Patents by Inventor Hiroko Kimura
Hiroko Kimura 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: 11239474Abstract: The present invention is to provide a method for producing a catalyst for fuel cells with excellent durability, and a fuel cell comprising a catalyst for fuel cells produced by the production method. Disclosed is a method for producing a catalyst for fuel cells, the catalyst comprising fine catalyst particles, each of which comprises a palladium-containing core particle and a platinum-containing outermost layer covering the core particle, and carbon supports on which the fine catalyst particles are supported, wherein the method comprises the steps of: preparing carbon supports on which palladium-containing particles are supported; fining the carbon supports; and covering the palladium-containing particles with a platinum-containing outermost layer after the fining step.Type: GrantFiled: January 21, 2013Date of Patent: February 1, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUDI AGInventors: Hiroko Kimura, Naoki Takehiro
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Patent number: 10406083Abstract: A cosmetic having excellent properties in transparency, spreadability, smoothness, skin compatibility and safety is prepared using a synthetic talc that is flake-like particles containing 2:1-type laminar crystals of silicate which have a basic structure of an octahedron sheet sandwiched between two tetrahedron sheets. The flake-like particle has a mean volume particle diameter of 0.5 to 100 ?m, and 0.3° or less of half width at half maximum of peak present at 2? equal to 9.4°±1° when measured by unoriented powder X-ray diffractometry (XRD) using CuK? rays, and the cosmetic is substantially free of Mg3Si2O5(OH)4.Type: GrantFiled: January 28, 2016Date of Patent: September 10, 2019Assignee: JO Cosmetics Co., Ltd.Inventor: Hiroko Kimura
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Patent number: 10263259Abstract: The present invention is to provide a method for producing core-shell catalyst particles with high catalytic activity per unit mass of platinum. Disclosed is a method for producing core-shell catalyst particles including a core containing palladium and a shell containing platinum and covering the shell, wherein the method includes: a step of depositing copper on the surface of the palladium-containing particles by applying a potential that is nobler than the oxidation-reduction potential of copper to the palladium-containing particles in a copper ion-containing electrolyte, and a step of forming the shell by, after the copper deposition step and inside the reaction system kept at ?3° C. or more and 10° C.Type: GrantFiled: December 22, 2014Date of Patent: April 16, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiichi Kaneko, Hiroko Kimura, Makoto Adachi
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Patent number: 9972848Abstract: The present invention is to provide fine catalyst particles with better catalytic performance than ever before and a carbon-supported catalyst with better catalytic performance than ever before.Type: GrantFiled: February 13, 2015Date of Patent: May 15, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyuki Kitao, Hiroko Kimura, Makoto Adachi, Keiichi Kaneko
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Publication number: 20180000702Abstract: A cosmetic having excellent properties in transparency, spreadability, smoothness, skin compatibility and safety is prepared using a synthetic talc that is flake-like particles containing 2:1-type laminar crystals of silicate which have a basic structure of an octahedron sheet sandwiched between two tetrahedron sheets. The flake-like particle has a mean volume particle diameter of 0.5 to 100 ?m, and 0.3° or less of half width at half maximum of peak present at 2? equal to 9.4°±1° when measured by unoriented powder X-ray diffractometry (XRD) using CuK? rays, and the cosmetic is substantially free of Mg3Si2O5(OH)4.Type: ApplicationFiled: January 28, 2016Publication date: January 4, 2018Applicant: JO Cosmetics Co., Ltd.Inventor: Hiroko KIMURA
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Publication number: 20170117554Abstract: The present invention is to provide fine catalyst particles with better catalytic performance than ever before and a carbon-supported catalyst with better catalytic performance than ever before.Type: ApplicationFiled: February 13, 2015Publication date: April 27, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyuki KITAO, Hiroko KIMURA, Makoto ADACHI, Keiichi KANEKO
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Publication number: 20160359173Abstract: The present invention is to provide a method for producing core-shell catalyst particles with high catalytic activity per unit mass of platinum. Disclosed is a method for producing core-shell catalyst particles including a core containing palladium and a shell containing platinum and covering the shell, wherein the method includes: a step of depositing copper on the surface of the palladium-containing particles by applying a potential that is nobler than the oxidation-reduction potential of copper to the palladium-containing particles in a copper ion-containing electrolyte, and a step of forming the shell by, after the copper deposition step and inside the reaction system kept at ?3° C. or more and 10° C.Type: ApplicationFiled: December 22, 2014Publication date: December 8, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiichi KANEKO, Hiroko KIMURA, Makoto ADACHI
