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:
Jun. 17, 2025
Filed:
Aug. 19, 2021
Hitachi, Ltd., Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
An information processing system includes first and second computers and first and second bases. The first computer stores, as personal information of a user of a terminal, personal management information including an ID and contact detail of the user, generates personal time-series information with personal information and time added and generates processed time-series information by performing concealment on the personal information in the personal time-series information. The processed time-series information is transmitted to the second computer, which generates search range information for the processed time-series information from a search condition for the processed time-series information for specifying the user at the first base and a message to be transmitted to the user at the first base, and transmits the search range information to the first computer, and the first computer specifies the user by searching for the personal time-series information, with the search condition of the received search range information.