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:
Jan. 29, 2008
Filed:
Mar. 08, 2001
Applicants:
Seigo Kotani, Kawasaki, JP;
Takayuki Hasebe, Kawasaki, JP;
Hideyuki Hirano, Kawasaki, JP;
Inventors:
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); G06F 17/30 (2006.01); G06F 7/04 (2006.01); G06F 7/58 (2006.01); H04L 9/32 (2006.01); G06K 9/00 (2006.01); H03M 1/68 (2006.01); H04K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An information management method restoring electronic data using backup information upon the loss of electronic data stored on a recording medium. Information stored in a predetermined area of the recording medium having medium-specific information is encrypted using medium-specific information or a key generated therefrom and is derived outside the predetermined area.