Patents by Inventor Tsuguo Koyanagi
Tsuguo Koyanagi 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: 10358353Abstract: Silica particles calcined in a calcination step are supplied in a swirling flow generated by a gas introduced in a disintegration container and disintegrated therein, whereby the silica particles can be easily disintegrated and there can be obtained disintegrated silica particles having both low hygroscopicity and high dispersibility in resin. In addition, the introduction of dehumidified air (gas) during the disintegration reduces hygroscopicity and greatly improves dispersibility in resin. Furthermore, performing heating treatment (calcination) again after the disintegration causes the surface modification of the disintegrated silica particles, greatly improving hygroscopicity and dispersibility in resin. The resin composition obtained in this manner including silica particles provides good injectability and filterability when used for an underfill material for semiconductors and an in-plane spacer or sealing spacer of liquid crystal displays.Type: GrantFiled: August 1, 2014Date of Patent: July 23, 2019Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Ryo Muraguchi, Miki Egami, Mitsuaki Kumazawa, Masanobu Taniguchi, Tsuguo Koyanagi, Michio Komatsu, Kazutaka Egami
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Patent number: 9856407Abstract: A water-repellent transparent coating-substrate assembly includes a substrate and a water-repellent transparent coating disposed on a surface of the substrate, the transparent coating including an inorganic oxide fine particle layer containing inorganic oxide fine particles, and an overcoating layer disposed on the inorganic oxide fine particle layer, the surface of the water-repellent transparent coating having irregularities including depressions and protrusions in which the protrusions have an average height (TF) in the range of 30 to 500 nm and an average protrusion interval (pitch width) (WF) in the range of 50 to 1000 nm, the water-repellent transparent coating having a water contact angle in the range of 130 to 180°.Type: GrantFiled: December 24, 2013Date of Patent: January 2, 2018Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Yuhko Hakoshima, Masayuki Matsuda, Ryo Muraguchi, Kazutaka Egami, Tsuguo Koyanagi, Mitsuaki Kumazawa, Satoshi Yoshida, Yuji Tawarasako
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Patent number: 9468918Abstract: An aluminum phosphate-modified metal-supported crystalline silicoaluminophosphate NOx-reducing catalyst includes metal-supported crystalline silicoaluminophosphate particles having a surface modified with aluminum phosphate.Type: GrantFiled: May 1, 2015Date of Patent: October 18, 2016Assignee: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Tomohiro Mitsui, Yuka Seto, Takaki Mizuno, Tsuguo Koyanagi
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Publication number: 20160159654Abstract: Silica particles calcined in a calcination step are supplied in a swirling flow generated by a gas introduced in a disintegration container and disintegrated therein, whereby the silica particles can be easily disintegrated and there can be obtained disintegrated silica particles having both low hygroscopicity and high dispersibility in resin. In addition, the introduction of dehumidified air (gas) during the disintegration reduces hygroscopicity and greatly improves dispersibility in resin. Furthermore, performing heating treatment (calcination) again after the disintegration causes the surface modification of the disintegrated silica particles, greatly improving hygroscopicity and dispersibility in resin. The resin composition obtained in this manner including silica particles provides good injectability and filterability when used for an underfill material for semiconductors and an in-plane spacer or sealing spacer of liquid crystal displays.Type: ApplicationFiled: August 1, 2014Publication date: June 9, 2016Inventors: Ryo Muraguchi, Miki Egami, Mitsuaki Kumazawa, Masanobu Taniguchi, Tsuguo Koyanagi, Michio Komatsu, Kazutaka Egami
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Publication number: 20150329755Abstract: A water-repellent transparent coating-substrate assembly includes a substrate and a water-repellent transparent coating disposed on a surface of the substrate, the transparent coating including an inorganic oxide fine particle layer containing inorganic oxide fine particles, and an overcoating layer disposed on the inorganic oxide fine particle layer, the surface of the water-repellent transparent coating having irregularities including depressions and protrusions in which the protrusions have an average height (TF) in the range of 30 to 500 nm and an average protrusion interval (pitch width) (WF) in the range of 50 to 1000 nm, the water-repellent transparent coating having a water contact angle in the range of 130 to 180°.Type: ApplicationFiled: December 24, 2013Publication date: November 19, 2015Inventors: Yuhko Hakoshima, Masayuki Matsuda, Ryo Muraguchi, Kazutaka Egami, Tsuguo Koyanagi, Mitsuaki Kumazawa, Satoshi Yoshida, Yuji Tawarasako
