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. 30, 2024
Filed:
Feb. 20, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Zen Ishikura, Musashino, JP;
Satoshi Hasegawa, Musashino, JP;
Seiji Takahashi, Musashino, JP;
Susumu Kakuta, Musashino, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A technique of performing anonymization without impairing usefulness of data. An anonymization apparatus includes an overlapping exclusion part configured to generate a partial table of M×L including L records of a table to be anonymized which have sets of values of p master attributes different from each other, from the table to be anonymized of M×N, where M is the number of attributes, N is the number of records, p is the number of master attributes, and L is the number of sets of values of p master attributes which are different from each other, an anonymization part configured to generate an anonymized partial table of M×L from the partial table by anonymizing the p master attributes in the partial table, and an overlapping restoration part configured to generate an anonymized table of M×N.