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:
Apr. 09, 2013
Filed:
Jun. 03, 2010
Daisuke Tomii, Kawasaki, JP;
Shinobu Sasaki, Kawasaki, JP;
Koujiro Hashimoto, Kawasaki, JP;
Noriyuki Suzuki, Kawasaki, JP;
Daisuke Tomii, Kawasaki, JP;
Shinobu Sasaki, Kawasaki, JP;
Koujiro Hashimoto, Kawasaki, JP;
Noriyuki Suzuki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A key data recording device includes a key data recording medium section which stores key data of the encrypted data; and a reading/writing section which reads and writes the key data from and into the key data recording medium section, which sections are contained in a cartridge casing accommodatable in a library unit. When the cartridge casing is irregularly ejected from the library unit, the key data recorded in the key data recording medium section is deleted. This configuration can enhance the confidentiality of encrypted data because the key data is not leaked even when the recording medium in which key data of the encrypted data is recorded is carried away.