公开(公告)号：US20210264060A1

公开(公告)日：2021-08-26

申请号：US17263008

申请日：2019-04-01

Applicant: SATORI ELECTRIC CO., LTD. ,  A.T COMMUNICATIONS CO., LTD.

Inventor： Takafumi KAKIOKA ,  Hiroshi TOYOIZUMI ,  Youichi AZUMA

IPC: G06F21/64 ,  G06F21/60 ,  G06F21/88

Abstract: The invention prevents data from leaking. In a data management system (1), a terminal device (2) saves a remaining data among the remaining data and an incomplete data acquired by partitioning an image data of an ID card of a user in a storage unit, and uploads the incomplete data to a data management server (5) via a network (N). A data recovery device (4) acquires the remaining data from the terminal device (2), and acquires the incomplete data from the data management server (5) via the network (N). Further, the data recovery device (4) recovers the image data of the ID card of the user from the remaining data and the incomplete data.

公开(公告)号：US20180145962A1

公开(公告)日：2018-05-24

申请号：US15575329

申请日：2015-07-21

Applicant: A.T COMMUNICATIONS CO., LTD.

Inventor： Hiroshi TOYOIZUMI ,  Youichi AZUMA ,  Tetsuya TAKAHASHI ,  Maya TAKAMI

IPC: H04L29/06 ,  G06F21/30 ,  G06F17/22 ,  G06F21/62

CPC classification number: H04L63/083 ,  G06F17/2217 ,  G06F21/30 ,  G06F21/62 ,  G06F21/6245 ,  G09C5/00

Abstract: A server device for safely managing information is configured to store prescribed character codes and converted character codes in correlation with each other, said server device being connected, via a network (N), to a terminal device for receiving a converted character code string corresponding to a character string indicating personal information stored in a storage unit device. Responsive to the reception of a prescribed character code string corresponding to a character string indicating an item included in the personal information by the terminal device, the server device converts each of prescribed character codes included in the prescribed character code string to a corresponding converted character code, thereby generating a converted character code string corresponding to the character string indicating the item. The service device then commands the storage unit device to transmit the converted character code string corresponding to the character string indicating the personal information to the terminal device.

公开(公告)号：US20240378300A1

公开(公告)日：2024-11-14

申请号：US18692333

申请日：2022-09-06

Applicant: A.T COMMUNICATIONS CO., LTD.

Inventor： Hiroshi TOYOIZUMI ,  Youichi AZUMA ,  Hajime MORIMOTO ,  Atsushi MORIMOTO

IPC: G06F21/60 ,  G16H30/00

Abstract: [Problem] To provide a digital data encrypting method with which data concealment is enhanced. [Solution] A data encrypting method using an encrypting apparatus, the method including a first partial data input step in which first partial data that is a portion of data is inputted to the encrypting apparatus, a first encryption step in which the first partial data is encrypted and first encrypted data is obtained, a first partial data erasure step in which the first partial data is erased from the encrypting apparatus, a second partial data input step in which second partial data that is partial data of the aforementioned data other than the first partial data is inputted to the encrypting apparatus, and a second encryption step in which the second partial data is encrypted and second encrypted data is obtained.

公开(公告)号：US20240289482A1

公开(公告)日：2024-08-29

申请号：US18573441

申请日：2022-06-23

Applicant: A.T COMMUNICATIONS CO., LTD.

Inventor： Hiroshi TOYOIZUMI ,  Youichi AZUMA ,  Hajime MORIMOTO ,  Atsushi MORIMOTO

IPC: G06F21/62 ,  G09C1/00

CPC classification number: G06F21/6227 ,  G09C1/00

Abstract: To provide a highly confidential data management system. Provided is a data management system comprising: a data division unit 17 that obtains first data 13 and second data 15 obtained by dividing source data 11; a first data storage unit 19 that stores the first data 13; a code conversion unit 21 that obtains coded second data by converting the second data 15 into code information; a coded second data output unit 23 that outputs the coded second data as outputted coded second data; a code information reading unit 25 that reads the coded second data on the basis of the outputted coded second data; and a data restoration unit 27 that, on the basis of the coded second data read by the code information reading unit 25, reads the first data from the first data storage unit, and restores the source data.