Patents by Inventor Tomiharu Hamguchi

Tomiharu Hamguchi 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).

  • Communication system and apparatus for providing supplementary service in femto cell
    Patent number: 9019988
    Abstract: When a femto cell base station used for a communication system provided with a function of providing a predetermined supplementary service receives first information indicating supplementary service control from a radio terminal, the femto cell base station converts the received information to a SIP (Session Initiation Protocol) message including the first information and transmits the SIP message to a higher apparatus in the communication system.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 28, 2015
    Assignee: NEC Corporation
    Inventors: Osamu Kurokawa, Kazuki Eguchi, Naoki Yoshida, Shunsuke Yokouchi, Toru Shiiba, Tomiharu Hamguchi, Yasuyuki Ueda, Yasuhiro Watanabe, Hiroaki Akiyama, Takayuki Kido
  • COMMUNICATION SYSTEM AND APPARATUS FOR PROVIDING SUPPLEMENTARY SERVICE IN FEMTO CELL
    Publication number: 20120270529
    Abstract: When a femto cell base station used for a communication system provided with a function of providing a predetermined supplementary service receives first information indicating supplementary service control from a radio terminal, the femto cell base station converts the received information to a SIP (Session Initiation Protocol) message including the first information and transmits the SIP message to a higher apparatus in the communication system.
    Type: Application
    Filed: June 30, 2010
    Publication date: October 25, 2012
    Applicant: NEC CORPORATION
    Inventors: Osamu Kurokawa, Kazuki Eguchi, Naoki Yoshida, Shunsuke Yokouchi, Toru Shiiba, Tomiharu Hamguchi, Yasuyuki Ueda, Yasuhiro Watanabe, Hiroaki Akiyama, Takayuki Kido