Patents by Inventor Shinji Jomori

Shinji Jomori 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: 10199668
    Abstract: A fuel cell system includes: a processing unit configured to perform an activation process of temporarily reducing a cathode potential of a single fuel cell to a target potential for a duration time at a processing frequency; a cationic impurity amount estimating unit configured to estimate an amount of cationic impurities included in an electrolyte membrane of the single fuel cell; and a process degree determining unit configured to determine, when the amount of cationic impurities is large, a degree of the activation process which is higher than that determined when the amount of cationic impurities is small by performing at least one action among actions of changing conditions of the activation process, the actions including an action of reducing the target potential, an action of increasing the duration time, and an action of increasing the processing frequency. The processing unit performs the activation process to the determined degree.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shinji Jomori
  • Publication number: 20180034083
    Abstract: A fuel cell system includes a fuel cell in which at least one of an anode electrode and a cathode electrode with an electrolyte membrane interposed therebetween from both sides contains a radical inhibitor; a purging device which performs a purging process of purging water in the fuel cell by supplying a purging gas into the fuel cell after a power generation stop request of the fuel cell is issued; and a purging control unit which sets a purging condition of the purging process so as to increase a purging power in stages or continuously as a correlation value correlated with an accumulated amount of the radical inhibitor accumulated in the electrolyte membrane changes with an increase in the accumulated amount.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji JOMORI, Yasushi ARAKI
  • Publication number: 20170104231
    Abstract: A fuel cell system includes: a processing unit configured to perform an activation process of temporarily reducing a cathode potential of a single fuel cell to a target potential for a duration time at a processing frequency; a cationic impurity amount estimating unit configured to estimate an amount of cationic impurities included in an electrolyte membrane of the single fuel cell; and a process degree determining unit configured to determine, when the amount of cationic impurities is large, a degree of the activation process which is higher than that determined when the amount of cationic impurities is small by performing at least one action among actions of changing conditions of the activation process, the actions including an action of reducing the target potential, an action of increasing the duration time, and an action of increasing the processing frequency. The processing unit performs the activation process to the determined degree.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 13, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shinji JOMORI
  • Patent number: 9509004
    Abstract: Fuel cell system mounting fuel cell vehicle including: fuel cells having platinum-containing catalyst as electrode catalyst; cell voltage meter configured to measure cell voltage of fuel cells; and controller controlling fuel cell system, wherein (a) cell voltage meter obtains first cell voltage in predefined idling state of fuel cells, (b) in response to changing operation state of fuel cell vehicle from driving state to stop state, controller changes operation state of fuel cells to idling state, and cell voltage meter obtains second cell voltage of fuel cells in idling state, (c) controller uses difference between first and second cell voltages to obtain recovery process voltage for recovering catalyst of fuel cells and recovery process time duration wherein cell voltage of fuel cells is kept at recovery process voltage, and (d) controller reduces voltage of fuel cells to recovery process voltage for recovery process time duration, preforming recovery process of catalyst.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: November 29, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji Jomori, Masaaki Matsusue
  • Patent number: 9472820
    Abstract: Fuel cell system mounting fuel cell vehicle including: fuel cells having platinum-containing catalyst as electrode catalyst; cell voltage meter configured to measure cell voltage of fuel cells; and controller controlling fuel cell system, wherein (a) cell voltage meter obtains first cell voltage in predefined idling state of fuel cells, (b) in response to changing operation state of fuel cell vehicle from driving state to stop state, controller changes operation state of fuel cells to idling state, and cell voltage meter obtains second cell voltage of fuel cells in idling state, (c) controller uses difference between first and second cell voltages to obtain recovery process voltage for recovering catalyst of fuel cells and recovery process time duration wherein cell voltage of fuel cells is kept at recovery process voltage, and (d) controller reduces voltage of fuel cells to recovery process voltage for recovery process time duration, preforming recovery process of catalyst.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: October 18, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji Jomori, Masaaki Matsusue
  • Publication number: 20150372329
    Abstract: Fuel cell system mounting fuel cell vehicle including: fuel cells having platinum-containing catalyst as electrode catalyst; cell voltage meter configured to measure cell voltage of fuel cells; and controller controlling fuel cell system, wherein (a) cell voltage meter obtains first cell voltage in predefined idling state of fuel cells, (b) in response to changing operation state of fuel cell vehicle from driving state to stop state, controller changes operation state of fuel cells to idling state, and cell voltage meter obtains second cell voltage of fuel cells in idling state, (c) controller uses difference between first and second cell voltages to obtain recovery process voltage for recovering catalyst of fuel cells and recovery process time duration wherein cell voltage of fuel cells is kept at recovery process voltage, and (d) controller reduces voltage of fuel cells to recovery process voltage for recovery process time duration, preforming recovery process of catalyst.
    Type: Application
    Filed: March 21, 2013
    Publication date: December 24, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji JOMORI, Masaaki MATSUSUE
  • Publication number: 20140335433
    Abstract: A fuel cell system includes a fuel cell and a controller that controls a voltage of the fuel cell. The controller sets a target increase amount ?V, based on a target voltage which is a target value of voltage relative to a predetermined electric current of the fuel cell. The controller sets a processing condition of a temporary voltage drop process, based on the target increase amount ?V. The controller performs a temporary voltage drop process under the set processing condition. The temporary voltage drop process temporarily drops the voltage of the fuel cell based on a power generation characteristic of the fuel cell, so as to cause a temporary increase in electric current of the fuel cell and change the power generation characteristic of the fuel cell.
    Type: Application
    Filed: November 13, 2012
    Publication date: November 13, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji Jomori, Masaaki Matsusue, Koichiro Ikeda
  • 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: 8568939
    Abstract: A fuel cell includes a membrane-electrode assembly, passageways provided on both sides of the membrane-electrode assembly, and fluid-permeable members provided between the membrane-electrode assembly and the passageways. Thermal resistance of the fluid-permeable member on an anode side is lower than that of the fluid-permeable member on a cathode side. In this case, heat flux at the anode side fluid-permeable member is increased, and heat flux at the cathode side fluid-permeable member is decreased.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: October 29, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Osamu Yumita, Shinji Jomori, Yoshihumi Oota
  • 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: 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
  • 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: 20110236787
    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: Application
    Filed: December 12, 2008
    Publication date: September 29, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji Jomori, Naoki Takehiro, Tatsuya Arai, Keiichi Kaneko, Takumi Taniguchi
  • Publication number: 20110123896
    Abstract: The present invention provides a fuel cell having a blocked passage and showing capability of inhibiting desiccation and flooding of the membrane electrode assembly.
    Type: Application
    Filed: December 12, 2008
    Publication date: May 26, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji Jomori, Naoki Takehiro, Tatsuya Arai, Keiichi Kaneko, Takumi Taniguchi
  • Publication number: 20100255403
    Abstract: A fuel cell includes a membrane-electrode assembly, passageways provided on both sides of the membrane-electrode assembly, and fluid-permeable members provided between the membrane-electrode assembly and the passageways. Thermal resistance of the fluid-permeable member on an anode side is lower than that of the fluid-permeable member on a cathode side. In this case, heat flux at the anode side fluid-permeable member is increased, and heat flux at the cathode side fluid-permeable member is decreased.
    Type: Application
    Filed: August 22, 2007
    Publication date: October 7, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Osamu Yumita, Shinji Jomori, Yoshihumi Oota