Patents by Inventor Takeo Akizuki

Takeo Akizuki 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 based on SIP, and communication terminal
    Patent number: 7668305
    Abstract: A communication system based on a communication protocol such SIP includes a first communication terminal Bob and a second communication terminal Bill, wherein the second communication terminal Bill has a unit, when the first communication terminal Bob receives an incoming message from a source communication terminal Alice, transmitting a substitute response control message to the first communication terminal Bob, the first communication terminal Bob has an incoming message transferring unit, when receiving the substitute response control message, transferring the incoming message given from the source terminal Alice to the second communication terminal Bill and has a response message transmitting unit transmitting to the source communication terminal Alice a response message containing contact information for specifying the second communication terminal Bill, and a call is established between the source communication terminal Alice and the second communication terminal Bill.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: February 23, 2010
    Assignee: Fujitsu Limited
    Inventors: Takeo Akizuki, Junichi Morimoto, Osamu Shimada, Kiyoko Yamamoto
  • Communication system based on SIP, and communication terminal
    Publication number: 20060013371
    Abstract: A communication system based on a communication protocol such SIP includes a first communication terminal Bob and a second communication terminal Bill, wherein the second communication terminal Bill has a unit, when the first communication terminal Bob receives an incoming message from a source communication terminal Alice, transmitting a substitute response control message to the first communication terminal Bob, the first communication terminal Bob has an incoming message transferring unit, when receiving the substitute response control message, transferring the incoming message given from the source terminal Alice to the second communication terminal Bill and has a response message transmitting unit transmitting to the source communication terminal Alice a response message containing contact information for specifying the second communication terminal Bill, and a call is established between the source communication terminal Alice and the second communication terminal Bill.
    Type: Application
    Filed: January 27, 2005
    Publication date: January 19, 2006
    Inventors: Takeo Akizuki, Junichi Morimoto, Osamu Shimada, Kiyoko Yamamoto