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Patent number: 9385377Abstract: An object of the present invention is to provide a production method which can increase the activity of a catalyst particle comprising a core particle and an outermost layer, the core particle comprising at least one of palladium and a palladium alloy, and the outermost layer comprising at least one of platinum and a platinum alloy and covering the core particle.Type: GrantFiled: November 7, 2012Date of Patent: July 5, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUDI AGInventors: Keiichi Kaneko, Naoki Takehiro, Takumi Taniguchi, Tatsuya Arai, Noriyuki Kitao, Makoto Adachi, Hiroko Kimura
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Publication number: 20150318560Abstract: An object of the present invention is to provide a production method which can increase the activity of a catalyst particle comprising a core particle and an outermost layer, the core particle comprising at least one of palladium and a palladium alloy, and the outermost layer comprising at least one of platinum and a platinum alloy and covering the core particle.Type: ApplicationFiled: November 7, 2012Publication date: November 5, 2015Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, BALLARD POWER SYSTEMS INC.Inventors: Keiichi KANEKO, Naoki TAKEHIRO, Takumi TANIGUCHI, Tatsuya ARAI, Noriyuki KITAO, Makoto ADACHI, Hiroko KIMURA
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Patent number: 9002689Abstract: A particle size distribution creating method includes a particle size range determining step, an integrating step of integrating the frequency of appearance of particles within the particle size range determined in the particle size range determining step, a division point determining step of determining particle sizes that provide division points, using the integral of the frequency of appearance obtained in the integrating step, and a typical point determining step of determining the minimum particle size, maximum particle size and the particle sizes of the division points as typical points.Type: GrantFiled: January 7, 2014Date of Patent: April 7, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroko Kimura, Naoki Takehiro, Manabu Kato, Kazutaka Kimura
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Publication number: 20150093682Abstract: The present invention is to provide a method for producing a catalyst for fuel cells with excellent durability, and a fuel cell comprising a catalyst for fuel cells produced by the production method. Disclosed is a method for producing a catalyst for fuel cells, the catalyst comprising fine catalyst particles, each of which comprises a palladium-containing core particle and a platinum-containing outermost layer covering the core particle, and carbon supports on which the fine catalyst particles are supported, wherein the method comprises the steps of: preparing carbon supports on which palladium-containing particles are supported; fining the carbon supports; and covering the palladium-containing particles with a platinum-containing outermost layer after the fining step.Type: ApplicationFiled: January 21, 2013Publication date: April 2, 2015Inventors: Hiroko Kimura, Naoki Takehiro
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Patent number: 8843355Abstract: A particle size distribution creating method includes a particle size range determining step, an integrating step of integrating the frequency of appearance of particles within the particle size range determined in the particle size range determining step, a division point determining step of determining particle sizes that provide division points, using the integral of the frequency of appearance obtained in the integrating step, and a typical point determining step of determining the minimum particle size, maximum particle size and the particle sizes of the division points as typical points.Type: GrantFiled: January 7, 2014Date of Patent: September 23, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroko Kimura, Naoki Takehiro, Manabu Kato, Kazutaka Kimura
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Patent number: 8785078Abstract: The present invention provides a fuel cell which is capable of improving electric power generation efficiency at a time of high-temperature operation. The fuel cell 10 comprising: a membrane electrode assembly 4; and a pair of gas separators 7, 8 sandwiching the membrane electrode assembly 4 therebetween, wherein at least one of the gas separator(s) 7 and/or 8 comprises a compact layer(s) 7c and/or 8c which is capable of preventing permeation of fluid and a porous layer (s) 7d and/or 8d which allows permeation of fluid, and the porous layer(s) 7d and/or 8d is impregnated with a water-soluble liquid having higher boiling point than that of water.Type: GrantFiled: October 10, 2008Date of Patent: July 22, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroko Kimura, Naoki Takehiro
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Publication number: 20140200133Abstract: The present invention provides core-shell type metal nanoparticles having a high surface coverage of the core portion with the shell portion, and a method for producing the same. Disclosed is core-shell type metal nanoparticles comprising a core portion comprising a core metal material and a shell portion covering the core portion, wherein the core portion substantially has no {100} plane of the core metal material on the surface thereof.Type: ApplicationFiled: March 14, 2014Publication date: July 17, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroko KIMURA, Naoki TAKEHIRO, Koshi SEKIZAWA, Atsuo IIO, Tatsuya ARAI
