Patents by Inventor Hideo Sobukawa
Hideo Sobukawa 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: 9120959Abstract: Disclosed is a chemical thermal energy storage material structure, including a granular chemical thermal energy storage material, a clay mineral having a layered ribbon structure, and a complex metal silicate that is generated by a reaction between the above-mentioned chemical thermal energy storage material and the above-mentioned clay mineral and that includes at least one type of alkaline earth metal.Type: GrantFiled: March 24, 2011Date of Patent: September 1, 2015Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, OMI MINING CO., LTD.Inventors: Masashi Hara, Miyo Mochizuki, Takashi Shimazu, Hideo Sobukawa, Yoshiaki Fukushima, Tomohisa Wakasugi, Kazuhisa Yano, Hiroyuki Itahara, Tsutomu Sawada, Takatsune Fujimura
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Patent number: 9074827Abstract: A heat exchanger heat-utilization device is obtained that can efficiently store heat and dissipate heat in or from a chemical thermal storage medium, and a manufacturing method of the heat exchanger heat-utilization device. A heat exchanger heat-utilization device includes: chemical thermal storage medium composite molded formed by organizing chemical thermal storage medium particles into a porous structural body having flow channels; and a heat exchanger body. The heat exchanger body has thermal storage medium containing portions in which the chemical thermal storage medium composite molded bodies are accommodated, and fluid flow channels that are partitioned from the thermal storage medium containing portions by partition walls and through which a heat exchange medium flows for heat exchange with the chemical thermal storage medium composite molded bodies.Type: GrantFiled: November 27, 2008Date of Patent: July 7, 2015Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Takashi Shimazu, Hiroyuki Mitsui, Hideo Sobukawa, Yasuo Takada, Yoshiaki Fukushima
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Patent number: 8951475Abstract: A chemical heat accumulator includes a receptacle, a first reaction vessel, and a second reaction vessel. The first reaction vessel is hermetically connected to the receptacle and supplied with water from the receptacle. The first reaction vessel contains a chemical compound that causes a hydration reaction with the water from the receptacle to generate water vapor by a heat of reaction, and causes a dehydration reaction by receiving heat. The second reaction vessel is hermetically connected to the first reaction vessel and supplied with the water vapor from the first reaction vessel. The second reaction vessel contains a chemical heat storage material that generates heat by causing a hydration reaction with the water vapor from the first reaction vessel and stores heat through a dehydration reaction caused by receiving heat. The chemical heat storage material is thermally in contact with an object to be heated.Type: GrantFiled: March 29, 2012Date of Patent: February 10, 2015Assignee: Denso CorporationInventors: Katsuya Komaki, Hiroshi Mieda, Tadahiro Nakagawa, Takashi Shimazu, Tomohisa Wakasugi, Hiroyuki Mitsui, Hideo Sobukawa
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Publication number: 20130075052Abstract: Disclosed is a chemical thermal energy storage material structure, including a granular chemical thermal energy storage material, a clay mineral having a layered ribbon structure, and a complex metal silicate that is generated by a reaction between the above-mentioned chemical thermal energy storage material and the above-mentioned clay mineral and that includes at least one type of alkaline earth metal.Type: ApplicationFiled: March 24, 2011Publication date: March 28, 2013Applicants: OMI MINING CO., LTD., KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Masashi Hara, Miyo Mochizuki, Takashi Shimazu, Hideo Sobukawa, Yoshiaki Fukushima, Tomohisa Wakasugi, Kazuhisa Yano, Hiroyuki Itahara, Tsutomu Sawada, Takatsune Fujimura
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Publication number: 20120251394Abstract: A chemical heat accumulator includes a receptacle, a first reaction vessel, and a second reaction vessel. The first reaction vessel is hermetically connected to the receptacle and supplied with water from the receptacle. The first reaction vessel contains a chemical compound that causes a hydration reaction with the water from the receptacle to generate water vapor by a heat of reaction, and causes a dehydration reaction by receiving heat. The second reaction vessel is hermetically connected to the first reaction vessel and supplied with the water vapor from the first reaction vessel. The second reaction vessel contains a chemical heat storage material that generates heat by causing a hydration reaction with the water vapor from the first reaction vessel and stores heat through a dehydration reaction caused by receiving heat. The chemical heat storage material is thermally in contact with an object to be heated.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: DENSO CORPORATIONInventors: Katsuya Komaki, Hiroshi Mieda, Tadahiro Nakagawa, Takashi Shimazu, Tomohisa Wakasugi, Hiroyuki Mitsui, Hideo Sobukawa