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Publication number: 20150231619Abstract: An aluminum phosphate-modified metal-supported crystalline silicoaluminophosphate NOx-reducing catalyst includes metal-supported crystalline silicoaluminophosphate particles having a surface modified with aluminum phosphate.Type: ApplicationFiled: May 1, 2015Publication date: August 20, 2015Inventors: Tomohiro MITSUI, Yuka MORISHITA, Takaki MIZUNO, Tsuguo KOYANAGI
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Patent number: 8486433Abstract: Present invention provides an antibacterial deodorant with antibacterial characteristics and high deodorizing capability. The antibacterial deodorant is inorganic oxide particles comprising a metal component and an inorganic oxide other than the metal component, the inorganic oxide includes titanium oxide and silica and/or zirconia, and the titanium oxide is crystalline titanium oxide. A content of the metal component in the inorganic oxide particles is in a range from 0.1 to 30% by weight as converted to an oxide thereof, and an average particle diameter of the inorganic oxide particle is in a range from 2 to 500 nm.Type: GrantFiled: April 29, 2005Date of Patent: July 16, 2013Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Atsushi Tanaka, Tsuguo Koyanagi
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Patent number: 8080209Abstract: An exhaust gas treatment apparatus includes a device (A) which is provided in an exhaust system and which selectively reduces NOx in an exhaust gas and a device (B) which is disposed upstream of the device (A) and which decomposes urea and supplies ammonia as a NOx reducing gas, the device (B) including a urea decomposition catalyst. The catalyst is [1] a zeolite catalyst which is composed of granular molded bodies including zeolite particles or which includes a catalyst layer composed of zeolite particles disposed on a support, or [2] a honeycomb catalyst or a membranous catalyst in which metal oxide particulates adhere to a conductive honeycomb substrate or netlike support, and the metal oxide particulates are composed of at least one oxide of a metal selected from the group consisting of Na, Mg, Ca, Ba, La, Ce, Ti, Zr, V, Cr, Mo, W, Mn, Zn, Al, Si, P, Sb, Cu, Fe, Ru, Co, and Re.Type: GrantFiled: February 24, 2009Date of Patent: December 20, 2011Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Katsuhiro Shirono, Tsuguo Koyanagi
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Publication number: 20110207598Abstract: Disclosed is a metal-supported catalyst produced by (a) preparing a dispersion of crystalline silicoaluminophosphate particles; (b) mixing an aqueous active ingredient metal compound solution into the dispersion; (c) spray-drying the mixture; (d) washing the spray-dried product and (e) heat-treating (calcining) the washed product at 400 to 900° C. Also disclosed is an aluminum phosphate-modified metal-supported crystalline silicoaluminophosphate catalyst having a content of aluminum phosphate in the catalyst of 0.1 to 40% by weight in terms of Al2O3+P2O5 based on the metal-supported crystalline silicoaluminophosphate particles.Type: ApplicationFiled: December 17, 2010Publication date: August 25, 2011Applicant: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Tomohiro Mitsui, Yuka Morishita, Takaki Mizuno, Tsuguo Koyanagi
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Patent number: 7901742Abstract: A method for forming a metal oxide fine particle layer, by which a metal oxide fine particle layer having uniformity and excellent in adhesion, abrasion resistance, strength, etc. can be formed easily compared with the conventional plating method, CVD method, liquid coating method, electrodeposition method or the like. The method comprises immersing a conductive substrate in a dispersion of metal oxide fine particles and fibrous fine particles and applying a direct-current voltage to the conductive substrate and the dispersion. The fibrous fine particles have a length (L) of 50 nm to 10 ?m, a diameter (D) of 10 nm to 2 ?m and an aspect ratio (L)/(D) of 5 to 1,000. The content of the fibrous fine particles in the dispersion is in the range of 0.1 to 20% by weight in terms of solids content, based on the metal oxide fine particles.Type: GrantFiled: June 18, 2007Date of Patent: March 8, 2011Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Katsuhiro Shirono, Takaki Mizuno, Tsuguo Koyanagi
