hydrophilizing agent, titanium oxide particles are dispersed in dispersion medium containing phosphoric acid (salt) dissolved, and the obtained titanium oxide particle dispersion is mixed with the tungsten oxide particles.Type: ApplicationFiled: February 2, 2010Publication date: August 12, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Yoshiaki SAKATANI
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Publication number: 20090305878Abstract: A sol of the present invention is a sol comprising zirconium oxalate compound as a dispersoid, wherein a mol ratio of oxalic acid to Zr (oxalic acid/Zr) is from 1.2 to 3 and a particle diameter D50 of the dispersoid is from 10 to 100 nm. This sol is produced by adding oxalic acid to a dispersion liquid of zirconium hydroxide, and the addition of oxalic acid is carried out in twice.Type: ApplicationFiled: June 8, 2009Publication date: December 10, 2009Applicants: SUMITMOTO CHEMICAL COMPANY, LIMITED, DAIICHI KIGENSO KAGAKU KOGYO CO., LTDInventors: Yoshiaki SAKATANI, Fumiyuki TAKASAKI
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Publication number: 20090305879Abstract: A photocatalyst dispersion liquid contains titanium oxide particles, tungsten oxide particles, a phosphoric acid (salt) and a dispersion medium, and a containing amount of the phosphoric acid (salt) is from 0.001 mol times to 0.2 mol times with respect to the titanium oxide particles. In this photocatalyst dispersion liquid, the aggregation of the particles is suppressed and thus solid-liquid separation is not easily generated. According to this process for producing a photocatalyst dispersion liquid, titanium oxide particles are dispersed in a dispersion medium containing a phosphoric acid (salt) dissolved therein to obtain a titanium oxide particle dispersion liquid, and then tungsten oxide particles are mixed in the titanium oxide particle dispersion liquid.Type: ApplicationFiled: June 4, 2009Publication date: December 10, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshiaki SAKATANI, Kensen Okusako, Makoto Murata
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Publication number: 20090229967Abstract: To provide a process for swiftly decomposing a volatile aromatic compound in a vapor phase. The process includes the step of bringing the volatile aromatic compound into contact with a photocatalyst layer under light irradiation. In the process, the photocatalyst layer is formed by coating a photocatalyst dispersion liquid on a substrate. The photocatalyst dispersion liquid is obtained by dispersing titanium oxide photocatalyst particles and tungsten oxide photocatalyst particles in a dispersion medium. The surfaces of the titanium oxide photocatalyst particles are charged in the same polarity as the surfaces of the tungsten oxide photocatalyst particles are.Type: ApplicationFiled: March 12, 2009Publication date: September 17, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Yoshiaki SAKATANI
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Patent number: 7521391Abstract: A photocatalytic coating composition comprising a photocatalyst, a silicon alkoxide, a zirconium compound, colloidal silica, and a liquid medium, wherein a content of the zirconium compound in terms of zirconium atoms is 0.3 to 3 times by mole a content of the silicon alkoxide in terms of silicon atoms, which can form a coating film of a photocatalyst with a high adhesion strength to a substrate.Type: GrantFiled: March 16, 2005Date of Patent: April 21, 2009Assignees: Sumitomo Chemical Company, Limited, Asahi Chemical Company, LimitedInventors: Yoshiaki Sakatani, Seiichi Sakaguchi