Patents by Inventor Noritoshi Tuji

Noritoshi Tuji 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).

  • Electric power control apparatus with first and second fixed time intervals
    Patent number: 4719555
    Abstract: When an abnormality is detected during driving of an inverter, the output of the inverter is interrupted for a period of several milliseconds and then operated again. At this time, if no abnormality is detected, driving is continued, while if an abnormality is again detected, driving is stopped.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: January 12, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Motonobu Hattori, Noritoshi Tuji, Hideyuki Shimonabe