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Patent number: 7595276Abstract: The present invention provides a catalytic composition for oxychlorination excellent in the fluidity, the capability of suppressing lowering of the fluidity, and the attrition resistance as well as in the selectivity for EDC and the capability of suppressing combustion of ethylene. The catalytic composition for oxychlorination contains silica alumina particles in the range from 5 to 40 wt % when expressed as an oxide thereof, copper in the range from 5 to 20 wt % when expressed as an oxide thereof (CuO), and alumina as a carrier in the range from 40 to 90 wt % when expressed as that of Al2O3. The silica alumina particles are prepared by coating silica particles with alumina, and have the average particle diameter in the range from 3 to 100 nm. A content of alumina in the silica alumina particles is in the range from 0.1 to 10 wt %.Type: GrantFiled: July 29, 2008Date of Patent: September 29, 2009Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Takashi Kodama, Tsuguo Koyanagi
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Publication number: 20090226627Abstract: A method for forming a metal oxide fine particle layer, by which a metal oxide fine particle layer having uniformity and excellent in adhesion, abrasion resistance, strength, etc. can be formed easily compared with the conventional plating method, CVD method, liquid coating method, electrodeposition method or the like. The method comprises immersing a conductive substrate in a dispersion of metal oxide fine particles and fibrous fine particles and applying a direct-current voltage to the conductive substrate and the dispersion. The fibrous fine particles have a length (L) of 50 nm to 10 ?m, a diameter (D) of 10 nm to 2 ?m and an aspect ratio (L)/(D) of 5 to 1,000. The content of the fibrous fine particles in the dispersion is in the range of 0.1 to 20% by weight in terms of solids content, based on the metal oxide fine particles.Type: ApplicationFiled: June 18, 2007Publication date: September 10, 2009Applicant: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Katsuhiro Shirono, Takaki Mizuno, Tsuguo Koyanagi
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Patent number: 7582373Abstract: An electrolyte membrane includes inorganic oxide particles having proton conductivity, and an organic resin or an inorganic matrix component. The inorganic oxide particles having proton conductivity preferably comprise hydrated antimony oxide particles represented by the following formula (1) and have an average particle diameter of 5 to 50 nm, and the content of the hydrated antimony oxide particles is preferably in the range of 5 to 80% by weight in terms of an oxide (Sb2O5); Sb2O5.nH2O??(1) wherein n is 0.1 to 5. The electrolyte membrane provides a fuel cell which exhibits high cell performance even after prolonged operation and/or at high operating temperatures.Type: GrantFiled: November 8, 2002Date of Patent: September 1, 2009Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Katsuhiro Shirono, Tsuguo Koyanagi, Michio Komatsu
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Publication number: 20090214397Abstract: An exhaust gas treatment apparatus includes a device (A) which is provided in an exhaust system and which selectively reduces NOx in an exhaust gas and a device (B) which is disposed upstream of the device (A) and which decomposes urea and supplies ammonia as a NOx reducing gas, the device (B) including a urea decomposition catalyst. The catalyst is [1] a zeolite catalyst which is composed of granular molded bodies including zeolite particles or which includes a catalyst layer composed of zeolite particles disposed on a support, or [2] a honeycomb catalyst or a membranous catalyst in which metal oxide particulates adhere to a conductive honeycomb substrate or netlike support, and the metal oxide particulates are composed of at least one oxide of a metal selected from the group consisting of Na, Mg, Ca, Ba, La, Ce, Ti, Zr, V, Cr, Mo, W, Mn, Zn, Al, Si, P, Sb, Cu, Fe, Ru, Co, and Re.Type: ApplicationFiled: February 24, 2009Publication date: August 27, 2009Applicant: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Katsuhiro Shirono, Tsuguo Koyanagi
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Publication number: 20090036299Abstract: The present invention provides a catalytic composition for oxychlorination excellent in the fluidity, the capability of suppressing lowering of the fluidity, and the attrition resistance as well as in the selectivity for EDC and the capability of suppressing combustion of ethylene. The catalytic composition for oxychlorination contains silica alumina particles in the range from 5 to 40 wt % when expressed as an oxide thereof, copper in the range from 5 to 20 wt % when expressed as an oxide thereof (CuO), and alumina as a carrier in the range from 40 to 90 wt % when expressed as that of Al2O3. The silica alumina particles are prepared by coating silica particles with alumina, and have the average particle diameter in the range from 3 to 100 nm. A content of alumina in the silica alumina particles is in the range from 0.1 to 10 wt %.Type: ApplicationFiled: July 29, 2008Publication date: February 5, 2009Applicant: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Takashi Kodama, Tsuguo Koyanagi
