Patents by Inventor Hajime Kushima

Hajime Kushima 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: 11505079
    Abstract: An ECU performs a process including: when a vehicle establishes a Ready-On state, selecting a CD mode; when discharging power is uncompleted and a scheduled time to return the vehicle is a time within a discharging period, setting a second target SOC as a mode switching value; and when the vehicle's power storage device has an SOC reaching the mode switching value and a surcharge imposed on a rental fee is unaccepted, switching the current control mode from the CD mode to a CS mode.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: November 22, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tamaki Ozawa, Masaaki Kiyohara, Toshiyuki Nagase, Hajime Kushima, Yuki Shimizu, Akio Uotani
  • Patent number: 11228236
    Abstract: There is provided a driving system configured to control an input current of a boost converter when temperature of a reactor becomes higher than a temperature reference value that is lower than a heatproof temperature of the reactor, compared with the input current when the temperature of the reactor is equal to or lower than the temperature reference value. A first temperature is set to the temperature reference value when ambient temperature is equal to or higher than a predetermined temperature. A second temperature that is higher than the first temperature is set to the temperature reference value when the ambient temperature is lower than the predetermined temperature.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: January 18, 2022
    Assignee: DENSO CORPORATION
    Inventor: Hajime Kushima
  • Publication number: 20200373840
    Abstract: There is provided a driving system configured to control an input current of a boost converter when temperature of a reactor becomes higher than a temperature reference value that is lower than a heatproof temperature of the reactor, compared with the input current when the temperature of the reactor is equal to or lower than the temperature reference value. A first temperature is set to the temperature reference value when ambient temperature is equal to or higher than a predetermined temperature. A second temperature that is higher than the first temperature is set to the temperature reference value when the ambient temperature is lower than the predetermined temperature.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 26, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hajime Kushima
  • Publication number: 20200207235
    Abstract: An ECU performs a process including: when a vehicle establishes a Ready-On state, selecting a CD mode; when discharging power is uncompleted and a scheduled time to return the vehicle is a time within a discharging period, setting a second target SOC as a mode switching value; and when the vehicle's power storage device has an SOC reaching the mode switching value and a surcharge imposed on a rental fee is unaccepted, switching the current control mode from the CD mode to a CS mode.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 2, 2020
    Inventors: Tamaki Ozawa, Masaaki Kiyohara, Toshiyuki Nagase, Hajime Kushima, Yuki Shimizu, Akio Uotani
  • Patent number: 9538674
    Abstract: There is provided an electrical device's casing capable of reducing vibration generated by the electrical device while the device is operating. A converter case (10) encasing a reactor which generates vibration while operating includes: a plate-shaped base (12) having a front surface and a rear surface, the reactor being to be mounted on the front surface; a reactor case (30) erected from the front surface of the base (12) and surrounding an outer periphery of the reactor; a reinforcing portion (40) provided outside the reactor case (30) and configured to increase stiffness of the base (12); and a rib (50) coupling the reactor case (30) and the reinforcing portion (40) to each other.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: January 3, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hajime Kushima, Hiroaki Yuasa
  • Publication number: 20140060918
    Abstract: There is provided an electrical device's casing capable of reducing vibration generated by the electrical device while the device is operating. A converter case (10) encasing a reactor which generates vibration while operating includes: a plate-shaped base (12) having a front surface and a rear surface, the reactor being to be mounted on the front surface; a reactor case (30) erected from the front surface of the base (12) and surrounding an outer periphery of the reactor; a reinforcing portion (40) provided outside the reactor case (30) and configured to increase stiffness of the base (12); and a rib (50) coupling the reactor case (30) and the reinforcing portion (40) to each other.
    Type: Application
    Filed: March 17, 2011
    Publication date: March 6, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hajime Kushima, Hiroaki Yuasa