Patents by Inventor Ryo Higashiura

Ryo Higashiura 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).

  • Vehicle air conditioner
    Patent number: 11932083
    Abstract: A vehicle air conditioner has a refrigeration cycle system including a compressor. The rotational frequency of the compressor is variably controlled, and the compressor is prevented from being operated within a resonating rotational frequency range of the compressor in which the vibration frequency of the compressor and the natural frequency of a steering device resonate with each other. When the vehicle performs automated driving, the compressor is also allowed to operate within the resonating rotational frequency range.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: March 19, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryo Higashiura, Takayuki Shimauchi, Hidekazu Hirabayashi
  • VEHICLE AIR CONDITIONER
    Publication number: 20230027333
    Abstract: A vehicle air conditioner has a refrigeration cycle system including a compressor. The rotational frequency of the compressor is variably controlled, and the compressor is prevented from being operated within a resonating rotational frequency range of the compressor in which the vibration frequency of the compressor and the natural frequency of a steering device resonate with each other. When the vehicle performs automated driving, the compressor is also allowed to operate within the resonating rotational frequency range.
    Type: Application
    Filed: July 22, 2022
    Publication date: January 26, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryo Higashiura, Takayuki Shimauchi, Hidekazu Hirabayashi