Patents by Inventor Shuntaro NAKAYAMA

Shuntaro NAKAYAMA 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: 11945512
    Abstract: An electric vehicle includes a floor panel formed with a floor tunnel; a transmission; a transmission support member; an inverter attached to a case of the transmission; a battery unit disposed behind the transmission and on an outer side in a vehicle width direction of the floor tunnel; and a harness disposed such that an intermediate portion between a first end portion connected to the inverter and a second end portion connected to a front end portion of the battery unit 4 extends across the floor tunnel from inside to outside thereof. The battery unit has a substantially rectangular shape in a bottom view, and a corner on the floor tunnel side of a front end portion of the battery unit is cut out to form a free space between the front end portion of the battery unit and a portion of the floor tunnel behind the transmission support member.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: April 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kenji Katayama, Muneyuki Ohga, Ryuhei Sumita, Shuntaro Nakayama
  • Publication number: 20220306207
    Abstract: To simultaneously improve battery capacity and protect a battery during a lateral collision without causing a weight increase, a cost increase, and the like, an electric vehicle includes a battery system arranged below a floor panel and arranged between a tunnel side frame and a floor side frame; and an attachment bracket connecting the battery system to the tunnel side frame and the floor side frame.
    Type: Application
    Filed: February 14, 2022
    Publication date: September 29, 2022
    Applicant: Mazda Motor Corporation
    Inventors: Kenji KATAYAMA, Muneyuki OHGA, Ryuhei SUMITA, Shuntaro NAKAYAMA
  • Publication number: 20220306213
    Abstract: An electric vehicle includes a floor panel formed with a floor tunnel; a transmission; a transmission support member; an inverter attached to a case of the transmission; a battery unit disposed behind the transmission and on an outer side in a vehicle width direction of the floor tunnel; and a harness disposed such that an intermediate portion between a first end portion connected to the inverter and a second end portion connected to a front end portion of the battery unit 4 extends across the floor tunnel from inside to outside thereof. The battery unit has a substantially rectangular shape in a bottom view, and a corner on the floor tunnel side of a front end portion of the battery unit is cut out to form a free space between the front end portion of the battery unit and a portion of the floor tunnel behind the transmission support member.
    Type: Application
    Filed: February 2, 2022
    Publication date: September 29, 2022
    Applicant: Mazda Motor Corporation
    Inventors: Kenji KATAYAMA, Muneyuki OHGA, Ryuhei SUMITA, Shuntaro NAKAYAMA
  • Patent number: 11194279
    Abstract: A power supply includes a first control circuit configured to control an output voltage of the power supply, a second control circuit configured to control an output current of the power supply, a switching circuit configured to switch control of the power supply from the first control circuit to the second control circuit based on the output current of the power supply while the first control circuit controls the output voltage of the power supply, and a power supply control circuit configured to output status information indicating a failure of the power supply acquired based on the output voltage of the power supply while the second control circuit controls the output current of the power supply.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: December 7, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Ogino, Shuntaro Nakayama, Takuya Tanimura, Kentaroh Kajita
  • Publication number: 20200363762
    Abstract: A power supply includes a first control circuit configured to control an output voltage of the power supply, a second control circuit configured to control an output current of the power supply, a switching circuit configured to switch control of the power supply from the first control circuit to the second control circuit based on the output current of the power supply while the first control circuit controls the output voltage of the power supply, and a power supply control circuit configured to output status information indicating a failure of the power supply acquired based on the output voltage of the power supply while the second control circuit controls the output current of the power supply.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 19, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: TATSUYA OGINO, SHUNTARO NAKAYAMA, TAKUYA TANIMURA, KENTAROH KAJITA
  • Patent number: 10555373
    Abstract: A heater controller and heater control method is disclosed. The hater controller includes a detector, a determination circuit, a limiting circuit, a selection circuit, and a driving circuit. The detector detects a temperature of the heating object, which is heated by the heater. The determination circuit determines turn-on ratio for the heater for every control cycle of AC voltage, based on the surface temperature of the heating object and a target temperature of the heating object. The limiting circuit limits the turn-on ratio of current control cycle when the control method of previous control cycle is phase control. The selection circuit selects control pattern to control the heater, based on the turn-on ratio, and the driving circuit applies a heater driving signal to the heater.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 4, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shuntaro Nakayama, Keita Maejima, Ryota Kubokawa
  • Publication number: 20160044745
    Abstract: A heater controller and heater control method is disclosed. The hater controller includes a detector, a determination circuit, a limiting circuit, a selection circuit, and a driving circuit. The detector detects a temperature of the heating object, which is heated by the heater. The determination circuit determines turn-on ratio for the heater for every control cycle of AC voltage, based on the surface temperature of the heating object and a target temperature of the heating object. The limiting circuit limits the turn-on ratio of current control cycle when the control method of previous control cycle is phase control. The selection circuit selects control pattern to control the heater, based on the turn-on ratio, and the driving circuit applies a heater driving signal to the heater.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 11, 2016
    Inventors: Shuntaro NAKAYAMA, Keita MAEJIMA, Ryota KUBOKAWA