Patents by Inventor Hideo Oozeki

Hideo Oozeki 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).

  • Memory card
    Patent number: 7284132
    Abstract: The memory card with a simple configuration is provided with more reliable security. When the memory card receives the access request to the memory from the external connecting device, the access unit accesses the memory based on the access request. At this time, the switch composing the memory card indicates the propriety of the access right to the memory, and the access limitation unit limits that the access unit accesses the memory.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: October 16, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara
  • IC card reader/writer, identification method and program
    Patent number: 7011250
    Abstract: This invention provides a reader/writer, ID method and program comprising a response-detection unit of detecting normal responses and collisions from IC cards in response to a request; and a response-invalidation unit of sending a response-invalidation command, which is a command not to respond to requests in the future, to IC cards that sent normal responses when the response-detection unit received normal responses from IC cards even though collisions were detected.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: March 14, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara
  • Contactless IC card, responding method, and program therefor
    Patent number: 6923380
    Abstract: The contactless IC card, the responding method, and the program that control the collision of response to the minimum, wherein the response judgment unit judges whether there is an initial response of the other contactless IC card at a specific time, and the response slot changing unit change the specific time based on the judgment result of the response judgment unit.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: August 2, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara
  • Contactless IC card, responding method, and program therefor
    Publication number: 20040182926
    Abstract: The contactless IC card, the responding method, and the program that control the collision of response to the minimum, wherein the response judgment unit judges whether there is an initial response of the other contactless IC card at a specific time, and the response slot changing unit change the specific time based on the judgment result of the response judgment unit.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 23, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara
  • Contactless IC card, responding method, and program therefor
    Patent number: 6749117
    Abstract: The contactless IC card, the responding method, and the program that control the collision of response to the minimum, wherein the response judgment unit judges whether there is an initial response of the other contactless IC card at a specific time, and the response slot changing unit change the specific time based on the judgment result of the response judgment unit.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: June 15, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara
  • Memory card
    Publication number: 20030137887
    Abstract: The memory card with a simple configuration is provided with more reliable security. When the memory card receives the access request to the memory from the external connecting device, the access unit accesses the memory based on the access request. At this time, the switch composing the memory card indicates the propriety of the access right to the memory, and the access limitation unit limits that the access unit accesses the memory.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 24, 2003
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara
  • IC card reader/writer, identification method and program
    Publication number: 20030116626
    Abstract: This invention provides a reader/writer, ID method and program comprising a response-detection unit of detecting normal responses and collisions from IC cards in response to a request; and a response-invalidation unit of sending a response-invalidation command, which is a command not to respond to requests in the future, to IC cards that sent normal responses when the response-detection unit received normal responses from IC cards even though collisions were detected.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 26, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara
  • Contactless IC card, responding method, and program therefor
    Publication number: 20030094491
    Abstract: The contactless IC card, the responding method, and the program that control the collision of response to the minimum, wherein the response judgment unit judges whether there is an initial response of the other contactless IC card at a specific time, and the response slot changing unit change the specific time based on the judgment result of the response judgment unit.
    Type: Application
    Filed: November 20, 2002
    Publication date: May 22, 2003
    Inventors: Futoshi Nakabe, Tadakatsu Masaki, Shinji Kawano, Hideo Oozeki, Hiromi Ebara