Patents by Inventor Yasuhiro Ueyama
Yasuhiro Ueyama 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: 11069903Abstract: A catalyst, includes: a carbon support that possesses functional groups including a carboxyl group; and a metal that is supported onto the carbon support, wherein the proportion of the carboxyl group to the functional groups is 10% or higher. A method for producing a catalyst includes: (i) supporting metal particles onto a carbon support; (ii) bringing the carbon support into contact with an acid solution; and (iii) calcining the carbon support after Step (ii), wherein the carbon support included in the produced catalyst possesses functional groups including a carboxyl group, and the proportion of said carboxyl group to the functional groups is 10% or higher.Type: GrantFiled: October 30, 2017Date of Patent: July 20, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shuzo Tsuchida, Ryouhei Seki, Yasuhiro Ueyama
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Patent number: 11005119Abstract: In an electrolyte membrane for a fuel cell, having nanofiber unwoven cloth buried in an electrolyte resin, the nanofiber unwoven cloth is disposed being exposed only from one face of the electrolyte membrane. The fuel cell includes a MEA having an anode electrode disposed on one face of the electrolyte membrane and having a cathode electrode disposed on the other face thereof, and a pair of separators holding the MEA by sandwiching the MEA therebetween. Thereby, the electrolyte membrane for a fuel cell, the manufacturing method of the electrolyte membrane, and the fuel cell are provided with which the electric power generation property and productivity are improved.Type: GrantFiled: June 30, 2014Date of Patent: May 11, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toshiyuki Kojima, Masahiro Mori, Shinya Kikuzumi, Yasuhiro Ueyama, Yasushi Taniguchi
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Publication number: 20190103613Abstract: A catalyst layer, includes: a carrier; metal particles located over the carrier; an underlayer located on the carrier; and an ionomer-based layer located over the underlayer, wherein the underlayer includes a polymer material, and covers at least parts of the metal particles, and the ionomer-based layer includes a proton-conducting resin. A fuel cell electrode includes the catalyst layer, and a fuel cell including the above catalyst layer. A method for producing a catalyst layer, includes: bringing at least one first solution including a polymer material into contact with a metal-particle-supported carrier to form an underlayer; and bringing a second solution including a proton-conducting resin into contact with the metal-particle-supported carrier to coat said metal-particle-supported carrier with the proton-conducting resin.Type: ApplicationFiled: September 20, 2018Publication date: April 4, 2019Inventors: SHUZO TSUCHIDA, RYOUHEI SEKI, YASUHIRO UEYAMA
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Patent number: 10153495Abstract: Provided is a method for producing a catalyst, including: (i) mixing a core metal salt that serves as a material for a core metal, and a complexing agent (a) to produce a core metal complex solution containing a core metal complex; (ii) mixing a shell metal salt that serves as a material for a shell metal, and a complexing agent (b) to produce a shell metal complex solution containing a shell metal complex; (iii) mixing a carbon powder and a dispersing agent to produce a carbon powder dispersion; (iv) mixing the core metal complex solution, the shell metal complex solution, and the carbon powder dispersion, and reducing the core metal complex and the shell metal complex on the carbon powder by using at least one reducing agent; and (v) drying and baking at a predetermined temperature the carbon powder resulting from Step (iv), said carbon powder having a core-shell structure that includes the core metal and the shell metal.Type: GrantFiled: February 3, 2017Date of Patent: December 11, 2018Assignee: Panasonic CorporationInventors: Shuzo Tsuchida, Yasushi Taniguchi, Ryouhei Seki, Yasuhiro Ueyama, Hideyuki Takahashi, Shun Yokoyama, Kazuyuki Tohji
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Publication number: 20180159145Abstract: A catalyst, includes: a carbon support that possesses functional groups including a carboxyl group; and a metal that is supported onto the carbon support, wherein the proportion of the carboxyl group to the functional groups is 10% or higher. A method for producing a catalyst includes: (i) supporting metal particles onto a carbon support; (ii) bringing the carbon support into contact with an acid solution; and (iii) calcining the carbon support after Step (ii), wherein the carbon support included in the produced catalyst possesses functional groups including a carboxyl group, and the proportion of said carboxyl group to the functional groups is 10% or higher.Type: ApplicationFiled: October 30, 2017Publication date: June 7, 2018Inventors: SHUZO TSUCHIDA, RYOUHEI SEKI, YASUHIRO UEYAMA
