The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2006
Filed:
Feb. 14, 2002
Shinji Itoh, Yokohama, JP;
Kunihiko Miyazaki, Yokohama, JP;
Isao Echizen, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A network system capable of preventing the leakage of a confidential file by an inadvertent act of a transmitting party and capable of meeting the requirement for an arbitrary file format is disclosed. A label indicating a security level ('confidential' or 'unclassified') is attached to the file in a client terminal, which transmits the labeled file outside. A transmission management program on a gateway server checks the label of the file, and in the case where the security level is “unclassified”, transmits the file to an external network. Also, a label management program manages the labeled file in the client terminal.