Patents by Inventor Masao Yashimoto

Masao Yashimoto 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).

  • Path length control method for ring laser gyroscope
    Patent number: 4755057
    Abstract: The present invention provides for initializing the particular intensity peak selected to operate about, based upon the initial temperature of the gyroscope in order to maintain a selected integer number of wavelengths as the initial cavity path length from start up to start up. In addition, the present invention provides an optimum available movement of the mirrors due to changing the voltage over the available voltage swing for the anticipated range and direction of temperature changes from the start up temperature, over which the gyroscope is expected to operate.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: July 5, 1988
    Assignee: Litton Systems, Inc.
    Inventors: Robert D. Curby, Rodney W. Benoist, Masao Yashimoto
  • Pathlength controller for ring laser gyroscope
    Patent number: 4740083
    Abstract: The present invention provides for initializing the particular intensity peak selected to operate about, based upon the initial temperature of the gyroscope in order to maintain a selected integer number of wavelengths as the initial cavity path length from start up to start up. In addition, the present invention provides an optimum available movement of the mirrors due to changing the voltage over the available voltage swing for the anticipated range and direction of temperature changes from the start up temperature, over which the gyroscope is expected to operate.
    Type: Grant
    Filed: October 2, 1984
    Date of Patent: April 26, 1988
    Assignee: Litton Systems, Inc.
    Inventors: Robert D. Curby, Rodney W. Benoist, Masao Yashimoto