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Patent number: 9937465Abstract: A gas-producing apparatus that produces hydrogen or oxygen, includes: an electrolysis cell that produces hydrogen and oxygen through electrolysis of water; and a gas-liquid separation device that is connected to the electrolysis cell and that receives the water and the hydrogen or the oxygen, wherein the gas-liquid separation device includes a first chamber and a second chamber, the first chamber and the second chamber are separated by a partition wall, and a lower part of the first chamber and a lower part of the second chamber communicate with one another.Type: GrantFiled: April 18, 2016Date of Patent: April 10, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Norihiko Kawabata, Kazuya Ushirokawa, Yasuhiro Ueyama, Shinji Yoshino, Reiko Taniguchi
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Patent number: 9929412Abstract: A manufacturing method of a supported platinum catalyst, includes: generating a platinum group salt solution using platinum group salts and a complexing agent; mixing the platinum group salt solution and a carbon powder dispersion in which carbon powder is dispersed; and adding a reducing agent to a mixed solution of the platinum group salt solution and the carbon powder dispersion, and reducing the platinum group salts to allow the platinum group particles to be supported on the carbon powder.Type: GrantFiled: April 29, 2016Date of Patent: March 27, 2018Assignee: Panasonic CorporationInventors: Yasuhiro Ueyama, Toshiyuki Kojima, Yasushi Taniguchi, Kazunori Kubota, Hideyuki Takahashi, Shun Yokoyama, Kazuyuki Tohji, Shuzo Tsuchida
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Publication number: 20170244111Abstract: Provided is a method for producing a catalyst, including: (i) mixing a core metal salt that serves as a material for a core metal, and a complexing agent (a) to produce a core metal complex solution containing a core metal complex; (ii) mixing a shell metal salt that serves as a material for a shell metal, and a complexing agent (b) to produce a shell metal complex solution containing a shell metal complex; (iii) mixing a carbon powder and a dispersing agent to produce a carbon powder dispersion; (iv) mixing the core metal complex solution, the shell metal complex solution, and the carbon powder dispersion, and reducing the core metal complex and the shell metal complex on the carbon powder by using at least one reducing agent; and (v) drying and baking at a predetermined temperature the carbon powder resulting from Step (iv), said carbon powder having a core-shell structure that includes the core metal and the shell metal.Type: ApplicationFiled: February 3, 2017Publication date: August 24, 2017Inventors: SHUZO TSUCHIDA, YASUSHI TANIGUCHI, RYOUHEI SEKI, YASUHIRO UEYAMA, HIDEYUKI TAKAHASHI, SHUN YOKOYAMA, KAZUYUKI TOHJI
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Publication number: 20160372759Abstract: A manufacturing method of a supported platinum catalyst, includes: generating a platinum group salt solution using platinum group salts and a complexing agent; mixing the platinum group salt solution and a carbon powder dispersion in which carbon powder is dispersed; and adding a reducing agent to a mixed solution of the platinum group salt solution and the carbon powder dispersion, and reducing the platinum group salts to allow the platinum group particles to be supported on the carbon powder.Type: ApplicationFiled: April 29, 2016Publication date: December 22, 2016Inventors: YASUHIRO UEYAMA, TOSHIYUKI KOJIMA, YASUSHI TANIGUCHI, KAZUNORI KUBOTA, HIDEYUKI TAKAHASHI, SHUN YOKOYAMA, KAZUYUKI TOHJI, SHUZO TSUCHIDA
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Publication number: 20160332110Abstract: A gas-producing apparatus that produces hydrogen or oxygen, includes: an electrolysis cell that produces hydrogen and oxygen through electrolysis of water; and a gas-liquid separation device that is connected to the electrolysis cell and that receives the water and the hydrogen or the oxygen, wherein the gas-liquid separation device includes a first chamber and a second chamber, the first chamber and the second chamber are separated by a partition wall, and a lower part of the first chamber and a lower part of the second chamber communicate with one another.Type: ApplicationFiled: April 18, 2016Publication date: November 17, 2016Inventors: NORIHIKO KAWABATA, KAZUYA USHIROKAWA, YASUHIRO UEYAMA, SHINJI YOSHINO, REIKO TANIGUCHI
