Patents by Inventor Osamu Mitarai

Osamu Mitarai 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).

  • System for management of location information for mobile terminal in mobile switching network
    Patent number: 6678522
    Abstract: A method of management of location information for a mobile terminal in a mobile switching network (10) having a subscriber accommodating center (12) for accommodating a mobile terminal (15) through a base station (13) and a service control point (11) located at a level higher than the subscriber accommodating center and managing the current position of all mobile terminals. Here, the location information for a mobile terminal in the service control point is fixed in accordance with a request from a subscriber of the mobile terminal, and a subscriber accommodating center having the mobile terminal under it stops the registration of the location information of the mobile terminal for the service control point.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: January 13, 2004
    Assignee: Fujitsu Limited
    Inventors: Yohji Fukuzawa, Osamu Mitarai, Hiroshi Ooiwane
  • System for management of location information for mobile terminal in mobile switching network
    Publication number: 20010051522
    Abstract: A method of management of location information for a mobile terminal in a mobile switching network (10) having a subscriber accommodating center (12) for accommodating a mobile terminal (15) through a base station (13) and a service control point (11) located at a level higher than the subscriber accommodating center and managing the current position of all mobile terminals. Here, the location information for a mobile terminal in the service control point is fixed in accordance with a request from a subscriber of the mobile terminal, and a subscriber accommodating center having the mobile terminal under it stops the registration of the location information of the mobile terminal for the service control point.
    Type: Application
    Filed: July 10, 2001
    Publication date: December 13, 2001
    Inventors: Yohji Fukuzawa, Osamu Mitarai, Hiroshi Ooiwane