Patents by Inventor Haruki Kondo

Haruki Kondo 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: 20210270200
    Abstract: A gas sensor includes a sensor element body having a porous layer provided on an outer surface, and a power supply device which supplies power to a heater element that is in the sensor element body. The amount of power being applied to the heater element by the power supply device when gas detection is being performed by the gas sensor in a steady state is designated as P [W], the volume of the length range of a heating region of the heater element provided in the sensor element body as V [mm3], and the applied power density as X [W/mm3], where X is a value expressed by P/V. In that case, the following relationship is satisfied between the applied power density X and the average thickness Y [?m] of the porous layer: Y?509.32?2884.89X+5014.
    Type: Application
    Filed: April 28, 2020
    Publication date: September 2, 2021
    Inventors: Toru TAKEUCHI, Tomotaka MORI, Shota IMADA, Yoshiharu MIYAKE, Hiroki NISHIJIMA, Haruki KONDO, Yasushi HIRATA
  • Patent number: 10837939
    Abstract: The present disclosure provides a gas sensor element comprising a porous protective layer with improved water repellency upon continuously water pouring, which is a gas sensor element comprising: a detection portion; and a porous protective layer formed around the detection portion, wherein the porous protective layer is formed from an aggregate containing alumina and a coating material containing silica, and in the porous protective layer, the weight concentration x % by weight of the coating material with respect to the total weight of the aggregate and the coating material, and the porosity y %, satisfy the following formula (1): y?0.0058x2?1.2666x+68??(1), and in the porous protective layer, the pore volume of pores having a pore diameter of 100 nm or less is 0.02 mL/g or less.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 17, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hiroki Nishijima, Yoshiharu Miyake, Haruki Kondo, Yasushi Hirata, Hirofumi Suzuki, Kei Sugiura, Toru Takeuchi
  • Publication number: 20200256270
    Abstract: A gas sensor includes a sensor element body having a porous layer provided on an outer surface, and a power supply device which supplies power to a heater element that is in the sensor element body. The amount of power being applied to the heater element by the power supply device when gas detection is being performed by the gas sensor in a steady state is designated as P [W], the volume of the length range of a heating region of the heater element provided in the sensor element body as V [mm3], and the applied power density as X [W/mm3], where X is a value expressed by P/V. In that case, the following relationship is satisfied between the applied power density X and the average thickness Y [?m] of the porous layer: Y?509.32?2884.89X+5014.
    Type: Application
    Filed: April 28, 2020
    Publication date: August 13, 2020
    Inventors: Toru TAKEUCHI, Tomotaka MORI, Shota IMADA, Yoshiharu MIYAKE, Hiroki NISHIJIMA, Haruki KONDO, Yasushi HIRATA
  • Publication number: 20190242848
    Abstract: The present disclosure provides a gas sensor element comprising a porous protective layer with improved water repellency upon continuously water pouring, which is a gas sensor element comprising: a detection portion; and a porous protective layer formed around the detection portion, wherein the porous protective layer is formed from an aggregate containing alumina and a coating material containing silica, and in the porous protective layer, the weight concentration x % by weight of the coating material with respect to the total weight of the aggregate and the coating material, and the porosity y %, satisfy the following formula (1): y?0.0058x2-1.2666x+68??(1), and in the porous protective layer, the pore volume of pores having a pore diameter of 100 nm or less is 0.02 mL/g or less.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 8, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hiroki NISHIJIMA, Yoshiharu MIYAKE, Haruki KONDO, Yasushi HIRATA, Hirofumi SUZUKI, Kei SUGIURA, Toru TAKEUCHI
  • Patent number: 9958412
    Abstract: A gas sensor element having a porous protective layer with excellent water repellency. Provided is a gas sensor element having a detection portion, which has a stack of a solid electrolyte body having a pair of electrodes on opposite sides thereof and a heat generating body including a heat generating source, and a porous protective layer formed around the detection portion. The porous protective layer has thermal conductivity ? in the range of 0.2 to 5 W/mK, and has ?Cp?, which is the product of the thermal conductivity ?(W/mK), density ?(g/m3), and specific heat Cp(J/gK), in the range of 5.3×105 to 2.1×107 WJ/m4K2.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 1, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hiroki Nishijima, Yoshiharu Miyake, Haruki Kondo, Makoto Nakae, Tooru Takeuchi, Masayuki Tamura, Atsushi Murai
  • Publication number: 20160018357
    Abstract: A gas sensor element having a porous protective layer with excellent water repellency. Provided is a gas sensor element having a detection portion, which has a stack of a solid electrolyte body having a pair of electrodes on opposite sides thereof and a heat generating body including a heat generating source, and a porous protective layer formed around the detection portion. The porous protective layer has thermal conductivity ? in the range of 0.2 to 5 W/mK, and has ?Cpp, which is the product of the thermal conductivity ?(W/mK), density ?(g/m3), and specific heat Cp(J/gK), in the range of 5.3×105 to 2.1×107 WJ/m4K2.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 21, 2016
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki NISHIJIMA, Yoshiharu MIYAKE, Haruki KONDO, Makoto NAKAE, Tooru TAKEUCHI, Masayuki TAMURA, Atsushi MURAI
  • Publication number: 20120073356
    Abstract: An air-fuel ratio sensor includes a solid electrolyte layer, a measuring electrode laminated on a first face of the solid electrolyte layer, a reference electrode laminated on a second face of the solid electrolyte layer which is different from the first face thereof, such that the reference electrode and the measuring electrode are opposed to each other with the solid electrolyte layer interposed therebetween, a porous diffusion resistance layer that permits gas to pass therethrough and covers the measuring electrode, and a catalyst layer including a catalyst metal and a base material on which the catalyst metal is supported. The catalyst layer permits gas to pass therethrough and covers the porous diffusion resistance layer. The catalyst metal is a platinum-palladium-rhodium alloy, and contains 2 to 9 mass % of rhodium when the overall amount of the catalyst layer is represented as 100 mass %.
    Type: Application
    Filed: April 15, 2010
    Publication date: March 29, 2012
    Inventors: Hiroki Nishijima, Takechi Hirabayashi, Haruki Kondo, Yasufumi Suzuki