Patents by Inventor Toshiharu Miyamura
Toshiharu Miyamura 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: 8529843Abstract: A fibrous structure (10) of the present invention includes: long fibers (1) composed of an inorganic material; and short fibers (2) composed of the inorganic material and shorter than the long fibers (1), wherein at least one of the long fibers (1) and the short fibers (2) includes catalyst components (4), and a three-dimensional net-like structure is formed by the long fibers (1) and the short fibers (2).Type: GrantFiled: September 12, 2007Date of Patent: September 10, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Masahiro Takaya, Kouji Masuda, Junji Ito, Toshiharu Miyamura, Yasunari Hanaki
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Patent number: 8455390Abstract: An exhaust gas purifying catalyst includes a monolithic substrate (2), and a transition metal oxide layer (3) formed in the monolithic substrate (2). The transition metal oxide layer (3) contains transition metal oxide powder including: transition metal oxide particles (10); a first compound (20) on which the transition metal oxide particles (10) are supported; and a second compound (30) that surrounds a single body or an aggregate of the transition metal oxide particles (10) and the first compound (20).Type: GrantFiled: June 23, 2009Date of Patent: June 4, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Hiroto Kikuchi, Masanori Nakamura, Hironori Wakamatsu, Katsuo Suga, Toshiharu Miyamura, Jun Ikezawa, Tetsuro Naito, Junji Ito
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Patent number: 8158195Abstract: A catalytic converter includes: a three-dimensional structural support having a plurality of cells partitioned by porous cell walls, in which a pore diameter of the cell walls is 10 ?m to 50 ?m and porosity of the cell walls is 40 vol % or more; and a catalyst-coated layer containing a catalyst component. The catalyst-coated layer is coated on surfaces of the cell walls of the three-dimensional structural support. 50 mass % or more of a total supported amount of the catalyst component on the three-dimensional structural support is present in a region from the surfaces of the cell walls of the three-dimensional structural support to surfaces of the catalyst-coated layer.Type: GrantFiled: January 29, 2008Date of Patent: April 17, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Hideaki Morisaka, Masahiro Takaya, Toshiharu Miyamura, Takeshi Yamauchi, Yasunari Hanaki
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Patent number: 8080494Abstract: A catalyst 1 has a heat-resistant support 2 selected from among Al2O3, SiO2, ZrO2, and TiO2, and a first metal 4 supported on an outer surface of the support 2, and included by an inclusion material 3 containing a component of the support 2.Type: GrantFiled: December 5, 2005Date of Patent: December 20, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Hirofumi Yasuda, Katsuo Suga, Makoto Aoyama, Toshiharu Miyamura
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Patent number: 7977276Abstract: Disclosed is an exhaust gas purifying catalyst exhibiting excellent purification performance for a long period of time by suppressing coagulation of a noble metal. A catalyst powder comprises a noble metal and first and second compounds. In the catalyst powder, the first compound carries the noble metal and is separated from another first compound carrying a noble metal by the second compound. At least one catalyst layer comprising the catalyst powder is formed on an inner surface of a substrate. The catalyst layer has fine pores. A fine pore volume of fine pores having a fine pore diameter of greater than 0.1 ?m to less than or equal to 1 ?m is 10% to 60% of the fine pore volume of fine pores having a pore diameter of 1.0 ?m or less.Type: GrantFiled: April 4, 2008Date of Patent: July 12, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Hiroto Kikuchi, Katsuo Suga, Masanori Nakamura, Hironori Wakamatsu, Kazuyuki Shiratori, Toshiharu Miyamura, Jun Ikezawa
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Publication number: 20110094211Abstract: An exhaust gas purifying catalyst includes a monolithic substrate (2), and a transition metal oxide layer (3) formed in the monolithic substrate (2). The transition metal oxide layer (3) contains transition metal oxide powder including: transition metal oxide particles (10); a first compound (20) on which the transition metal oxide particles (10) are supported; and a second compound (30) that surrounds a single body or an aggregate of the transition metal oxide particles (10) and the first compound (20).Type: ApplicationFiled: June 23, 2009Publication date: April 28, 2011Applicant: NISSAN MOTOR CO., LTD.Inventors: Hiroto Kikuchi, Masanori Nakamura, Hironori Wakamatsu, Katsuo Suga, Toshiharu Miyamura, Jun Ikezawa, Tetsuro Naito, Junji Ito
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Publication number: 20110034331Abstract: An exhaust gas purifying catalyst including: a plurality of first compounds 5 which have precious metal particles 3 supported thereon and are formed into a particle shape; and second compounds 7 which are arranged among the plurality of first compounds 5 and separate the first compounds 5 from one another, wherein pore volumes of the precious metal particles 3, the first compounds 5 and the second compounds 7 are 0.24 to 0.8 cm3/g.Type: ApplicationFiled: October 13, 2010Publication date: February 10, 2011Inventors: Hiroto KIKUCHI, Masanori Nakamura, Hironori Wakamatsu, Hideaki Morisaka, Hirofumi Yasuda, Katsuo Suga, Kazuyuki Shiratori, Kenji Uesugi, Toshiharu Miyamura
