Patents by Inventor Satoshi Matsueda
Satoshi Matsueda 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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Publication number: 20100298132Abstract: An exhaust gas-purifying catalyst (1) contains a rare-earth element, an alkaline-earth element, zirconium and a precious metal, an atomic ratio of the alkaline-earth element with respect to the sum of the rare-earth element and the zirconium is equal to 0.1 atomic % or higher and lower than 10 atomic %, a part of the rare-earth element, a part of the zirconium and at least a part of the alkaline-earth element forming a composite oxide, and the composite oxide and a part of precious metal forming a solid solution.Type: ApplicationFiled: August 2, 2010Publication date: November 25, 2010Inventors: Satoshi Matsueda, Mareo Kimura, Akiya Chiba, Hiroki Nagashima, Naoto Miyoshi, Kazunobu Ishibashi, Takaaki Kanazawa
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Patent number: 7795170Abstract: Provided is a catalyst with a noble metal efficiently supported on the surfacemost thereof. A composite oxide-containing layer is formed on a catalyst carrier so as to contain a perovskite-type composite oxide represented by the following general formula (1) and an other composite oxide, and a noble metal layer is further formed on the catalyst carrier so as to be supported on the surfacemost of the catalyst carrier by immersing the catalyst carrier formed with the composite oxide-containing layer in an aqueous noble metal salt solution to impregnate the catalyst carrier with the aqueous noble metal salt solution: AxByO3±???(1) (wherein A represents at least one element selected from rare earth elements and alkaline earth metals; B represents at least one element selected from transition elements (excluding rare earth elements); x represents an atomic ratio of less than 1; y represents an atomic ratio of 1.0; and ? represents an oxygen excess or an oxygen deficiency.Type: GrantFiled: April 23, 2007Date of Patent: September 14, 2010Assignees: Daihatsu Motor Co., Cataler CorporationInventors: Hirohisa Tanaka, Isao Tan, Mari Uenishi, Masashi Taniguchi, Mareo Kimura, Satoshi Matsueda, Akimasa Hirai, Keiichi Narita
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Publication number: 20100227759Abstract: Provided is a catalyst composition capable of preventing decrease in catalytic activity due to grain growth of noble metal under high temperature or under change in oxidation reduction or further for long term use, and of achieving excellent catalytic activity over a long time. The catalyst composition containing a composite oxide represented by the following general formula (1): AO.x(B2-yCyO3-?)??(1) (wherein A represents an element selected from monovalent elements, divalent elements and lanthanides; B represents a trivalent element; and C represents a noble metal; x represents an integer of 1 to 6; y represents an atomic ratio satisfying the following relation: 0<y<2; and ? represents a deficient atomic ratio of oxygen atoms) is prepared.Type: ApplicationFiled: March 8, 2007Publication date: September 9, 2010Applicants: DAIHATSU MOTOR CO., LTD., CATALER CORPORATIONInventors: Hirohisa Tanaka, Isao Tan, Mari Uenishi, Masashi Taniguchi, Mareo Kimura, Satoshi Matsueda
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Publication number: 20100204039Abstract: The exhaust gas-purifying catalyst includes at least one of a first composite oxide represented by a formula A(Al2-xBx)O4 and a second composite oxide represented by a formula (Al2-yCy)O3, wherein element A is a divalent transition metal other than platinum-group elements, each of elements B and C is a transition metal other than platinum-group elements, x satisfies 0<x<2, and y satisfies 0<y<2.Type: ApplicationFiled: April 22, 2010Publication date: August 12, 2010Applicants: CATALER CORPORATION, DIAHATSU MOTOR CO., LTD.Inventors: Satoshi MATSUEDA, Mareo Kimura, Hiroto Yoshida, Keiichi Narita, Hirohisa Tanaka, Mari Uenishi, Masashi Taniguchi
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Patent number: 7759278Abstract: An exhaust gas-purifying catalyst includes a rare-earth element, an alkaline-earth element, and a precious metal. A part of the rare-earth element and a part of the alkaline-earth element form a composite oxide. The composite oxide and a part of the precious metal form a solid solution.Type: GrantFiled: July 6, 2006Date of Patent: July 20, 2010Assignee: Cataler CorporationInventors: Satoshi Matsueda, Mareo Kimura, Yoshinori Ishii, Naoto Miyoshi
