Patents by Inventor Eiki Kouroki

Eiki Kouroki 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 phone avoiding search of ineffective base stations
    Patent number: 6909892
    Abstract: When a mobile phone is out of an area covered by a communication currently in use, the fact is noticed to a user and, simultaneously therewith, a message urging the user to select another communication system is displayed. During a period in which this display is performed, it becomes possible to switch the communication system through a simple procedure.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: June 21, 2005
    Assignees: NEC Corporation, NTT DoCoMo, Inc.
    Inventors: Hirokazu Tuji, Eiki Kouroki, Kazuhiko Takeno, Naoki Naruse
  • Mobile phone
    Publication number: 20010044298
    Abstract: When a mobile phone is out of an area covered by a communication currently in use, the fact is noticed to a user and, simultaneously therewith, a message urging the user to select another communication system is displayed. During a period in which this display is performed, it becomes possible to switch the communication system through a simple procedure.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 22, 2001
    Applicant: NEC Corporation
    Inventors: Hirokazu Tuji, Eiki Kouroki, Kazuhiko Takeno, Naoki Naruse