Patents by Inventor Shuji Igawa

Shuji Igawa 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).

  • File management system, information processing apparatus, authentication system, and file access authority setting system
    Publication number: 20070106668
    Abstract: A file management system according to the present invention includes a server apparatus and a client apparatus. The server apparatus includes a file server, a file information database, an authority database, and a server-side communication section for sending a file and access authority information to the client apparatus. The client apparatus includes a client-side communication section, an application program for making a user utilize the file received by the client-side communication section, and an application controlling section for restricting a function of an application capable of being utilized by the user based on the access authority information received by the client-side communication section when the user utilizes the file received by the client-side communication section.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 10, 2007
    Applicant: Chial and Associates C. Lrd.
    Inventors: Atsushi Maegawa, Shuji Igawa, Keiji Ogasawara