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Patent number: 7851405Abstract: An exhaust gas purifying catalyst that includes noble metal particles, first compounds which support the noble metal particles and suppress movement of the noble metal particles, and second compounds which encapsulate the noble metal particles and the first compounds. The second compounds suppress the movement of the noble metal particles and suppress coagulation of the first compounds following mutual contact of the first compounds.Type: GrantFiled: January 25, 2008Date of Patent: December 14, 2010Assignees: Nissan Motor co., Ltd., Renault s.a.s.Inventors: Hironori Wakamatsu, Maki Shimada, Masanori Nakamura, Katsuo Suga, Hiroto Kikuchi, Tetsuro Naito, Toshiharu Miyamura, Jun Ikezawa
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Patent number: 7833930Abstract: An exhaust gas purifying catalyst including: a plurality of first compounds 5 which have precious metal particles 3 supported thereon and are formed into a particle shape; and second compounds 7 which are arranged among the plurality of first compounds 5 and separate the first compounds 5 from one another, wherein pore volumes of the precious metal particles 3, the first compounds 5 and the second compounds 7 are 0.24 to 0.8 cm3/g.Type: GrantFiled: April 12, 2007Date of Patent: November 16, 2010Assignees: Nissan Motor Co., Ltd., Renault s.a.s.Inventors: Hiroto Kikuchi, Masanori Nakamura, Hironori Wakamatsu, Hideaki Morisaka, Hirofumi Yasuda, Katsuo Suga, Kazuyuki Shiratori, Kenji Uesugi, Toshiharu Miyamura
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Patent number: 7723259Abstract: A particulate matter oxidizing catalyst includes: at least one metal selected from the group consisting of: gallium, manganese, iron, cobalt, nickel, copper, yttrium, zirconium, niobium, molybdenum, silver, lanthanum, praseodymium, neodymium and gold; and cerium, wherein a first oxide includes: the cerium, and a first metal which is at least one element selected from the group consisting of: gallium, manganese, iron, cobalt and nickel, wherein a second oxide includes: the cerium, and a second metal which is at least one element selected from the group consisting of: praseodymium, zirconium and aluminum, and wherein the second oxide and the first oxide have a content ratio of second oxide/(first oxide+second oxide)=0.1 by mass to 0.8 by mass.Type: GrantFiled: November 7, 2007Date of Patent: May 25, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Maki Shimada, Junji Ito, Toshiharu Miyamura, Yasunari Hanaki, Shigeru Chida, Shinichi Akaishi
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Patent number: 7718567Abstract: An exhaust gas purging catalyst, includes: an integrated carrier; and a catalyst coat layer formed on the integrated carrier. The catalyst coat layer includes a catalyst component and meets the following expression (A): P?0.17W?0.04 - - - (A). P denotes a summation (ml) of a capacity of a void per mass (g) of the catalyst coat layer. The void has a pore diameter of 0.1 ?m to 1 ?m. W denotes a volume (ml) of the catalyst coat layer per the mass (g) of the catalyst coat layer.Type: GrantFiled: December 14, 2007Date of Patent: May 18, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Yasunari Hanaki, Toshiharu Miyamura, Haruhiko Shibayama
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Publication number: 20100028221Abstract: A fibrous structure (10) of the present invention includes: long fibers (1) composed of an inorganic material; and short fibers (2) composed of the inorganic material and shorter than the long fibers (1), wherein at least one of the long fibers (1) and the short fibers (2) includes catalyst components (4), and a three-dimensional net-like structure is formed by the long fibers (1) and the short fibers (2).Type: ApplicationFiled: September 12, 2007Publication date: February 4, 2010Inventors: Masahiro Takaya, Kouji Masuda, Junji Ito, Toshiharu Miyamura, Yasunari Hanaki
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Publication number: 20090239739Abstract: A catalyst 1 has a heat-resistant support 2 selected from among Al2O3, SiO2, ZrO2, and TiO2, and a first metal 4 supported on an outer surface of the support 2, and included by an inclusion material 3 containing a component of the support 2.Type: ApplicationFiled: December 5, 2005Publication date: September 24, 2009Inventors: Hirofumi Yasuda, Katsuo Suga, Makoto Aoyama, Toshiharu Miyamura
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Publication number: 20090088320Abstract: An exhaust gas purifying catalyst including: a plurality of first compounds 5 which have precious metal particles 3 supported thereon and are formed into a particle shape; and second compounds 7 which are arranged among the plurality of first compounds 5 and separate the first compounds 5 from one another, wherein pore volumes of the precious metal particles 3, the first compounds 5 and the second compounds 7 are 0.24 to 0.8 cm3/g.Type: ApplicationFiled: April 12, 2007Publication date: April 2, 2009Inventors: Hiroto Kikuchi, Masanori Nakamura, Hironori Wakamatsu, Hideaki Morisaka, Hirofumi Yasuda, Katsuo Suga, Kazuyuki Shiratori, Kenji Uesugi, Toshiharu Miyamura
