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).

  • Patent number: 9120959
    Abstract: 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: Grant
    Filed: March 24, 2011
    Date of Patent: September 1, 2015
    Assignees: 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
  • Patent number: 9074827
    Abstract: 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: Grant
    Filed: November 27, 2008
    Date of Patent: July 7, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takashi Shimazu, Hiroyuki Mitsui, Hideo Sobukawa, Yasuo Takada, Yoshiaki Fukushima
  • Patent number: 8951475
    Abstract: 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: Grant
    Filed: March 29, 2012
    Date of Patent: February 10, 2015
    Assignee: Denso Corporation
    Inventors: Katsuya Komaki, Hiroshi Mieda, Tadahiro Nakagawa, Takashi Shimazu, Tomohisa Wakasugi, Hiroyuki Mitsui, Hideo Sobukawa
  • Publication number: 20130075052
    Abstract: 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: Application
    Filed: March 24, 2011
    Publication date: March 28, 2013
    Applicants: OMI MINING CO., LTD., KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masashi Hara, Miyo Mochizuki, Takashi Shimazu, Hideo Sobukawa, Yoshiaki Fukushima, Tomohisa Wakasugi, Kazuhisa Yano, Hiroyuki Itahara, Tsutomu Sawada, Takatsune Fujimura
  • Publication number: 20120251394
    Abstract: 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: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Applicant: DENSO CORPORATION
    Inventors: Katsuya Komaki, Hiroshi Mieda, Tadahiro Nakagawa, Takashi Shimazu, Tomohisa Wakasugi, Hiroyuki Mitsui, Hideo Sobukawa
  • Patent number: 7935653
    Abstract: 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: Grant
    Filed: June 9, 2005
    Date of Patent: May 3, 2011
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno, Yoriko Hasegawa
  • Patent number: 7838460
    Abstract: 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: Grant
    Filed: January 30, 2006
    Date of Patent: November 23, 2010
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno
  • Publication number: 20100252248
    Abstract: 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: Application
    Filed: November 27, 2008
    Publication date: October 7, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takashi Shimazu, Hiroyuki Mitsui, Hideo Sobukawa, Yasuo Takada, Yoshiaki Fukushima
  • Patent number: 7618919
    Abstract: 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: Grant
    Filed: January 30, 2006
    Date of Patent: November 17, 2009
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa
  • Publication number: 20070215009
    Abstract: 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: Application
    Filed: June 9, 2005
    Publication date: September 20, 2007
    Applicant: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno, Yoriko Hasegawa
  • Patent number: 7247597
    Abstract: 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: Grant
    Filed: August 22, 2002
    Date of Patent: July 24, 2007
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Akira Morikawa, Yasutaka Nagai, Toshitaka Tanabe, Tadashi Suzuki, Akihiko Suda, Hideo Sobukawa
  • Patent number: 7214643
    Abstract: 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: Grant
    Filed: March 21, 2003
    Date of Patent: May 8, 2007
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Toshio Yamamoto, Akihiko Suda, Kae Yamamura, Hideo Sobukawa
  • Publication number: 20060172886
    Abstract: 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: Application
    Filed: January 30, 2006
    Publication date: August 3, 2006
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa
  • Publication number: 20060172885
    Abstract: 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: Application
    Filed: January 30, 2006
    Publication date: August 3, 2006
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takashi Shimazu, Ryusuke Tsuji, Hideo Sobukawa, Yoshiki Seno
  • Patent number: 6933259
    Abstract: 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: Grant
    Filed: November 14, 2001
    Date of Patent: August 23, 2005
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Miho Hatanaka, Akira Morikawa, Akihiko Suda, Hideo Sobukawa, Kiyoshi Yamazaki
  • Publication number: 20030224931
    Abstract: 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: Application
    Filed: March 21, 2003
    Publication date: December 4, 2003
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Toshio Yamamoto, Akihiko Suda, Kae Yamamura, Hideo Sobukawa
  • Publication number: 20030050189
    Abstract: 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: Application
    Filed: August 22, 2002
    Publication date: March 13, 2003
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Akira Morikawa, Yasutaka Nagai, Toshitaka Tanabe, Tadashi Suzuki, Akihiko Suda, Hideo Sobukawa
  • Patent number: 6492298
    Abstract: 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: Grant
    Filed: March 29, 2000
    Date of Patent: December 10, 2002
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Hideo Sobukawa, Toshitaka Tanabe, Kenichirou Suzuki, Megumi Sasaki, Hiroaki Hayashi, Akira Morikawa, Masahiro Sugiura
  • Publication number: 20020090512
    Abstract: 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: Application
    Filed: November 14, 2001
    Publication date: July 11, 2002
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Miho Hatanaka, Akira Morikawa, Akihiko Suda, Hideo Sobukawa, Kiyoshi Yamazaki
  • Patent number: 6335305
    Abstract: 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: Grant
    Filed: April 11, 2000
    Date of Patent: January 1, 2002
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Tadashi Suzuki, Akira Morikawa, Hideo Sobukawa