Patents by Inventor Shinya Nagashima

Shinya Nagashima 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).

  • Optical wavelength meter with an up-down counter which measures the amounts of the overshoot and the back-shift of the moving mirror
    Patent number: 5486918
    Abstract: The purpose of the present invention is to provide a highly accurate optical wavelength meter in which the accurate starting and stop points of the measurement are detected. In accordance with the present invention, a detector which detects the back-shift of the moving mirror due to elastic force of the belt and an up-down counter which measures the amounts of the overshoot and the back-shift of the moving mirror so as to cancel the overshoot and the back-shift are provided, by which the accurate starting and stop points of the measurement can be detected.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: January 23, 1996
    Assignee: Ando Electric Co., Ltd.
    Inventor: Shinya Nagashima