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Patent number: 7935653Abstract: A metal oxide nanoporous material comprises two or more kinds of first metal oxides selected from the group consisting of alumina, zirconia, titania, iron oxide, rare-earth oxides, alkali metal oxides and alkaline-earth metal oxides. The metal oxide nanoporous material has nanopores, each with a diameter of 10 nm or smaller, in which the metal oxides are dispersed homogeneously in the wall forming the nanopores.Type: GrantFiled: June 9, 2005Date of Patent: May 3, 2011Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno, Yoriko Hasegawa
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Patent number: 7838460Abstract: A nanoporous metal oxide material comprising two or more metal oxides, wherein the nanoporous metal oxide material has ceria content of 10 to 60 weight %, zirconia content of 20 to 90 weight %, and alumina content of 70 weight % or less, and has nanopores whose diameters are 10 nm or less, and the metal oxides are homogeneously dispersed in a wall constituting the nanopores.Type: GrantFiled: January 30, 2006Date of Patent: November 23, 2010Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno
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Publication number: 20100252248Abstract: A heat exchanger heat-utilization device is obtained that can efficiently store heat and dissipate heat in or from a chemical thermal storage medium, and a manufacturing method of the heat exchanger heat-utilization device. A heat exchanger heat-utilization device includes: chemical thermal storage medium composite molded formed by organizing chemical thermal storage medium particles into a porous structural body having flow channels; and a heat exchanger body. The heat exchanger body has thermal storage medium containing portions in which the chemical thermal storage medium composite molded bodies are accommodated, and fluid flow channels that are partitioned from the thermal storage medium containing portions by partition walls and through which a heat exchange medium flows for heat exchange with the chemical thermal storage medium composite molded bodies.Type: ApplicationFiled: November 27, 2008Publication date: October 7, 2010Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Takashi Shimazu, Hiroyuki Mitsui, Hideo Sobukawa, Yasuo Takada, Yoshiaki Fukushima
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Patent number: 7618919Abstract: A method of producing a catalyst support comprising a substrate, and coating formed on the surface of the substrate and including powder of a first metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, wherein the coating is obtained by heat treating the substrate after applied with a coating composition obtained by mixing the first metal oxide powder together with a fluid raw material composition containing raw material of a second metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, at a shear rate of 1000 sec?1 or higher.Type: GrantFiled: January 30, 2006Date of Patent: November 17, 2009Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa
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Publication number: 20070215009Abstract: A metal oxide nanoporous material comprises two or more kinds of first metal oxides selected from the group consisting of alumina, zirconia, titania, iron oxide, rare-earth oxides, alkali metal oxides and alkaline-earth metal oxides. The metal oxide nanoporous material has nanopores, each with a diameter of 10 nm or smaller, in which the metal oxides are dispersed homogeneously in the wall forming the nanopores.Type: ApplicationFiled: June 9, 2005Publication date: September 20, 2007Applicant: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno, Yoriko Hasegawa
