US 12,333,044 B2
Information processing system, information processing method, and computer
Hiroaki Konoura, Tokyo (JP); Masafumi Kinoshita, Tokyo (JP); and Keisuke Shirai, Tokyo (JP)
Assigned to HITACHI, LTD., Tokyo (JP)
Appl. No. 18/022,357
Filed by Hitachi, Ltd., Tokyo (JP)
PCT Filed Aug. 19, 2021, PCT No. PCT/JP2021/030406
§ 371(c)(1), (2) Date Feb. 21, 2023,
PCT Pub. No. WO2022/107406, PCT Pub. Date May 27, 2022.
Claims priority of application No. 2020-190785 (JP), filed on Nov. 17, 2020.
Prior Publication US 2023/0315900 A1, Oct. 5, 2023
Int. Cl. G06F 21/62 (2013.01); G06F 16/903 (2019.01)
CPC G06F 21/6245 (2013.01) [G06F 16/90335 (2019.01)] 15 Claims
OG exemplary drawing
 
1. An information processing system comprising:
a first computer operating at a first base;
a second computer operating at a second base; and
a client terminal connected to the first computer, wherein
the first computer
stores, as personal information of a user who uses the client terminal, personal management information including an identifier and a contact detail of the user,
acquires operation information of the client terminal to generate personal time-series information in which the personal information of the user and time are added to the operation information,
generates processed time-series information by performing predetermined concealment on the personal information in the personal time-series information, and
transmits the processed time-series information to the second computer,
the second computer
receives the processed time-series information from the first computer,
generates search range 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 including the personal information, with the search condition of the search range information, when the search range information is received from the second computer.