Patents by Inventor Kenzi Matsumoto

Kenzi Matsumoto 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).

  • Patent number: 7357313
    Abstract: A Smart card-based service providing system and method, in which a service application uses resources of a common application and which can easily cope with an addition of a service application into the Smart card and thereby efficiently utilize valuable resources of the Smart card, is provided. A management application specially designed for access control is installed in the Smart card to solely manage access management information. A management of or a decision on an access right is not performed by the service application or the common application but by the management application. When a new application is added to the Smart card, the service provider device receives a permission to update access management information beforehand from the card issuer device and, based on the permission, updates the access management information.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: April 15, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Hiroki Uchiyama, Katsuyuki Umezawa, Seiichi Susaki, Kenzi Matsumoto
  • Publication number: 20070057044
    Abstract: A Smart card-based service providing system and method, in which a service application uses resources of a common application and which can easily cope with an addition of a service application into the Smart card and thereby efficiently utilize valuable resources of the Smart card, is provided. A management application specially designed for access control is installed in the Smart card to solely manage access management information. A management of or a decision on an access right is not performed by the service application or the common application but by the management application. When a new application is added to the Smart card, the service provider device receives a permission to update access management information beforehand from the card issuer device and, based on the permission, updates the access management information.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 15, 2007
    Inventors: Hiroki Uchiyama, Katsuyuki Umezawa, Seiichi Susaki, Kenzi Matsumoto