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.

Date of Patent:
May. 26, 2026

Filed:

Oct. 01, 2024
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Divya Singh, Tokyo, JP;

Toshihiko Kashiyama, Tokyo, JP;

Tianben Ding, Tokyo, JP;

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/2453 (2019.01);
U.S. Cl.
CPC ...
G06F 16/24542 (2019.01); G06F 16/24535 (2019.01);
Abstract

A query processing device that reduces the calculation cost for checking whether a query complies with restrictions. A query dividing section generates subqueries by dividing an input query for each of a plurality of organizations. A score computing section computes an organization score by evaluating an organization-specific risk that is the risk of determination that the subquery does not comply with organization rules of the organization corresponding to the subquery, on the basis of history information relating to a determination track record resulting from determining, regarding each organization, whether or not the input query complies with the organization rules of each organization. A subquery control section sequentially transmits the subqueries to rule check devices in transmission order according to the organization score, and response information is received regarding the subquery from the rule check devices. Whether the input query complies with restrictions is determined by using the response information.


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