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Patent number: 9419301Abstract: An electrolyte membrane for solid polymer fuel cell includes a reinforce membrane made of nonwoven fibers and an electrolyte provided in a space among the nonwoven fibers. The nonwoven fibers have a non-uniform mass distribution in a plane of the electrolyte membrane. A mass of the nonwoven fibers per unit area in a region corresponding to at least part of a peripheral portion of a fuel cell-use gasket frame is greater than a mass of the nonwoven fibers per unit area in a region corresponding to a center portion of the gasket frame. The electrolyte membrane for solid polymer fuel cell is attached to the fuel cell-use gasket frame.Type: GrantFiled: November 14, 2011Date of Patent: August 16, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masahiro Mori, Shinya Kikuzumi, Tsutomu Kawashima, Yasuhiro Ueyama, Kazunori Kubota
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Publication number: 20160028100Abstract: In an electrolyte membrane for a fuel cell, having nanofiber unwoven cloth buried in an electrolyte resin, the nanofiber unwoven cloth is disposed being exposed only from one face of the electrolyte membrane. The fuel cell includes a MEA having an anode electrode disposed on one face of the electrolyte membrane and having a cathode electrode disposed on the other face thereof, and a pair of separators holding the MEA by sandwiching the MEA therebetween. Thereby, the electrolyte membrane for a fuel cell, the manufacturing method of the electrolyte membrane, and the fuel cell are provided with which the electric power generation property and productivity are improved.Type: ApplicationFiled: June 30, 2014Publication date: January 28, 2016Inventors: Toshiyuki KOJIMA, Masahiro MORI, Shinya KIKUZUMI, Yasuhiro UEYAMA, Yasushi TANIGUCHI
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Patent number: 8986882Abstract: The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.Type: GrantFiled: December 26, 2007Date of Patent: March 24, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shuji Ito, Yasutaka Kogetsu, Kazuya Iwamoto, Kazuyoshi Honda, Taisuke Yamamoto, Yasuhiro Ueyama, Keisuke Ohara, Hitoshi Katayama
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Publication number: 20130273455Abstract: An electrolyte membrane for solid polymer fuel cell includes a reinforce membrane made of nonwoven fibers and an electrolyte provided in a space among the nonwoven fibers. The nonwoven fibers have a non-uniform mass distribution in a plane of the electrolyte membrane. A mass of the nonwoven fibers per unit area in a region corresponding to at least part of a peripheral portion of a fuel cell-use gasket frame is greater than a mass of the nonwoven fibers per unit area in a region corresponding to a center portion of the gasket frame. The electrolyte membrane for solid polymer fuel cell is attached to the fuel cell-use gasket frame.Type: ApplicationFiled: November 14, 2011Publication date: October 17, 2013Inventors: Masahiro Mori, Shinya Kikuzumi, Tsutomu Kawashima, Yasuhiro Ueyama, Kazunori Kubota
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Patent number: 8293405Abstract: The present invention relates to a rechargeable lithium ion battery having an electrode plate with a high active material density and high electrolyte permeability. Upon producing the rechargeable lithium ion battery, hollow resin particles that can be collapsed by rolling are incorporated in a positive electrode mixture layer or a negative electrode mixture layer before the electrode mixture layer is rolled. The hollow resin particles are collapsed in the course of rolling the positive electrode mixture layer or the negative electrode mixture layer, so that the active material density can be easily increased. Further, the collapsed resin particles form unevenness on the surface of the electrode plate and also form open pores in the electrode plate, so that electrolyte permeability can be enhanced. As a result, the discharge capacity and rate characteristics of rechargeable lithium ion batteries can be increased.Type: GrantFiled: May 19, 2008Date of Patent: October 23, 2012Assignee: Panasonic CorporationInventors: Kazunori Kubota, Yasuhiro Ueyama
