Patents by Inventor Yousuke Mizutani

Yousuke Mizutani 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).

  • Switching system connecting a radio communication terminal via a LAN line to a public switched network or a leased line
    Patent number: 7321767
    Abstract: A telephone switching system includes a position information management database and a call conversion controller. On receiving number conversion information from an adapter having a radio communication terminal connected, the database registers an identification number assigned to the adapter and terminal information particular to the communication terminal in one-to-one correspondence, thereby managing the position of the communication terminal. When a call is originated on a telephone terminal interconnected thereto or a communication terminal having a voice communication function interconnected to its LAN system, the call conversion controller searches the database on the basis of a destination number and substitutes, if terminal information corresponding to the destination number is found out in the database, the identification number of the adapter corresponding to the terminal information for the destination number to process call switching.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: January 22, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yousuke Mizutani, Yasubumi Chimura, Yumiko Araki
  • Switching system connecting a radio communication terminal via a LAN line to a public switched network or a leased line
    Publication number: 20050143063
    Abstract: A telephone switching system includes a position information management database and a call conversion controller. On receiving number conversion information from an adapter having a radio communication terminal connected, the database registers an identification number assigned to the adapter and terminal information particular to the communication terminal in one-to-one correspondence, thereby managing the position of the communication terminal. When a call is originated on a telephone terminal interconnected thereto or a communication terminal having a voice communication function interconnected to its LAN system, the call conversion controller searches the database on the basis of a destination number and substitutes, if terminal information corresponding to the destination number is found out in the database, the identification number of the adapter corresponding to the terminal information for the destination number to process call switching.
    Type: Application
    Filed: December 22, 2004
    Publication date: June 30, 2005
    Applicant: Oki Electric Industry Co., Ltd.
    Inventors: Yousuke Mizutani, Yasubumi Chimura, Yumiko Araki