Patents by Inventor Asuka Yamada

Asuka Yamada 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: 7460774
    Abstract: A stepper motor is controlled by a driver having a constant and maximum frequency input in order to correct for camera shake. The need for variable frequency devices is eliminated, thereby reducing the cost and complexity of the system.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: December 2, 2008
    Assignees: Optoelectronics Co., Ltd., Opticon, Inc.
    Inventors: Takayuki Fujisaki, Asuka Yamada
  • Publication number: 20070297779
    Abstract: A stepper motor is controlled by a driver having a constant and maximum frequency input in order to correct for camera shake. The need for variable frequency devices is eliminated, thereby reducing the cost and complexity of the system.
    Type: Application
    Filed: June 21, 2006
    Publication date: December 27, 2007
    Inventors: Takayuki Fujisaki, Asuka Yamada