Patents by Inventor Shinichi Kitoh

Shinichi Kitoh 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).

  • Apparatus and method for controlling data access using encrypted link position information
    Patent number: 7127580
    Abstract: An access restriction apparatus, an access restriction method, a computer readable program storage medium having a recorded access restriction program, and the access restriction program, all capable of making a terminal refer only to management information existing at a position designated by link position information. An access restriction apparatus for limiting the access of terminals desiring access to managed management information is provided with a supply section for supplying the terminals with partially or totally encrypted link position information indicating a linking destination of the management information, and an access management section for managing the access of the terminals to the management information based on the link position information decoded by the terminals.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: October 24, 2006
    Assignee: Sony Corporation
    Inventors: Masayuki Takeuchi, Shinichi Kitoh, Nobutoshi Furuya, Takeshi Yoshino
  • Access limit apparatus, access limit method, computer-readable program containing medium conataining access limit program, and access limit program
    Publication number: 20040059932
    Abstract: An access restriction apparatus, an access restriction method, a computer readable program storage medium having a recorded access restriction program, and the access restriction program, all capable of making a terminal refer only to management information existing at a position designated by link position information. An access restriction apparatus 1 for limiting the access of terminals desiring access to managed management information 19B is provided with supply means for supplying the terminals 23A, 23B and 23C with partially or totally encrypted link position information 39a indicating a linking destination of the management information, and access management means 14 for managing the access of the terminals 23A, 23B and 23C to the management information 19B on a basis of the link position information 39a decoded by the terminals 23A, 23B and 23C.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 25, 2004
    Inventors: Masayuki Takeuchi, Shinichi Kitoh, Nobutoshi Furuya, Takeshi Yoshino