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Publication number: 20100093526Abstract: Disclosed is a catalyst composition containing a composite oxide. The composite oxide contains a transition element (excluding platinum group elements) which is transformed into a solid solution in the composite oxide under an oxidizing atmosphere and is precipitated from the composite oxide under a reducing atmosphere.Type: ApplicationFiled: January 15, 2008Publication date: April 15, 2010Applicants: DAIHATSU MOTOR CO., LTD., CATALER CORPORATIONInventors: Hirohisa Tanaka, Mari Uenishi, Masashi Taniguchi, Ryouhei Iwasaki, Mareo Kimura, Satoshi Matsueda
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Patent number: 7625836Abstract: To provide a heat-resistant oxide which is excellent in heat resistance and durability at high temperature and has high activity, a heat-resistant oxide which has an oxide crystal structure and in which a rate of a solid solution of a noble metal in the oxide crystal structure is 50% or more is obtained by heat-treating (secondarily baking) a precursor composition comprising zirconia, at least one coordinative element selected from the group consisting of rare earth elements, alkaline earth elements, aluminum and silicon, and at least one noble metal selected from the group consisting of platinum, rhodium and palladium at 650° C. or higher.Type: GrantFiled: December 13, 2005Date of Patent: December 1, 2009Assignees: Cataler Corporation, Daihatsu Motor Co., Ltd.Inventors: Satoshi Matsueda, Mareo Kimura, Naoto Miyoshi, Yoshinori Ishii, Hirohisa Tanaka, Isao Tan, Mari Uenishi, Masashi Taniguchi
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Publication number: 20090253574Abstract: Provided is a catalyst with a noble metal efficiently supported on the surfacemost thereof. A composite oxide-containing layer is formed on a catalyst carrier so as to contain a perovskite-type composite oxide represented by the following general formula (1) and an other composite oxide, and a noble metal layer is further formed on the catalyst carrier so as to be supported on the surfacemost of the catalyst carrier by immersing the catalyst carrier formed with the composite oxide-containing layer in an aqueous noble metal salt solution to impregnate the catalyst carrier with the aqueous noble metal salt solution: AxByO3±???(1) (wherein A represents at least one element selected from rare earth elements and alkaline earth metals; B represents at least one element selected from transition elements (excluding rare earth elements); x represents an atomic ratio of less than 1; y represents an atomic ratio of 1.0; and ? represents an oxygen excess or an oxygen deficiency.Type: ApplicationFiled: April 23, 2007Publication date: October 8, 2009Applicants: DAIHATSU MOTOR CO., LTD., CATALER CORPORATIONInventors: Hirohisa Tanaka, Isao Tan, Mari Uenishi, Masashi Taniguchi, Mareo Kimura, Satoshi Matsueda, Akimasa Hirai, Keiichi Narita
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Publication number: 20090131252Abstract: To provide a catalyst composition containing a novel perovskite-type composite oxide which permits reversible entrance and exit of noble metals, a catalyst composition is prepared so as to contain a perovskite-type composite oxide represented by the general formula (1): AxA?wByB?(1-y-z)NzO3±???(1) (wherein A represents at least one element selected from alkaline earth metals; A? represents at least one element selected from rare earth elements; B represents a tetravalent rare earth element; B? represents at least one element selected from transition elements (excluding tetravalent rare earth elements, Rh, Pd and Pt); N represents at least one element selected from Rh, Pd and Pt; x and w represent an atomic ratio satisfying the following relations: 0.8?x+w?1.3 (0.8?x?1.3, 0?w?0.4); y represents an atomic ratio satisfying the following relation: 0<y<1.0; z represents an atomic ratio satisfying the following relation: 0<z?0.5; and ? represents an oxygen excess or deficiency amount).Type: ApplicationFiled: June 2, 2006Publication date: May 21, 2009Inventors: Hirohisa Tanaka, Isao Tan, Mari Uenishi, Masashi Taniguchi, Kazuya Naito, Mareo Kimura, Keiichi Narita, Hiromasa Suzuki, Satoshi Matsueda, Yoshinori Ishii
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Publication number: 20090131251Abstract: An exhaust gas-purifying catalyst is less prone to cause a decrease in its activity even when used in a high temperature atmosphere containing oxygen at a high concentration. The exhaust gas-purifying catalyst includes a composite oxide and Pd or a second solid solution of a composite and Rh and/or Pt. The first and second solid solutions have perovskite structure and are represented by ABO3 and CDO3, respectively. The composite oxide catalyst is supported by a composite oxide support including a composite oxide of spinel structure represented by EF2O4 or a composite oxide represented by GAl12O19. A and B represent a rare-earth element and a transition element, respectively. C and G represent an alkaline-earth element. D represents one or more of Ti, Zr, Hf and Ce. E represents an alkaline-earth element and/or a transition element. F represents one or more of Al, Mg and transition elements.Type: ApplicationFiled: December 23, 2008Publication date: May 21, 2009Applicants: CATALER CORPORATION, DAIHATSU MOTOR CO., LTD.Inventors: Satoshi Matsueda, Mareo Kimura, Akimasa Hirai, Keiichi Narita, Hirohisa Tanaka, Isao Tan, Mari Uenishi, Masashi Taniguchi
