Patents by Inventor Hidetoshi Onaka

Hidetoshi Onaka 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, mobile terminal, subscriber information management apparatus, mobile network system, location area information registration method and call control method
    Patent number: 7349697
    Abstract: A mobile terminal can be loaded with a plurality of subscriber identity module cards at the same time, and register the condition to a mobile communication network. The mobile terminal comprises detects a loading of a recording medium (such as an IC card like the SIM card), and transmits, when the detecting means detects at least two recording media, first subscriber identity information (e.g. IMSI, TMSI, etc.) corresponding to a first recording medium and second subscriber identity information corresponding to a newly detected recording medium, to the subscriber information management apparatus such as a visitor location register (VLR). The subscriber information management apparatus registers location area information of the first subscriber identity information as location area information associated with the second subscriber identity information.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: March 25, 2008
    Assignee: NTT DoCoMo, Inc.
    Inventors: Hidetoshi Onaka, Shoichi Hirata
  • Mobile communication system, mobile terminal, subscriber information management apparatus, mobile network system, location area information registration method and call control method
    Publication number: 20020006808
    Abstract: A mobile terminal can be loaded with a plurality of subscriber identity module cards at the same time, and register the condition to a mobile communication network. The mobile terminal comprises detects a loading of a recording medium (such as an IC card like the SIM card), and transmits, when the detecting means detects at least two recording media, first subscriber identity information (e.g. IMSI, TMSI, etc.) corresponding to a first recording medium and second subscriber identity information corresponding to a newly detected recording medium, to the subscriber information management apparatus such as a visitor location register (VLR). The subscriber information management apparatus registers location area information of the first subscriber identity information as location area information associated with the second subscriber identity information.
    Type: Application
    Filed: July 12, 2001
    Publication date: January 17, 2002
    Inventors: Hidetoshi Onaka, Shoichi Hirata