Patents by Inventor Nobuyuki Kitada

Nobuyuki Kitada 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).

  • Telephone subscriber call signal control device and subscriber circuit terminating device
    Publication number: 20010006549
    Abstract: Disclosed is a telephone subscriber call signal control device for calling a telephone set connected to a subscriber circuit by means of a ringing signal when an incoming call is outputted from a subscriber circuit terminating device.
    Type: Application
    Filed: December 27, 2000
    Publication date: July 5, 2001
    Applicant: NEC Corporation
    Inventors: Kazuhiko Harasaki, Nobuyuki Kitada