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Publication number: 20090099010Abstract: An exhaust gas-purifying catalyst whose activity is less prone to be decreased even in the case where used in a high-temperature atmosphere containing oxygen at a high concentration can be realized. The catalytic layer of the catalyst includes an oxide particle, a simple oxide of alkaline-earth element or rare-earth element, and alumina and/or aluminum hydroxide. The oxide particle contains an oxide of rare-earth element and/or zirconium, a composite oxide and a precious metal. The composite oxide contains an alkaline-earth element and at least one of the rare-earth element and zirconium. The composite oxide and a part of the precious metal form a solid solution.Type: ApplicationFiled: May 31, 2007Publication date: April 16, 2009Inventors: Hiroki Nagashima, Akiya Chiba, Satoshi Matsueda
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Patent number: 7498288Abstract: An exhaust gas-purifying catalyst includes a support and a catalyst active component including at least one noble metal supported by at least a portion of the support. The support includes a stabilized zirconia containing at least one stabilizing element selected from rare earth elements and alkaline earth elements. 20 to 80% by weight of a total amount of the active component is supported in the support in a form of solid solution with the stabilized zirconia, and 80 to 20% by weight of a total amount of the active component is supported on a surface of at least a portion of the support.Type: GrantFiled: February 14, 2005Date of Patent: March 3, 2009Assignee: Cataler CorporationInventors: Satoshi Matsueda, Mareo Kimura, Naoto Miyoshi
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Publication number: 20090036300Abstract: An exhaust gas-purifying catalyst (1) contains a rare-earth element, an alkaline-earth element, zirconium and a precious metal, wherein an atomic ratio of the alkaline-earth element with respect to a sum of the rare-earth element and the zirconium is 10 atomic % or more, a part of the rare-earth element and a part of zirconium form a composite oxide with at least a part of the alkaline-earth element, and the composite oxide and a part of the precious metal form a solid solution.Type: ApplicationFiled: June 2, 2006Publication date: February 5, 2009Applicants: CATALER CORPORATION, DAIHATSU MOTOR CO., LTD.Inventors: Satoshi Matsueda, Mareo Kimura, Akimasa Hirai, Keiichi Narita, Hirohisa Tanaka, Mari Uenishi, Isao Tan, Masashi Taniguchi
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Publication number: 20090023580Abstract: An object of the present invention is to provide a catalyst composition containing a perovskite-type composite oxide which exhibits a satisfactory catalytic performance over a long time even in a high temperature atmosphere and has a stable quality in which Rh and/or Pt dissolves to form a solid solution at a high rate. To achieve the object described above, in the present invention the catalyst composition is prepared to comprise an Rh-containing perovskite-type composite oxide represented by the following general formula (I) and/or a Pt-containing perovskite-type composite oxide represented by the following general formula (II) and a thermostable oxide optionally containing a noble metal.Type: ApplicationFiled: February 17, 2006Publication date: January 22, 2009Applicants: DAIHATSU MOTOR CO., LTD., CATALER CORPORATIONInventors: Hirohisa Tanaka, Kiyotomi Mitsumori, Isao Tan, Ichiro Takahashi, Mari Uenishi, Nobuhiko Kajita, Masashi Taniguchi, Kazuya Naito, Mareo Kimura, Keiichi Narita, Akimasa Hirai, Hiromasa Suzuki, Satoshi Matsueda, Hiroki Nagashima, Yoshinori Ishii, Norihiko Aono
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Publication number: 20090011932Abstract: An object of the present invention is to provide an exhaust gas-purifying catalyst that is less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere whose oxygen concentration is high. An exhaust gas-purifying catalyst of the present invention includes a composite oxide of alkaline-earth metal and aluminum, and platinum, wherein at least a part of the composite oxide and at least a part of the platinum forms a solid solution.Type: ApplicationFiled: September 4, 2008Publication date: January 8, 2009Applicants: CATALER CORPORATION, DAIHATSU MOTOR CO., LTD.Inventors: Satoshi MATSUEDA, Mareo Kimura, Hirohisa Tanaka, Mari Uenishi