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Publication number: 20080317646Abstract: A catalytic converter includes: a three-dimensional structural support having a plurality of cells partitioned by porous cell walls, in which a pore diameter of the cell walls is 10 ?m to 50 ?m and porosity of the cell walls is 40 vol % or more; and a catalyst-coated layer containing a catalyst component. The catalyst-coated layer is coated on surfaces of the cell walls of the three-dimensional structural support. 50 mass % or more of a total supported amount of the catalyst component on the three-dimensional structural support is present in a region from the surfaces of the cell walls of the three-dimensional structural support to surfaces of the catalyst-coated layer.Type: ApplicationFiled: January 29, 2008Publication date: December 25, 2008Inventors: Hideaki MORISAKA, Masahiro Takaya, Toshiharu Miyamura, Takeshi Yamauchi, Yasunari Hanaki
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Publication number: 20080318771Abstract: A particulate matter oxidizing catalyst includes: at least one metal selected from the group consisting of: gallium, manganese, iron, cobalt, nickel, copper, yttrium, zirconium, niobium, molybdenum, silver, lanthanum, praseodymium, neodymium and gold; and cerium, wherein a first oxide includes: the cerium, and a first metal which is at least one element selected from the group consisting of: gallium, manganese, iron, cobalt and nickel, wherein a second oxide includes: the cerium, and a second metal which is at least one element selected from the group consisting of: praseodymium, zirconium and aluminum, and wherein the second oxide and the first oxide have a content ratio of second oxide/(first oxide+second oxide)=0.1 by mass to 0.8 by mass.Type: ApplicationFiled: November 7, 2007Publication date: December 25, 2008Inventors: Maki Shimada, Junji Ito, Toshiharu Miyamura, Yasunari Hanaki, Shigeru Chida, Shinichi Akaishi
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Publication number: 20080254978Abstract: Disclosed is an exhaust gas purifying catalyst exhibiting excellent purification performance for a long period of time by suppressing coagulation of a noble metal. A catalyst powder comprises a noble metal and first and second compounds. In the catalyst powder, the first compound carries the noble metal and is separated from another first compound carrying a noble metal by the second compound. At least one catalyst layer comprising the catalyst powder is formed on an inner surface of a substrate. The catalyst layer has fine pores. A fine pore volume of fine pores having a fine pore diameter of greater than 0.1 ?m to less than or equal to 1 ?m is 10% to 60% of the fine pore volume of fine pores having a fine pore diameter of 0.1 ?m or less.Type: ApplicationFiled: April 4, 2008Publication date: October 16, 2008Applicant: NISSAN MOTOR CO., LTD.Inventors: Hiroto Kikuchi, Katsuo Suga, Masanori Nakamura, Hironori Wakamatsu, Kazuyuki Shiratori, Toshiharu Miyamura, Jun Ikezawa
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Publication number: 20080187714Abstract: An exhaust gas purifying catalyst is composed of: noble metal particles; first compounds which support the noble metal particles and suppress movement of the noble metal particles; and second compounds which encapsulate the noble metal particles and the first compounds, suppress the movement of the noble metal particles, and suppress the coagulation of the first compounds following mutual contact of the first compounds. The first compounds are a composite containing a rare earth element.Type: ApplicationFiled: January 25, 2008Publication date: August 7, 2008Inventors: Hironori Wakamatsu, Maki Shimada, Masanori Nakamura, Katsuo Suga, Hiroto Kikuchi, Tetsuro Naito, Toshiharu Miyamura, Jun Ikezawa
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Publication number: 20080146439Abstract: An exhaust gas purging catalyst, includes: an integrated carrier; and a catalyst coat layer formed on the integrated carrier. The catalyst coat layer includes a catalyst component and meets the following expression (A): P?0.17W?0.04 - - - (A). P denotes a summation (ml) of a capacity of a void per mass (g) of the catalyst coat layer. The void has a pore diameter of 0.1 ?m to 1 ?m. W denotes a volume (ml) of the catalyst coat layer per the mass (g) of the catalyst coat layer.Type: ApplicationFiled: December 14, 2007Publication date: June 19, 2008Inventors: Yasunari Hanaki, Toshiharu Miyamura, Haruhiko Shibayama
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Publication number: 20080132409Abstract: Herein is provided a fibrous catalyst having a catalytic layer containing particles comprising ceria CeO2, with an average particle size of 1 nm to 1 ?m. The layer is coated on the surface of a ceramic fiber. Accordingly, flexibility of the surface of the catalytic layer is improved due to the decreased interaction between the particles due to their minute size. Because flexibility is improved, vibration and deformation does not deteriorate the layer, and as such, the peeling-resistance property is improved.Type: ApplicationFiled: October 31, 2007Publication date: June 5, 2008Applicant: NISSAN MOTOR CO., LTD.Inventors: Junji Ito, Masahiro Takaya, Toshiharu Miyamura, Takeshi Yamauchi