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Patent number: 7247597Abstract: A composite oxide includes CeO2, ZrO2 and a metallic oxide being free from reacting with CeO2 and ZrO2 at 700° C. or more, preferably at 900° C. or more and further preferably at 1,000° C. or more. The composite oxide has a regulatory oriented phase, such as a pyrochlore phase, etc., in which at least a part of Ce cations and Zr cations are oriented regularly. The composite oxide makes a catalytic support. The CeO2—ZrO2 composite oxide and the reaction-free metallic oxide make barriers each other which suppress the granular growth when the composite oxide is subjected to high-temperature heat in a reducing heat treatment to form the regulatory oriented phase. The regulatory oriented phase improves the oxygen storage-and-release capability of the catalytic support. Thus, it is possible to simultaneously attain a large a specific surface area and a high oxygen storage-and-release capability.Type: GrantFiled: August 22, 2002Date of Patent: July 24, 2007Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Akira Morikawa, Yasutaka Nagai, Toshitaka Tanabe, Tadashi Suzuki, Akihiko Suda, Hideo Sobukawa
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Patent number: 7214643Abstract: A metal oxide which has a large pore volume, and is very useful as a catalyst support. An alkaline material is added to an aqueous solution in which a compound of a metal element for composing an oxide is dissolved, a resultant mixture is co-precipitated, an obtained precipitate is washed, a washed precipitate is stirred in water along with a surfactant, and is calcined. By adding the surfactant after washing, the pH is not changed so that the adding effect of the surfactant is achieved to its upper most limit, thereby obtaining a metal oxide which has a large pore volume and a large mean diameter of secondary particles, and exhibits excellent gas diffusion properties.Type: GrantFiled: March 21, 2003Date of Patent: May 8, 2007Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Toshio Yamamoto, Akihiko Suda, Kae Yamamura, Hideo Sobukawa
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Publication number: 20060172885Abstract: A nanoporous metal oxide material comprising two or more metal oxides, wherein the nanoporous metal oxide material has ceria content of 10 to 60 weight %, zirconia content of 20 to 90 weight %, and alumina content of 70 weight % or less, and has nanopores whose diameters are 10 nm or less, and the metal oxides are homogeneously dispersed in a wall constituting the nanopores.Type: ApplicationFiled: January 30, 2006Publication date: August 3, 2006Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno
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Publication number: 20060172886Abstract: A method of producing a catalyst support comprising a substrate, and coating formed on the surface of the substrate and including powder of a first metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, wherein the coating is obtained by heat treating the substrate after applied with a coating composition obtained by mixing the first metal oxide powder together with a fluid raw material composition containing raw material of a second metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, at a shear rate of 1000 sec?1 or higher.Type: ApplicationFiled: January 30, 2006Publication date: August 3, 2006Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa
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Patent number: 6933259Abstract: This composite oxide powder can secure a large pore volume even after calcination at high temperature and, when a catalyst is formed by loading a noble metal on this composite oxide powder, noble metal grain growth can be suppressed. The composite oxide powder comprises particles of an oxide of a metal M1 and an oxide of a metal M2 which does not dissolve in the oxide of the metal M1, the oxide of the metal M1 and the oxide of the metal M2 being dispersed at the nanometer level. Since different oxides serve as a barrier to each other, sintering is suppressed. Therefore, in the case of composite oxide powder comprising Ce as a metal M1 and Al as a metal M2, grain growth is small even after exposed to high temperature and pores of 3.5-100 nm secure a volume of 0.07 cc/g or more after calcination at 600° C. for 5 hours and a volume of 0.04 cc/g or more after calcination at 800° C. for 5 hours.Type: GrantFiled: November 14, 2001Date of Patent: August 23, 2005Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Miho Hatanaka, Akira Morikawa, Akihiko Suda, Hideo Sobukawa, Kiyoshi Yamazaki
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Publication number: 20030224931Abstract: A metal oxide which has a large pore volume, and is very useful as a catalyst support. An alkaline material is added to an aqueous solution in which a compound of a metal element for composing an oxide is dissolved, a resultant mixture is co-precipitated, an obtained precipitate is washed, a washed precipitate is stirred in water along with a surfactant, and is calcined. By adding the surfactant after washing, the pH is not changed so that the adding effect of the surfactant is achieved to its upper most limit, thereby obtaining a metal oxide which has a large pore volume and a large mean diameter of secondary particles, and exhibits excellent gas diffusion properties.Type: ApplicationFiled: March 21, 2003Publication date: December 4, 2003Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Toshio Yamamoto, Akihiko Suda, Kae Yamamura, Hideo Sobukawa
