Patents by Inventor Takuro KIKUCHI

Takuro KIKUCHI 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: 10249851
    Abstract: A stacked battery includes a first current collecting case, a second current collecting case, and a third current collecting case, a first electrode body and a second electrode body. Each of The first current collecting case and the second current collecting case includes a positive electrode wall portion. Each of the second current collecting case and the third current collecting case includes a second negative electrode wall portion.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 2, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro Kikuchi
  • Patent number: 10170807
    Abstract: A secondary battery cooling system includes a temperature sensor for detecting a temperature of a battery, an electrically operated cooling fan, and a control unit. The control unit determines whether or not cooling of the battery is necessary based on the battery temperature detected by the temperature sensor and a heat value of the battery estimated when an ignition switch is turned off, and, if the battery temperature is lower than a predetermined temperature and the estimated battery heat value exceeds a predetermined value in the determination, extends a length of time from the determination to a start of driving of the electrically operated cooling fan compared to when the heat value does not exceed the predetermined value, and cools the battery while the ignition switch of the vehicle is turned off. The battery can be thus cooled efficiently while charge and discharge is suspended.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: January 1, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro Kikuchi
  • Publication number: 20180375161
    Abstract: (a1) A positive electrode active material containing at least one of nickel hydroxide and nickel oxyhydroxide is prepared. (a2) A positive electrode paste is prepared by mixing at least the positive electrode active material, a binder, and a solvent. (a3) A positive electrode for an alkaline secondary battery is manufactured by holding the positive electrode paste on a substrate and drying the positive electrode paste. By using an ion trapping agent in at least one of the positive electrode active material and the positive electrode paste, nitrogen compound ions are reduced.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 27, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motoyoshi OKUMURA, Masato HOZUMI, Takuro KIKUCHI
  • Publication number: 20180083234
    Abstract: In a stacked battery according to one aspect of the present disclosure, a first current collecting case includes: a first facing portion facing the electrode body in the stacking direction of the electrode body; and positive-electrode wall portions that extend from edge portions of the first facing portion so as to cover first side portions of the electrode body, and whose inner surfaces are electrically connected to edge sides of positive-electrode protruding portions. In the stacking direction of the electrode body, a second current collecting case includes: a second facing portion facing the electrode body in the stacking direction of the electrode body; and negative-electrode wall portions that extend from edge portions of the second facing portion so as to cover second side portions of the electrode body, and whose inner surfaces are electrically connected to edge sides of negative-electrode protruding portions.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 22, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro KIKUCHI
  • Publication number: 20180083235
    Abstract: A stacked battery includes a first current collecting case, a second current collecting case, and a third current collecting case, a first electrode body and a second electrode body. Each of The first current collecting case and the second current collecting case includes a positive electrode wall portion. Each of the second current collecting case and the third current collecting case includes a second negative electrode wall portion.
    Type: Application
    Filed: September 15, 2017
    Publication date: March 22, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro KIKUCHI
  • Publication number: 20180053962
    Abstract: Each of plurality of unit cells includes a current collecting plate including a first main surface and a second main surface that are arranged in a stacking direction of the plurality of unit cells. The unit battery includes a separator impregnated with an electrolytic solution, the unit battery being disposed on the first main surface, a seal member provided on the first main surface, the seal member surrounding a periphery of the unit battery, and the seal member being in tight contact with the current collecting plates adjacent to the seal member in the stacking direction by a pressing force from the fastening tool.
