Patents by Inventor Kenichi Yasuma

Kenichi Yasuma 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).

  • Wireless communication system, handover suppression apparatus, station, communication control method and computer-readable medium storing communication control program
    Patent number: 7881718
    Abstract: When a station is connected via a connector to an AC adapter, a controller may detect the event of connection between the station and the adapter and drive a suppression signal transmitter to send a suppression signal to suppress a handover by the station. The station may include a communication controller to fix, upon receipt of the suppression signal from the adapter, a wireless access point to which the station belongs. The station may enter a handover suppressed state in which the station does not conduct a handover to belong to another wireless access point so long as the station is connected to the adapter and is receiving the suppression signal. This may suppress the excessive handover and secure stable communication quality.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: February 1, 2011
    Assignee: NEC Infrontia Corporation
    Inventors: Hideki Kurokawa, Kenichi Yasuma, Hatsuho Murata
  • Wireless communication system, handover suppression apparatus, station, communication control method and computer-readable medium storing communication control program
    Publication number: 20080014945
    Abstract: When a station is connected via a connector to an AC adapter, a controller may detect the event of connection between the station and the adapter and drive a suppression signal transmitter to send a suppression signal to suppress a handover by the station. The station may include a communication controller to fix, upon receipt of the suppression signal from the adapter, a wireless access point to which the station belongs. The station may enter a handover suppressed state in which the station does not conduct a handover to belong to another wireless access point so long as the station is connected to the adapter and is receiving the suppression signal. This may suppress the excessive handover and secure stable communication quality.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 17, 2008
    Applicant: NEC CORPORATION
    Inventors: Hideki Kurokawa, Kenichi Yasuma, Hatsuho Murata
  • Status notification system for a voice communications telephone, voice communications telephone, status management apparatus, and notification method therefor
    Publication number: 20070217591
    Abstract: A status notification system for notifying a status of a voice communications telephone, the system includes a plurality of voice communications telephones registered to the same group, a status management apparatus managing a status of the plurality of voice communications telephones, and a network connecting the plurality of voice communications telephones to the status management apparatus. The plurality of voice communications telephones includes a status notification button notifying a self-status of one of the plurality of voice communications telephones to the status management apparatus, and the self-status is notified to the status management apparatus through the network by operating the status notification button.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 20, 2007
    Inventor: Kenichi Yasuma