Patents by Inventor Shusuke KOJIMA

Shusuke KOJIMA 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).

  • Publication number: 20230408840
    Abstract: Provided are an optical element drive device, a camera module, and a camera-equipped device that are small and low-profile but also improve drive performance and noise reduction performance. An optical element drive device that comprises a fixed part, a mobile part that is separated from the fixed part in the optical axis direction, a support part that supports the mobile part on the fixed part, a drive unit that moves the mobile part relative to the fixed part within an optical axis orthogonal plane that is orthogonal to the optical axis direction, and a tension coil spring that connects the fixed part and the mobile part and urges the fixed part and the mobile part toward each other. A damper material is provided to the tension coil spring.
    Type: Application
    Filed: September 28, 2021
    Publication date: December 21, 2023
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventors: Tomohiko OSAKA, Masayoshi SUGAWARA, Masahiro ISHIKAWA, Shusuke KOJIMA
  • Publication number: 20230408890
    Abstract: An optical element driving device includes: a fixed part; a movable part disposed apart from the fixed part; a support part which supports the movable part with respect to the fixed part; and a driving unit which has an ultrasonic motor that converts a vibration motion into a linear motion and a power transmission part that transmits the driving force of the ultrasonic motor to the movable part, and moves the movable Dart with respect to the fixed Dart, wherein the power transmission part has a plate which is in contact with a resonance part of the ultrasonic motor, and a damper material is disposed on a second surface side opposite to a first surface which is in contact with the resonance part in the plate.
    Type: Application
    Filed: September 28, 2021
    Publication date: December 21, 2023
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventors: Tomohiko OSAKA, Masayoshi SUGAWARA, Masahiro ISHIKAWA, Shusuke KOJIMA