    Type: Application
    Filed: August 14, 2017
    Publication date: February 22, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motoyoshi OKUMURA, Takuro KIKUCHI
  • Patent number: 9862246
    Abstract: An air conditioning control device of a vehicle in which an air conditioner for adjusting a temperature in a cabin is mounted is provided. The air conditioning control device includes a setting portion, a detector, and an electronic control unit. The setting portion is configured to set an execution schedule of pre-air conditioning that the air conditioner is actuated before a user gets in a vehicle. The detector is configured to detect boarding on the vehicle. The electronic control unit is configured to actuate the air conditioner in accordance with the set execution schedule of the pre-air conditioning, and is also configured to notify the user about execution of the pre-air conditioning when the boarding of the user on the vehicle is detected after the air conditioner is actuated in accordance with the set execution schedule of the pre-air conditioning.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: January 9, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuro Kikuchi, Yoshihiro Nomura
  • Patent number: 9634498
    Abstract: An electrical storage system includes electrical storage elements connected in series with each other and being charged or discharged; discharge circuits respectively connected in parallel with the electrical storage elements and discharging the corresponding electrical storage elements; and a controller controlling operations of the discharge circuits. The controller calculates a first SOC difference using a full charge capacity of each electrical storage element. The first SOC difference is a difference in SOC between the electrical storage elements and arises due to a difference in full charge capacity between the electrical storage elements. The controller calculates a second SOC difference that is a difference in SOC between the electrical storage elements at the moment the second SOC difference is calculated.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: April 25, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro Kikuchi
  • Publication number: 20160276719
    Abstract: A secondary battery cooling system includes a temperature sensor for detecting a temperature of a battery, an electrically operated cooling fan, and a control unit. The control unit determines whether or not cooling of the battery is necessary based on the battery temperature detected by the temperature sensor and a heat value of the battery estimated when an ignition switch is turned off, and, if the battery temperature is lower than a predetermined temperature and the estimated battery heat value exceeds a predetermined value in the determination, extends a length of time from the determination to a start of driving of the electrically operated cooling fan compared to when the heat value does not exceed the predetermined value, and cools the battery while the ignition switch of the vehicle is turned off. The battery can be thus cooled efficiently while charge and discharge is suspended.
    Type: Application
    Filed: February 8, 2016
    Publication date: September 22, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro KIKUCHI
  • Patent number: 9365129
    Abstract: A motor generates a kinetic energy for use in running of a vehicle. An electric storage apparatus is charged and discharged and outputs a driving electric power for the motor through the discharge. A display displays a cruising distance over which the vehicle can be run with the motor. A controller calculates the cruising distance based on a full charge capacity of the electric storage apparatus and displays the cruising distance on the display. When the full charge capacity at a present time is smaller than the full charge capacity at a past time and the electric storage apparatus is not discharged, or when the full charge capacity at the present time is larger than the full charge capacity at the past time and the electric storage apparatus is not charged, the controller displays the cruising distance based on the full charge capacity at the past time on the display.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: June 14, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuro Kikuchi, Koji Aridome, Junta Izumi
  • Publication number: 20150137763
    Abstract: An electrical storage system includes electrical storage elements connected in series with each other and being charged or discharged; discharge circuits respectively connected in parallel with the electrical storage elements and discharging the corresponding electrical storage elements; and a controller controlling operations of the discharge circuits. The controller calculates a first SOC difference using a full charge capacity of each electrical storage element. The first SOC difference is a difference in SOC between the electrical storage elements and arises due to a difference in full charge capacity between the electrical storage elements. The controller calculates a second SOC difference that is a difference in SOC between the electrical storage elements at the moment the second SOC difference is calculated.
    Type: Application
    Filed: August 6, 2013
    Publication date: May 21, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro Kikuchi
  • Publication number: 20150066344
    Abstract: A motor generates a kinetic energy for use in running of a vehicle. An electric storage apparatus is charged and discharged and outputs a driving electric power for the motor through the discharge. A display displays a cruising distance over which the vehicle can be run with the motor. A controller calculates the cruising distance based on a full charge capacity of the electric storage apparatus and displays the cruising distance on the display. When the full charge capacity at a present time is smaller than the full charge capacity at a past time and the electric storage apparatus is not discharged, or when the full charge capacity at the present time is larger than the full charge capacity at the past time and the electric storage apparatus is not charged, the controller displays the cruising distance based on the full charge capacity at the past time on the display.
    Type: Application
    Filed: April 20, 2012
    Publication date: March 5, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuro Kikuchi, Koji Aridome, Junta Izumi
  • Publication number: 20150053370
    Abstract: An air conditioning control device of a vehicle in which an air conditioner for adjusting a temperature in a cabin is mounted is provided. The air conditioning control device includes a setting portion, a detector, and an electronic control unit. The setting portion is configured to set an execution schedule of pre-air conditioning that the air conditioner is actuated before a user gets in a vehicle. The detector is configured to detect boarding on the vehicle. The electronic control unit is configured to actuate the air conditioner in accordance with the set execution schedule of the pre-air conditioning, and is also configured to notify the user about execution of the pre-air conditioning when the boarding of the user on the vehicle is detected after the air conditioner is actuated in accordance with the set execution schedule of the pre-air conditioning.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 26, 2015
    Inventors: Takuro KIKUCHI, Yoshihiro NOMURA