Patents by Inventor Takumi Taniguchi

Takumi Taniguchi 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).

  • Publication number: 20200162002
    Abstract: A rotating electric machine drive system includes: a rotating electric machine equipped with: a rotor having one magnetic pole configured by permanent magnets, and a salient pole portion that is magnetically convex in a radial direction; and a stator wound with a multiphase stator winding; an inverter for supplying electric power to the stator winding; and a control unit for controlling energization current of the inverters. The control unit performs energization control of the stator winding such that a fundamental wave current at a fundamental frequency synchronized with a rotational speed of the rotor, and a harmonic current that is triple the fundamental frequency flow in the stator winding, and such that energization of the harmonic current generates a stator magnetic field having a specified lead phase or delay phase with respect to a third-order magnetic field of the rotor.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 21, 2020
    Applicant: DENSO CORPORATION
    Inventors: Makoto TANIGUCHI, Takumi INOUE, Kazushige OKUMOTO, Akira FUKUSHIMA
  • Patent number: 10326147
    Abstract: The present invention is to provide a catalyst for fuel cells, which is able to inhibit gas diffusion resistance and shows high IV characteristics far more than conventional fuel cell catalysts, and a method for producing the catalyst. Disclosed is a catalyst for fuel cells, comprising fine catalyst particles, each of which comprises a palladium-containing particle and an outermost layer containing platinum and covering the palladium-containing particle, and a carrier on which the fine catalyst particles are supported, wherein the catalyst for fuel cells satisfies 0.9×S1?S2 in which S1 is a BET specific surface area of a material for the carrier, and S2 is a BET specific surface area of the carrier in the catalyst for fuel cells.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: June 18, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiichi Kaneko, Takumi Taniguchi, Makoto Adachi, Mayumi Yamada
  • Patent number: 9385377
    Abstract: 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: Grant
    Filed: November 7, 2012
    Date of Patent: July 5, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUDI AG
    Inventors: Keiichi Kaneko, Naoki Takehiro, Takumi Taniguchi, Tatsuya Arai, Noriyuki Kitao, Makoto Adachi, Hiroko Kimura
  • Publication number: 20160049664
    Abstract: The present invention is to provide a catalyst for fuel cells, which is able to inhibit gas diffusion resistance and shows high IV characteristics far more than conventional fuel cell catalysts, and a method for producing the catalyst. Disclosed is a catalyst for fuel cells, comprising fine catalyst particles, each of which comprises a palladium-containing particle and an outermost layer containing platinum and covering the palladium-containing particle, and a carrier on which the fine catalyst particles are supported, wherein the catalyst for fuel cells satisfies 0.9×S1?S2 in which S1 is a BET specific surface area of a material for the carrier, and S2 is a BET specific surface area of the carrier in the catalyst for fuel cells.
    Type: Application
    Filed: April 18, 2013
    Publication date: February 18, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiichi KANEKO, Takumi TANIGUCHI, Makoto ADACHI, Mayumi YAMADA
  • Patent number: 9190212
    Abstract: A method of manufacturing a multilayer ceramic electronic component includes a step of preparing a first ceramic green sheet on which at least one of a first internal electrode pattern and a second internal electrode pattern are printed, a second ceramic green sheet on which at least one of a first dummy conductor pattern and a second dummy conductor pattern are printed, and a third ceramic green sheet on which at least one of a third internal electrode pattern and a fourth internal electrode pattern are printed, wherein a width of the third dummy conductor pattern is made less than a width of the first dummy conductor pattern, and a width of the fourth dummy conductor pattern is made less than a width of the second dummy conductor pattern.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: November 17, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takumi Taniguchi, Hiroyuki Matsumoto
  • Publication number: 20150318560
    Abstract: 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: Application
    Filed: November 7, 2012
    Publication date: November 5, 2015
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, BALLARD POWER SYSTEMS INC.
