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.:

US 9268961 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 23, 2016

Filed:

Jan. 25, 2012
Applicant:

Hiroshi Okamoto, Kawasaki, JP;

Inventor:

Hiroshi Okamoto, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); G06F 21/62 (2013.01);
U.S. Cl.
CPC ...
G06F 21/6218 (2013.01); G06F 2221/2143 (2013.01);
Abstract

In a storage system, a storage apparatus has an encryption key generator and an encryption processor that encrypts data to be recorded in a storage region using an encryption key from the encryption key generator, and is able to change an encryption key for each divided region set in the storage region. A control apparatus has a logical volume setting unit that requests the encryption processor to set an individual divided region for each storage region set as a logical volume in the storage region of the storage apparatus and a data erasure processor that requests the encryption processor to change the encryption key used for encryption in the divided region corresponding to the logical volume to be erased.


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Okamoto, Hiroshi. (2016). Storage system, storage control apparatus, and storage control method (U.S. Patent No. 9268961). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9268961

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