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Patent number: 8735019Abstract: A fuel cell including a single fuel cell which includes a membrane electrode including a polymer electrolyte membrane, an anode electrode on one surface of the polymer electrolyte membrane, and a cathode electrode on another surface of the polymer electrolyte membrane, the anode electrode including an anode catalyst layer and a gas diffusion layer and the cathode electrode including a cathode catalyst layer and a gas diffusion layer. At least one of the anode cathode catalyst layers includes core-shell type catalyst particles, each having a core and a shell covering the core and including a shell metallic material. At least one of the polymer electrolyte membrane, anode catalyst layer, gas diffusion layer at the anode side, cathode catalyst layer and gas diffusion layer at the cathode side includes metallic nanoparticles having an average particle diameter different from that of the core-shell type catalyst particles and including the shell metallic material.Type: GrantFiled: April 7, 2010Date of Patent: May 27, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tatsuya Arai, Naoki Takehiro, Atsuo Iio, Koshi Sekizawa, Hiroko Kimura
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Publication number: 20140120435Abstract: A particle size distribution creating method includes a particle size range determining step, an integrating step of integrating the frequency of appearance of particles within the particle size range determined in the particle size range determining step, a division point determining step of determining particle sizes that provide division points, using the integral of the frequency of appearance obtained in the integrating step, and a typical point determining step of determining the minimum particle size, maximum particle size and the particle sizes of the division points as typical points.Type: ApplicationFiled: January 7, 2014Publication date: May 1, 2014Applicant: Toyota Jidosha Kabushiki KaishaInventors: Hiroko Kimura, Naoki Takehiro, Manabu Kato, Kazutaka Kimura
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Publication number: 20140114628Abstract: A particle size distribution creating method includes a particle size range determining step, an integrating step of integrating the frequency of appearance of particles within the particle size range determined in the particle size range determining step, a division point determining step of determining particle sizes that provide division points, using the integral of the frequency of appearance obtained in the integrating step, and a typical point determining step of determining the minimum particle size, maximum particle size and the particle sizes of the division points as typical points.Type: ApplicationFiled: January 7, 2014Publication date: April 24, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroko Kimura, Naoki Takehiro, Manabu Kato, Kazutaka Kimura
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Patent number: 8660827Abstract: A particle size distribution creating method includes a particle size range determining step, an integrating step of integrating the frequency of appearance of particles within the particle size range determined in the particle size range determining step, a division point determining step of determining particle sizes that provide division points, using the integral of the frequency of appearance obtained in the integrating step, and a typical point determining step of determining the minimum particle size, maximum particle size and the particle sizes of the division points as typical points.Type: GrantFiled: March 31, 2010Date of Patent: February 25, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroko Kimura, Naoki Takehiro, Manabu Kato, Kazutaka Kimura
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Patent number: 8652421Abstract: The invention is directed to an apparatus useful in conducting detection of compounds on blotting membranes. The device is comprised of several layers including a porous support layer below the blotting membrane(s), a flow distributor above the blotting membrane(s) and optionally a well on the flow distributor to contain the liquid to the desired area and to allow for lower starting volumes of such liquid. Preferably, the flow distributor is a non-binding or low binding hydrophilic porous membrane such as a 0.22 micron membrane and the support layer is a grid or sintered porous material. The distributor and support are held together to form an envelope around the membrane(s). The use of a hinge, clips and other such devices is preferred in doing so.Type: GrantFiled: October 18, 2006Date of Patent: February 18, 2014Assignee: EMD Millipore CorporationInventors: Masaharu Mabuchi, Hiroko Kimura, Marc Emerick, Phillip Clark, Kurt Greenizen
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Patent number: 8652422Abstract: The invention is directed to an apparatus useful in conducting detection of compounds on blotting membranes. The device is comprised of several layers including a porous support layer below the blotting membrane(s), a flow distributor above the blotting membrane(s) and optionally a well on the flow distributor to contain the liquid to the desired area and to allow for lower starting volumes of such liquid. Preferably, the flow distributor is a non-binding or low binding hydrophilic porous membrane such as a 0.22 micron membrane and the support layer is a grid or sintered porous material. The distributor and support are held together to form an envelope around the membrane(s). The use of a hinge, clips and other such devices is preferred in doing so.Type: GrantFiled: April 1, 2011Date of Patent: February 18, 2014Assignee: EMD Mllipore CorporationInventors: Masaharu Mabuchi, Hiroko Kimura, Marc Emerick, Phillip Clark, Kurt Greenizen