Patents by Inventor Hiroshi Toyoizumi
Hiroshi Toyoizumi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240378300Abstract: [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.Type: ApplicationFiled: September 6, 2022Publication date: November 14, 2024Applicant: A.T COMMUNICATIONS CO., LTD.Inventors: Hiroshi TOYOIZUMI, Youichi AZUMA, Hajime MORIMOTO, Atsushi MORIMOTO
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Publication number: 20240289482Abstract: 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.Type: ApplicationFiled: June 23, 2022Publication date: August 29, 2024Applicant: A.T COMMUNICATIONS CO., LTD.Inventors: Hiroshi TOYOIZUMI, Youichi AZUMA, Hajime MORIMOTO, Atsushi MORIMOTO
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Patent number: 11443068Abstract: 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.Type: GrantFiled: November 15, 2021Date of Patent: September 13, 2022Assignees: SATORI ELECTRIC CO., LTD., A⋅T COMMUNICATIONS CO., LTD.Inventors: Takafumi Kakioka, Hiroshi Toyoizumi, Youichi Azuma
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Publication number: 20220092222Abstract: 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.Type: ApplicationFiled: November 15, 2021Publication date: March 24, 2022Inventors: Takafumi KAKIOKA, Hiroshi TOYOIZUMI, Youichi AZUMA
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Patent number: 11200344Abstract: 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.Type: GrantFiled: April 1, 2019Date of Patent: December 14, 2021Assignees: SATORI ELECTRIC CO., LTD., A⋅T COMMUNICATIONS CO., LTD.Inventors: Takafumi Kakioka, Hiroshi Toyoizumi, Youichi Azuma
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Publication number: 20210264060Abstract: 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.Type: ApplicationFiled: April 1, 2019Publication date: August 26, 2021Inventors: Takafumi KAKIOKA, Hiroshi TOYOIZUMI, Youichi AZUMA
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Patent number: 10360821Abstract: A character code conversion device (10) utilizes not a standard character code table but a conversion character code table that is the converted standard character code, and transmits a conversion character code string indicating a sentence subjected to transmission to a sentence recognition device (20) via a network (N). Hence, even if a third party obtains the conversion character code string, the standard character code table is utilized, and thus the character string specified from the conversion character code string is completely different from the sentence subjected to transmission. Accordingly, proper recognition of the sentence subjected to transmission is difficult. Consequently, the security of the sentence subjected to transmission is enhanced.Type: GrantFiled: February 3, 2014Date of Patent: July 23, 2019Assignee: AT Communications Co., Ltd.Inventors: Hiroshi Toyoizumi, Youichi Azuma, Tetsuya Takahashi, Maya Takami
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Patent number: 10277585Abstract: 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.Type: GrantFiled: July 21, 2015Date of Patent: April 30, 2019Assignee: A.T COMMUMCATIONS CO., LTD.Inventors: Hiroshi Toyoizumi, Youichi Azuma, Tetsuya Takahashi, Maya Takami
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Patent number: 10102463Abstract: In a two-dimensional code generation device (100), a white point determiner (111) determines a white point in an environment to output a two-dimensional code. A threshold acquirer (112) acquires a threshold of lightness used by a reading device for reading multiple cells in binary, the threshold being represented in a device-independent color space that is based on the white point determined by the white point determiner (111). A two-dimensional code generator (113) generates a two-dimensional code expressing information by a distribution pattern of multiple cell dots formed by coloring the multiple cells in a color of lightness equal to or higher than the threshold acquired by the threshold acquirer (112) and in a color of lightness lower than the threshold.Type: GrantFiled: January 13, 2015Date of Patent: October 16, 2018Assignee: A.T Communications Co., Ltd.Inventors: Hiroshi Toyoizumi, Youichi Azuma, Toshiki Nishiyama, Takuji Tokiwa
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Publication number: 20180145962Abstract: 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.Type: ApplicationFiled: July 21, 2015Publication date: May 24, 2018Applicant: A.T COMMUNICATIONS CO., LTD.Inventors: Hiroshi TOYOIZUMI, Youichi AZUMA, Tetsuya TAKAHASHI, Maya TAKAMI
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Publication number: 20180025263Abstract: In a two-dimensional code generation device (100), a white point determiner (111) determines a white point in an environment to output a two-dimensional code. A threshold acquirer (112) acquires a threshold of lightness used by a reading device for reading multiple cells in binary, the threshold being represented in a device-independent color space that is based on the white point determined by the white point determiner (111). A two-dimensional code generator (113) generates a two-dimensional code expressing information by a distribution pattern of multiple cell dots formed by coloring the multiple cells in a color of lightness equal to or higher than the threshold acquired by the threshold acquirer (112) and in a color of lightness lower than the threshold.Type: ApplicationFiled: January 13, 2015Publication date: January 25, 2018Inventors: Hiroshi Toyoizumi, Youichi Azuma, Toshiki Nishiyama, Takuji Tokiwa
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Publication number: 20170186342Abstract: A character code conversion device (10) utilizes not a standard character code table but a conversion character code table that is the converted standard character code, and transmits a conversion character code string indicating a sentence subjected to transmission to a sentence recognition device (20) via a network (N). Hence, even if a third party obtains the conversion character code string, the standard character code table is utilized, and thus the character string specified from the conversion character code string is completely different from the sentence subjected to transmission. Accordingly, proper recognition of the sentence subjected to transmission is difficult. Consequently, the security of the sentence subjected to transmission is enhanced.Type: ApplicationFiled: February 3, 2014Publication date: June 29, 2017Inventors: Hiroshi Toyoizumi, Youichi Azuma, Tetsuya Takahashi, Maya Takami
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Patent number: 9654291Abstract: In an authentication system, a mobile communication client transmits to an authentication server a bit signal that includes an image capture bit sequence obtained by capturing an image of a self-aware two-dimensional code having authentication information embedded in a correction area, and a number bit sequence that indicates a serial number of an authentication application program being stored in storage. The authentication server authenticates the user of the mobile communication client and the self-aware two-dimensional code. Subsequently, the authentication server transmits designated information expressed by the self-aware two-dimensional code to the mobile communication client, on the condition that the user and the self-aware two-dimensional code are successfully authenticated. Consequently, the mobile communication client is able to acquire the designated information expressed by the self-aware two-dimensional code.Type: GrantFiled: July 3, 2013Date of Patent: May 16, 2017Assignee: A.T Communications Co., Ltd.Inventors: Hiroshi Toyoizumi, Youichi Azuma
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Publication number: 20160036589Abstract: In an authentication system, a mobile communication client transmits to an authentication server a bit signal that includes an image capture bit sequence obtained by capturing an image of a self-aware two-dimensional code having authentication information embedded in a correction area, and a number bit sequence that indicates a serial number of an authentication application program being stored in storage. The authentication server authenticates the user of the mobile communication client and the self-aware two-dimensional code. Subsequently, the authentication server transmits designated information expressed by the self-aware two-dimensional code to the mobile communication client, on the condition that the user and the self-aware two-dimensional code are successfully authenticated. Consequently, the mobile communication client is able to acquire the designated information expressed by the self-aware two-dimensional code.Type: ApplicationFiled: July 3, 2013Publication date: February 4, 2016Inventors: Hiroshi Toyoizumi, Youichi Azuma