Patents by Inventor Yuhiko Fujiwara

Yuhiko Fujiwara 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).

  • Content playing system for reliably determining an authentication of a playing terminal
    Patent number: 7908666
    Abstract: When a user wishes to play purchased content data by a playing terminal, a registration database server authenticates a user ID. Furthermore, when the playing terminal requests a content server to establish communication, the content server authenticates the playing terminal to thereby establish communication only with the playing terminal of which the user ID authentication and terminal authentication are correct. Consequently, the content data is prevented from being copied to another playing terminal which is owned by a third party, and thus the copyright of the content data can be protected.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: March 15, 2011
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Koichi Chida, Kei Kato, Yuhiko Fujiwara
  • Content playing system for reliably determining an authentication of a playing terminal
    Publication number: 20070136824
    Abstract: When a user wishes to play purchased content data by a playing terminal, a registration database server authenticates a user ID. Furthermore, when the playing terminal requests a content server to establish communication, the content server authenticates the playing terminal to thereby establish communication only with the playing terminal of which the user ID authentication and terminal authentication are correct. Consequently, the content data is prevented from being copied to another playing terminal which is owned by a third party, and thus the copyright of the content data can be protected.
    Type: Application
    Filed: November 29, 2006
    Publication date: June 14, 2007
    Applicant: Oki Electric Industry Co., Ltd.
    Inventors: Koichi Chida, Kei Kato, Yuhiko Fujiwara