Patents by Inventor Yu YONWZAWA

Yu YONWZAWA 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).

  • CAPACITOR LIFE DIAGNOSIS DEVICE, CAPACITOR LIFE DIAGNOSIS METHOD, AND PROGRAM
    Publication number: 20160356837
    Abstract: A capacitor life diagnosis device includes: a first fluctuation detecting unit configured to detect a maximum value of fluctuation in output voltage of a first capacitor every fixed time; and an output unit configured to predict a residual life of the first capacitor on the basis of temporal transition of the maximum value of fluctuation in the output voltage detected by the first fluctuation detecting unit, and output a signal indicating the residual life of the first capacitor.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 8, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi NAKAO, Yu YONWZAWA, Takahiko SUGAWARA, Yoshiyasu NAKASHIMA