Patents by Inventor Jiro Itano

Jiro Itano 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).

  • Mobile communication system
    Patent number: 4856048
    Abstract: A mobile communication system comprises at least one mobile switching center for accommodating through respective networks a plurality of radio base stations each having an independent radio zone area, the mobile switching center being connected to a telephone through a wire speech path, a mobile station connectable to each of the radio base stations through a radio speech channel; and a multi-connecting device contained in the mobile switching center and having a network between the switching center and an old base station left by the mobile station during communication, a network between the mobile switching center and a new base station entered by the mobile station, and a wire speech path between the mobile switching center and the telephone.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: August 8, 1989
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Koji Yamamoto, Akihisa Nakajima, Hiroshi Sawada, Noriteru Shinagawa, Jiro Itano