Patents by Inventor Takaharu MUROOKA

Takaharu MUROOKA 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).

  • Rotating electric machine, temperature detector thereof, and manufacturing method and protection method thereof
    Patent number: 11489413
    Abstract: A temperature sensor in a rotating electric machine is disposed or installed on a surface of a temperature detection object. The temperature detection object, i.e., an installation portion, has a thickness. The temperature sensor has an inner case housing a detector element. The inner case is made of resin. The inner case has a thickness. A temperature detecting device has an outer case housing the temperature sensor. The outer case is made of resin. A linear expansion coefficient of the outer case is, within a certain temperature range including a threshold temperature for a protection of the rotating electric machine, is smaller than an average of linear expansion coefficients of the installation portion and the inner case.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: November 1, 2022
    Assignee: DENSO CORPORATION
    Inventors: Takaharu Murooka, Masataka Yoshimura
  • ROTATING ELECTRIC MACHINE, TEMPERATURE DETECTOR THEREOF, AND MANUFACTURING METHOD AND PROTECTION METHOD THEREOF
    Publication number: 20200274422
    Abstract: A temperature sensor in a rotating electric machine is disposed or installed on a surface of a temperature detection object. The temperature detection object, i.e., an installation portion, has a thickness. The temperature sensor has an inner case housing a detector element. The inner case is made of resin. The inner case has a thickness. A temperature detecting device has an outer case housing the temperature sensor. The outer case is made of resin. A linear expansion coefficient of the outer case is, within a certain temperature range including a threshold temperature for a protection of the rotating electric machine, is smaller than an average of linear expansion coefficients of the installation portion and the inner case.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 27, 2020
    Applicant: DENSO CORPORATION
    Inventors: Takaharu MUROOKA, Masataka YOSHIMURA