Patents by Inventor Shuuichi Sekiguchi

Shuuichi Sekiguchi 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 communications equipment which detects and notifies when it is moved into or out of a service area
    Patent number: 5450613
    Abstract: A mobile communications equipment which communicates with another equipment through a base station, and in which the state change of the mobile communications equipment based on the movement thereof, such as the movement from outside a service area into the service area, is detected and is notified to the user of the mobile communications equipment.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: September 12, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Yasuaki Takahara, Shigeyuki Sudo, Shuuichi Sekiguchi