05796824 is referenced by 90 patents and cites 17 patents.

A storage medium stores encrypted electronic data, a medium personal number which is unique for each storage medium and encrypted permission information. At least the medium personal number is written onto the storage medium in an un-rewritable form which a user computer cannot rewrite.

Title
Storage medium for preventing an irregular use by a third party
Application Number
31339
Publication Number
5796824
Application Date
February 20, 1996
Publication Date
August 18, 1998
Inventor
Makoto Yoshioka
Kawasaki
JP
Ryota Akiyama
Kawasaki
JP
Takayuki Hasebe
Kawasaki
JP
Agent
Nikaido Marmelstein Murray & Oram
Assignee
Fujitsu
JP
IPC
H04L 9/32
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