Patents by Inventor Mitsutoshi Aizawa

Mitsutoshi Aizawa 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).

  • Information retrieval method and relay center
    Patent number: 7209756
    Abstract: Base station BS adds a base station ID for specifying itself to a signal transmitted from mobile station MS. Data distribution management unit GWS3 of gateway server GWS extracts the base station ID added to a GET request and reads out an area name corresponding to the base station ID from area name conversion table TBL. Data distribution management unit GWS3, using the area name as a search key, searches location-related information database GWS4 for location-related information corresponding to a present location of mobile station MS and transmits the information to mobile station MS.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: April 24, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventors: Toshiyasu Yabe, Mitsutoshi Aizawa, Nobuyuki Ikeda, Takashi Koganemaru
  • Information retrieval method and relay center
    Publication number: 20030013458
    Abstract: Base station BS adds a base station ID for specifying itself to a signal transmitted from mobile station MS. Data distribution management unit GWS3 of gateway server GWS extracts the base station ID added to a GET request and reads out an area name corresponding to the base station ID from area name conversion table TBL. Data distribution management unit GWS3, using the area name as a search key, searches location-related information database GWS4 for location-related information corresponding to a present location of mobile station MS and transmits the information to mobile station MS.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 16, 2003
    Inventors: Toshiyasu Yabe, Mitsutoshi Aizawa, Nobuyuki Ikeda, Takashi Koganemaru