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Publication number: 20030050189Abstract: A composite oxide includes CeO2, ZrO2 and a metallic oxide being free from reacting with CeO2 and ZrO2 at 700° C. or more, preferably at 900° C. or more and further preferably at 1,000° C. or more. The composite oxide has a regulatory oriented phase, such as a pyrochlore phase, etc., in which at least a part of Ce cations and Zr cations are oriented regularly. The composite oxide makes a catalytic support. The CeO2—ZrO2 composite oxide and the reaction-free metallic oxide make barriers each other which suppress the granular growth when the composite oxide is subjected to high-temperature heat in a reducing heat treatment to form the regulatory oriented phase. The regulatory oriented phase improves the oxygen storage-and-release capability of the catalytic support. Thus, it is possible to simultaneously attain a large a specific surface area and a high oxygen storage-and-release capability.Type: ApplicationFiled: August 22, 2002Publication date: March 13, 2003Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Akira Morikawa, Yasutaka Nagai, Toshitaka Tanabe, Tadashi Suzuki, Akihiko Suda, Hideo Sobukawa
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Patent number: 6492298Abstract: An ordinary-temperature purifying catalyst includes an oxide having an oxygen defect introduced by a reduction treatment, and a noble metal loaded on the oxide. For example, the oxide can be at least one oxide selected from the group consisting of cerium oxides and zirconium oxides, at least a part of which has an oxygen defect. The catalyst can purify an environmental loading material, such as carbon monoxide, a nitrogen oxide, ethylene, formaldehyde, trimethylamine, methyl mercaptan and acetaldehyde, in air at an ordinary temperature. A method for how to use the catalyst is also disclosed.Type: GrantFiled: March 29, 2000Date of Patent: December 10, 2002Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Hideo Sobukawa, Toshitaka Tanabe, Kenichirou Suzuki, Megumi Sasaki, Hiroaki Hayashi, Akira Morikawa, Masahiro Sugiura
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Publication number: 20020090512Abstract: This composite oxide powder can secure a large pore volume even after calcination at high temperature and, when a catalyst is formed by loading a noble metal on this composite oxide powder, noble metal grain growth can be suppressed. The composite oxide powder comprises particles of an oxide of a metal M1 and an oxide of a metal M2 which does not dissolve in the oxide of the metal M1, the oxide of the metal M1 and the oxide of the metal M2 being dispersed at the nanometer level. Since different oxides serve as a barrier to each other, sintering is suppressed. Therefore, in the case of composite oxide powder comprising Ce as a metal M1 and Al as a metal M2, grain growth is small even after exposed to high temperature and pores of 3.5-100 nm secure a volume of 0.07 cc/g or more after calcination at 600° C. for 5 hours and a volume of 0.04 cc/g or more after calcination at 800° C. for 5 hours.Type: ApplicationFiled: November 14, 2001Publication date: July 11, 2002Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Miho Hatanaka, Akira Morikawa, Akihiko Suda, Hideo Sobukawa, Kiyoshi Yamazaki
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Patent number: 6335305Abstract: A catalyst for purifying an exhaust gas includes a support and a noble metal loaded on the support. The support includes a mixture containing a porous oxide and a composite oxide. The composite oxide is expressed by the following formula: (Al2O3)a(CeO2)b(ZrO2)1−b in which the values “a” and “b” are molar ratios and the value “a” falls in a range of from 0.4 to 2.5 and the value “b” falls in a range of from 0.2 to 0.7. The support includes a particle having a particle diameter of 5 &mgr;m or more in an amount of 30% by volume or more. With the thus arranged support, even when the catalyst is subjected to such a severe durability test that it is heated at 1,000° C. for 10 to 20 hours, it exhibits a high purifying activity, and its coating layer is inhibited from cracking or coming off.Type: GrantFiled: April 11, 2000Date of Patent: January 1, 2002Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Tadashi Suzuki, Akira Morikawa, Hideo Sobukawa