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:
Feb. 07, 2017
Filed:
Mar. 20, 2014
Hitachi, Ltd., Tokyo, JP;
Takaaki Haruna, Tokyo, JP;
Nobuaki Kohinata, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
Provided is a technology for improving the efficiency and the accuracy of data security. To this end, protection information provided to data is maintained correct even when it becomes necessary to change the necessity/non-necessity to protect the data depending on the content of a process performed on the data. More specifically, primitive data with protection attributes set thereon is read as the original data, and an operation is performed on the original data to generate derived data. Then, whether to make the derived data inherit the protection attributes of the original data is determined on the basis of a content of the operation performed on the original data.