    Inventors: Keiichi KANEKO, Naoki TAKEHIRO, Takumi TANIGUCHI, Tatsuya ARAI, Noriyuki KITAO, Makoto ADACHI, Hiroko KIMURA
  • Patent number: 8877393
    Abstract: A fuel cell is disclosed comprising: a power generation layer including an electrolyte membrane, and an anode and a cathode provided on respective surfaces of the electrolyte membrane; a fuel gas flow path layer located on a side of the anode of the power generation layer to supply a fuel gas to the anode while flowing the fuel gas along a flow direction of the fuel gas approximately orthogonal to a stacking direction in which respective layers of the fuel cell are stacked; and an oxidizing gas flow path layer located on a side of the cathode of the power generation layer to supply an oxidizing gas to the cathode while flowing the oxidizing gas along a flow direction of the oxidizing gas opposed to the flow direction of the fuel gas.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: November 4, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroaki Takeuchi, Tomohiro Ogawa, Ryouichi Nanba, Takumi Taniguchi, Shinji Jomori, Koichiro Ikeda, Shigeki Hasegawa, Masayuki Ito, Hitoshi Hamada, Naohiro Takeshita
  • Patent number: 8593785
    Abstract: A laminate includes insulating layers laminated to each other. Capacitor conductors are embedded in the laminate and have exposed portions exposed between the insulating layers at respective surfaces of the laminate. The capacitor conductors define a capacitor. External electrodes are provided by plating on the respective surfaces of the laminate so as to directly cover the respective exposed portions. When the laminate is viewed in plan in a y axis direction, the length of each of the exposed portions is approximately 35% to approximately 45% of the length of an outer periphery of the insulating layer.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: November 26, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takehisa Sasabayashi, Takumi Taniguchi
  • Publication number: 20130281555
    Abstract: A proton exchange material includes perfluorinated carbon backbone chains and side chains extending off of the perfluorinated carbon backbone chains. The perfluorinated side chains include cross-link chains that have multiple sulfonimide groups, —SO2—NH—SO2—.
    Type: Application
    Filed: January 11, 2011
    Publication date: October 24, 2013
    Applicants: UTC Power Corporation
    Inventors: Zhiwei Yang, Mallika Gummalla, Ned E. Cipollini, Fuqiang Liu, Yoichi Hosokawa, Takumi Taniguchi, Joseph S. Thrasher, Richard Edward Fernandez, Todd S. Sayler, Alfred Waterfeld
  • Patent number: 8477476
    Abstract: A ceramic electronic component includes a ceramic element including opposed side surfaces, an inner electrode, and an external terminal electrode. The external terminal electrode includes a first conductive layer and a second conductive layer. The first conductive layer is formed by plating so as to be electrically coupled to an exposed section of the internal electrode exposed to the side surfaces. The second conductive layer is arranged so as to cover the first conductive layer and includes conductive resin. The value of T2/T1 is in the range of about 3.4 to about 11.3, where T1 indicates the thickness of the first conductive layer and T2 indicates the thickness of the second conductive layer.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: July 2, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi Ishida, Takumi Taniguchi, Takehisa Sasabayashi, Tomoyuki Kuwano, Akihiro Motoki, Toshiyuki Iwanaga
  • Publication number: 20120234463
    Abstract: A multilayer ceramic electronic component includes dummy conductor patterns on a ceramic green sheet laminated in an earlier stage of the lamination and sheet-by-sheet crimping process that have widths that are less than the widths of dummy conductor patterns on a ceramic green sheet laminated in a later stage of the lamination and sheet-by-sheet crimping process.
    Type: Application
    Filed: May 31, 2012
    Publication date: September 20, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Takumi TANIGUCHI, Hiroyuki MATSUMOTO
  • Publication number: 20120214082
    Abstract: A fuel cell is disclosed comprising: a power generation layer including an electrolyte membrane, and an anode and a cathode provided on respective surfaces of the electrolyte membrane; a fuel gas flow path layer located on a side of the anode of the power generation layer to supply a fuel gas to the anode while flowing the fuel gas along a flow direction of the fuel gas approximately orthogonal to a stacking direction in which respective layers of the fuel cell are stacked; and an oxidizing gas flow path layer located on a side of the cathode of the power generation layer to supply an oxidizing gas to the cathode while flowing the oxidizing gas along a flow direction of the oxidizing gas opposed to the flow direction of the fuel gas.