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Publication number: 20080318770Abstract: An exhaust gas-purifying catalyst (1) contains a rare-earth element, an alkaline-earth element, zirconium and a precious metal, an atomic ratio of the alkaline-earth element with respect to the sum of the rare-earth element and the zirconium is equal to 0.1 atomic % or higher and lower than 10 atomic %, a part of the rare-earth element, a part of the zirconium and at least a part of the alkaline-earth element forming a composite oxide, and the composite oxide and a part of precious metal forming a solid solution.Type: ApplicationFiled: June 14, 2006Publication date: December 25, 2008Applicants: Cataler Corporation, Toyota Jidasha Kabushiki KaishaInventors: Satoshi Matsueda, Mareo Kimura, Akiya Chiba, Hiroki Nagashima, Naoto Miyoshi, Kazunobu Ishibashi, Takaaki Kanazawa
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Publication number: 20080182746Abstract: An object of the present invention is to provide an exhaust gas-purifying catalyst containing a composite oxide catalyst and a refractory support and being less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere with high oxygen concentration. An exhaust gas-purifying catalyst includes a composite oxide catalyst containing rare-earth element, alkaline-earth element and precious metal, a part of the rare-earth element and a part of the alkaline-earth element forming composite oxide, and the composite oxide and a part of the precious metal forming solid solution, and a refractory support supporting the composite oxide catalyst and including at least one of a first composite oxide represented by a general formula AB2O4, a second composite oxide having perovskite structure represented by a general formula LMO3, and a third composite oxide having pyrochlore structure represented by a general formula X2Y2O7.Type: ApplicationFiled: March 28, 2008Publication date: July 31, 2008Applicant: CATALER CORPORATIONInventors: Satoshi Matsueda, Mareo Kimura, Keiichi Marita
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Publication number: 20070297971Abstract: To provide a heat-resistant oxide which is excellent in heat resistance and durability at high temperature and has high activity, a heat-resistant oxide which has an oxide crystal structure and in which a rate of a solid solution of a noble metal in the oxide crystal structure is 50% or more is obtained by heat-treating (secondarily baking) a precursor composition comprising zirconia, at least one coordinative element selected from the group consisting of rare earth elements, alkaline earth elements, aluminum and silicon, and at least one noble metal selected from the group consisting of platinum, rhodium and palladium at 650° C. or higher.Type: ApplicationFiled: December 13, 2005Publication date: December 27, 2007Applicants: CATALER CORPORATIO, DAIHATSU MOTOR CO., LTD.Inventors: Satoshi Matsueda, Mareo Kimura, Naoto Miyoshi, Yoshinori Ishii, Hirohisa Tanaka, Isao Tan, Mari Uenishi, Masashi Taniguchi
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Publication number: 20060252638Abstract: An exhaust gas-purifying catalyst includes a rare-earth element, an alkaline-earth element, and a precious metal. A part of the rare-earth element and a part of the alkaline-earth element form a composite oxide. The composite oxide and a part of the precious metal form a solid solution.Type: ApplicationFiled: July 6, 2006Publication date: November 9, 2006Applicant: CATALER CORPORATIONInventors: Satoshi Matsueda, Mareo Kimura, Yoshinori Ishii, Naoto Miyoshi
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Publication number: 20050215428Abstract: An exhaust gas-purifying catalyst includes a support and a catalyst active component including at least one noble metal supported by at least a portion of the support. The support includes a stabilized zirconia containing at least one stabilizing element selected from rare earth elements and alkaline earth elements. 20 to 80% by weight of a total amount of the active component is supported in the support in a form of solid solution with the stabilized zirconia, and 80 to 20% by weight of a total amount of the active component is supported on a surface of at least a portion of the support.Type: ApplicationFiled: February 14, 2005Publication date: September 29, 2005Applicant: CATALER CORPORATIONInventors: Satoshi Matsueda, Mareo Kimura, Naoto Miyoshi