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Patent number: 7981571Abstract: A solid polymer electrolyte fuel cell includes a membrane electrode assembly having an anode, a cathode arranged facing the anode, and a polyelectrolyte membrane arranged between the anode and the cathode, and a pair of separator plates that are arranged facing each other so as to sandwich the membrane electrode assembly, and have an anode side gas channel for supplying a fuel gas to the anode, and a cathode side gas channel for supplying an oxidant gas to the cathode, formed thereon, wherein the catalyst layer of the anode contains at least one electrode catalyst selected from the group consisting of Pt particles and Pt alloy particles, having a particle diameter of from 6 to 10 nm, the catalyst layer of the anode has a thickness of from 1 to 5 ?m, Pt volume density in the catalyst layer of the anode is from 1 to 5 g/cm3, the catalyst layer of the cathode has a thickness of 10 ?m or more, and Pt volume density in the catalyst layer of the cathode is from 0.1 to 0.5 g/cm3.Type: GrantFiled: July 12, 2005Date of Patent: July 19, 2011Assignee: Panasonic CorporationInventors: Yoichiro Tsuji, Yasuhiro Ueyama, Makoto Uchida, Yusuke Ozaki
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Publication number: 20110052954Abstract: To provide an electrode plate capable of retaining a larger amount of active material and having a composite material layer uniform in thickness, a positive electrode plate (6) or a negative electrode plate (7) is formed by laminating a composite material layer (1) of the active material on a surface of a current collector plate (2) in strip form. A slope in a thickness direction (X/Z) of the end surfaces of the composite material layer (1) along the longer sides of the current collector plate (2) is “0<(X/Z)?1”.Type: ApplicationFiled: February 4, 2010Publication date: March 3, 2011Applicant: PANASONIC CORPORATIONInventors: Isao Fujiwara, Takao Kuromiya, Yasuhiro Ueyama
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Patent number: 7823532Abstract: The die as provided is a die in which an upper block is placed on an upper surface of a lower block with a lower surface of the upper block in contact with the upper surface, wherein the lower block includes a manifold and a slit serving as a path for discharging paint from the manifold to the outside, constituted respectively from between the lower block and the lower surface of the upper block by forming a cavity and a space which communicates with the outside from this cavity along a columnar direction, respectively, from one end face of a columnar body with a trapezoidal shape of cross section to the other end face, a paint supply path which communicates with the manifold is formed from an outer side located between the one end face and the other end face of the lower block, a slit space dimension of the slit between front end portions in a paint discharge direction of the lower block and the upper block in a discharge port serving as an open end to the outside is smallest on the one end face side and incType: GrantFiled: September 27, 2006Date of Patent: November 2, 2010Assignee: Panasonic CorporationInventors: Akihiro Horikawa, Yasuhiro Ueyama, Masaru Watanabe
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Publication number: 20090280407Abstract: The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.Type: ApplicationFiled: December 26, 2007Publication date: November 12, 2009Inventors: Shuji Ito, Yasutaka Kogetsu, Kazuya Iwamoto, Kazuyoshi Honda, Taisuke Yamamoto, Yasuhiro Ueyama, Keisuke Ohara, Hitoshi Katayama
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Publication number: 20090191460Abstract: An object of the present invention is to provide a nonaqueous secondary battery with high capacity and less cycle degradation and a method for producing thereof. The nonaqueous secondary battery of the present invention comprises a positive electrode having a positive electrode current collector and a positive electrode mixture layer disposed on the positive electrode current collector, a negative electrode having a negative electrode current collector and a negative electrode mixture layer disposed on the negative electrode current collector and a separator disposed between the positive electrode and the negative electrode, wherein the positive electrode mixture layer or the negative electrode mixture layer contains active material particles and a particulate binder adhered to the surface of the active material particles.Type: ApplicationFiled: December 30, 2008Publication date: July 30, 2009Applicant: PANASONIC CORPORATIONInventors: Isao FUJIWARA, Yasuhiro UEYAMA, Takao KUROMIYA