    Type: Application
    Filed: May 21, 2010
    Publication date: August 23, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki Takeuchi, Tomohiro Ogawa, Ryouichi Nanba, Takumi Taniguchi, Shinji Jomori, Koichiro Ikeda, Shigeki Hasegawa, Masayuki Ito, Hitoshi Hamada, Naohiro Takeshita
  • Patent number: 8221932
    Abstract: A fuel cell 10 includes an MEA 200, an anode separator 100 and a cathode separator 300. The anode separator 100 forms alternate first and second flow channels 110 and 120. The first flow channel 110 is blocked in the middle. The second flow channel 120 is blocked in the both ends. The anode separator 300 forms alternate first and second flow channels 310 and 320. The first flow channel 310 is blocked in the middle. The second flow channel 320 is blocked in the both ends.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: July 17, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoki Takehiro, Shinji Jomori, Takumi Taniguchi, Keiichi Kaneko, Tatsuya Arai
  • Patent number: 8213152
    Abstract: A multilayer ceramic electronic component includes dummy conductor patterns on a ceramic green sheet laminated in an earlier stage of the lamination and sheet-by-sheet crimping process that have widths that are less than the widths of dummy conductor patterns on a ceramic green sheet laminated in a later stage of the lamination and sheet-by-sheet crimping process.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: July 3, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takumi Taniguchi, Hiroyuki Matsumoto
  • Patent number: 8163432
    Abstract: The present invention provides a fuel cell capable of inhibiting desiccation and flooding of a membrane electrode assembly. The fuel cell has a laminated body having a membrane electrode assembly including an electrolyte membrane sandwiched by an anode catalyst layer and a cathode catalyst layer. A pair of separators sandwiches the laminated body, and between at least one separator and the laminated body, inlet and outlet passages are formed. The inlet passage is blocked at a downstream end of the reaction gas supplied to the laminated body and the outlet passage is blocked at an upstream end of the reaction gas having passed through the laminated body. The inlet passage and the outlet passage are arranged separately from each other. The depth of the upstream region of the inlet passage is larger than that of the downstream region of the inlet passage.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: April 24, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinji Jomori, Naoki Takehiro, Tatsuya Arai, Keiichi Kaneko, Takumi Taniguchi
  • Patent number: 8129070
    Abstract: The present invention provides a fuel cell having obstructed passages, which is capable of inhibiting the occurrence of flooding. The fuel cell comprises: a stacked body comprising at least a membrane electrode assembly; and a pair of separators sandwiching the stacked body. A face of the stacked body side of the separator is provided with inlet passage(s) through which reaction gas to be supplied to the stacked body passes and outlet passage(s) through which reaction gas having passed the stacked body passes. The inlet passage is obstructed at a downstream end of the reaction gas to be supplied to the stacked body and the outlet passage is obstructed at an upstream end of the reaction gas having passed through the stacked body. The inlet passage and the outlet passage is arranged separately from each other, and the inlet passage is arranged on both ends of the face of the stacked body side of the separator in the passage width direction of the inlet passage and the outlet passage.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: March 6, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinji Jomori, Naoki Takehiro, Tatsuya Arai, Keiichi Kaneko, Takumi Taniguchi
  • Patent number: 8125765
    Abstract: In a laminated ceramic electronic component including a ceramic element body including a plurality of effective sections, each of which constitutes a circuit element such as a laminated capacitor unit, bumps generated between the effective portions and a gap interposed between the effective portions can be made minimized. Specifically, the ceramic element body includes a first effective section including a first circuit element and a second effective section including a second circuit element. A gap is provided between the first and second effective section. Floating internal conductors are arranged in the gap at least in one of first and second external layer sections, the first external section being interposed between a first main surface and the first and second effective sections, and the second external layer section being interposed between a second main surface and the first and second effective sections.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: February 28, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi Ishida, Takumi Taniguchi, Masaki Tani
  • Patent number: 8125764
    Abstract: An electronic component includes a substantially rectangular parallelepiped electronic component body and first to fourth external electrodes. The first to fourth external electrodes are arranged such that a shaped defined by joining the centers of portions of the first to fourth external electrodes on a first main surface with a substantially straight line is substantially square. The first main surface is provided with a substantially linear orientation identifying mark disposed thereon. The orientation identifying mark passes through an intersection of two diagonals of the substantially square shape and extends along the longitudinal direction or the width direction.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: February 28, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi Ishida, Takumi Taniguchi, Masaki Tani
  • Publication number: 20120003562
    Abstract: A fuel cell 10 includes an MEA 200, an anode separator 100 and a cathode separator 300. The anode separator 100 forms alternate first and second flow channels 110 and 120. The first flow channel 110 is blocked in the middle. The second flow channel 120 is blocked in the both ends. The anode separator 300 forms alternate first and second flow channels 310 and 320. The first flow channel 310 is blocked in the middle. The second flow channel 320 is blocked in the both ends.
    Type: Application
    Filed: January 20, 2010
    Publication date: January 5, 2012
    Applicants: UTC POWER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Takehiro, Shinji Jomori, Takumi Taniguchi, Keiichi Kaneko, Tatsuya Arai
  • Publication number: 20110267736
    Abstract: A laminate includes insulating layers laminated to each other. Capacitor conductors are embedded in the laminate and have exposed portions exposed between the insulating layers at respective surfaces of the laminate. The capacitor conductors define a capacitor. External electrodes are provided by plating on the respective surfaces of the laminate so as to directly cover the respective exposed portions. When the laminate is viewed in plan in a y axis direction, the length of each of the exposed portions is approximately 35% to approximately 45% of the length of an outer periphery of the insulating layer.
    Type: Application
    Filed: April 25, 2011
    Publication date: November 3, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Takehisa SASABAYASHI, Takumi TANIGUCHI