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Patent number: 7431903Abstract: The process for preparing tubular titanium oxide particles comprises subjecting a water dispersion sol, which is obtained by dispersing (i) titanium oxide particles and/or (ii) titanium oxide type composite oxide particles comprising titanium oxide and an oxide other than titanium oxide in water, said particles having an average particle diameter of 2 to 100 nm, to hydrothermal treatment in the presence of an alkali metal hydroxide. After the hydrothermal treatment, reduction treatment (including nitriding treatment) may be carried out. The tubular titanium oxide particles obtained in this process are useful as catalysts, catalyst carriers, adsorbents, photocatalysts, decorative materials, optical materials and photoelectric conversion materials. Especially when the particles are used for semiconductor films for photovoltaic cells or photocatalysts, prominently excellent effects are exhibited.Type: GrantFiled: October 29, 2002Date of Patent: October 7, 2008Assignee: Catalysts & Chemicals Industries Co., Ltd.Inventors: Tsuguo Koyanagi, Katsuhiro Shirono, Atsushi Tanaka, Michio Komatsu
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Patent number: 7420117Abstract: A photovoltaic cell includes a substrate having an electrode layer on the surface and having a porous metal oxide semiconductor film which is formed on the electrode layer and on which a photosensitizer is adsorbed, a substrate having an electrode layer on the surface, both of said substrates being arranged in such a manner that the electrode layer and the electrode layer face each other, and an electrolyte layer provided between the semiconductor film and the electrode layer, wherein the semiconductor film contains an inhibitor of back current, and at least one pair of substrate and electrode layer thereon have transparency. The photovoltaic cell is capable of inhibiting back current and decomposition of a spectrosensitizing dye caused by the ultraviolet rays, has high photoelectric conversion efficiency and is capable of generating high electromotive force.Type: GrantFiled: April 17, 2003Date of Patent: September 2, 2008Assignee: Catalysts & Chemicals Industries Co., Ltd.Inventors: Tsuguo Koyanagi, Michael Graetzel
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Patent number: 7192986Abstract: An inorganic compound sol comprises a dispersion medium and, dispersed therein, inorganic compound particulates whose surface has been modified by an organic compound exhibiting a molecular polarizability of from 2×10?40 to 850×10?40C2m2J?2. The inorganic compound sol modified by an organic compound possesses a desirable affinity with the dispersion media, providing excellent dispersion stability in solvents while avoiding aggregation of particulates.Type: GrantFiled: March 11, 1998Date of Patent: March 20, 2007Assignee: Catalysts & Chemicals Industries Co., Ltd.Inventors: Tsuguo Koyanagi, Hiroyasu Nishida
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Patent number: 7163892Abstract: There is provided a process for producing an integrated circuit, wherein not only can conductive fine particles be deposited efficiently and densely in minute wiring channels and connecting holes but also a circuit of low wiring resistance and high density can be formed and wherein a high-degree integration can be achieved to thereby bring about an economic advantage. In particular, there is provided a process for producing an integrated circuit, comprising coating a substrate provided with wiring channels with a coating liquid for integrated circuit formation containing conductive fine particles to thereby form an integrated circuit on the substrate, wherein the coating liquid for integrated circuit formation while being exposed to ultrasonic waves is applied to the wiring channels.Type: GrantFiled: April 23, 2001Date of Patent: January 16, 2007Assignee: Catalysts & Chemicals Industries Co., Ltd.Inventors: Atsushi Tonai, Toshiharu Hirai, Tsuguo Koyanagi, Masayuki Matsuda, Michio Komatsu
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Publication number: 20060286051Abstract: Present invention provides an antibacterial deodorant with antibacterial characteristics and high deodorizing capability. The antibacterial deodorant is inorganic oxide particles comprising a metal component and an inorganic oxide other than the metal component, the inorganic oxide includes titanium oxide and silica and/or zirconia, and the titanium oxide is crystalline titanium oxide. A content of the metal component in the inorganic oxide particles is in a range from 0.1 to 30% by weight as converted to an oxide thereof, and an average particle diameter of the inorganic oxide particle is in a range from 2 to 500 nm.Type: ApplicationFiled: April 29, 2005Publication date: December 21, 2006Applicant: CATALYSTS & CHEMICALS INDUSTRIES CO., LTD.Inventors: Atsushi Tanaka, Tsuguo Koyanagi