At System Obtains Patent for Encryption Key Management Method in "Applicant Record Web Registration System": "Organization-Specific Encryption Key Storage Method and System"
At System Co., Ltd., a provider of SaaS products for educational institutions, has announced the acquisition of a patent (Patent No. 7762911) for its "Organization-Specific Encryption Key Storage Method and System," part of its "Applicant Record Web Registration System." This patent ensures a top-tier security mechanism that prevents information leakage of applicant data, allowing decryption only by the involved schools, without compromising convenience for junior and senior high schools.
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- 📰 Published: May 11, 2026 at 20:00
- 🔍 Collected: May 11, 2026 at 11:31
- 🤖 AI Analyzed: May 11, 2026 at 11:45 (13 min after Collected)
At System Co., Ltd. (Headquarters: Natori City, Miyagi Prefecture; Representative Director: Michiyo Saso; hereinafter "At System"), a provider of SaaS products for educational institutions, is pleased to announce that its patent application for "Organization-Specific Encryption Key Storage Method and System" has been approved, leading to the acquisition of a patent (Patent No. 7762911) for its "Applicant Record Web Registration System," a cloud service that digitizes applicant records and manages the distribution and reception of entrance examination documents in conjunction with other companies' internet application systems.
This patent realizes a mechanism that prevents information leakage of applicant record data, ensuring that no one other than the involved school can decrypt it, thereby maintaining the highest level of security without hindering the convenience of junior and senior high schools.
Furthermore, this patent covers a wide range of data and various file types. Therefore, it is expected to be utilized not only for applicant record data but also for the submission of confidential files (such as applications for special consideration during applications, supplementary reports, and submission of academic records before admission), which the Digital Agency anticipates for future data linkages.
**Patent Overview**
Patent Summary: A method for securely storing common encryption keys among "organization and organization," "organization and individual," and "individual and individual."
Patent Number: Patent No. 7762911
Name of Invention: Organization-Specific Encryption Key Storage Method and System
Application Number: Patent Application 2022-026188
**Protecting Personal Information with a Mechanism Undecryptable Even by System Administrators**
Applicant record data is uniquely encrypted*1 to prevent information leakage in internet-connected PC environments and communication pathways. Although the system performs automatic matching with internet applications*2, when data is stored on the server, it is encrypted with a different encryption key for each school. Furthermore, this encryption key itself is encrypted using a passphrase that is not stored within the system. This ensures a high level of security, making it undecryptable by anyone other than the party holding the passphrase.
*1 Patent No. 7012400 Applicant Record Data Preparation Method and Applicant Record Data Preparation Program
*2 Patent No. 6752480 Method for Matching Application Data and Applicant Record Data
**Usage and Features of Applicant Record Web Registration System**
The "Applicant Record Web Registration System" was officially launched after a demonstration experiment in the 2020 entrance examination (private high schools in Aichi Prefecture) and is the nation's first electronic applicant record service linked with internet applications.
For the 2026 entrance examination, it is being used by 1,705 junior high schools in 47 prefectures and has been adopted by local governments and private schools as a platform for junior high schools to submit applicant records to both public high school entrance examinations and private high school entrance examinations. Currently, it is also being utilized for the submission and distribution of entrance examination-related documents (digital data) between junior and senior high schools.
* Automatic matching of applicant record data via API linkage with other companies' internet systems
* Submission of applicant record data compatible with both public high school entrance examinations and private high school entrance examinations
* Data transmission and reception of entrance examination-related documents between junior and senior high schools
**Demo Exhibition at EDIX Tokyo 2026**
At EDIX Tokyo 2026, the largest exhibition in Japan's education sector, a system demo of the "Applicant Record Web Registration System" will be showcased, including encrypted file submission, automatic matching and linkage with application data, and file transmission/reception functions.
Exhibition Name: EDIX Tokyo 2026
Venue: Tokyo Big Sight
Dates: May 13 (Wed) - 15 (Fri), 2026
Booth: Booth Number: 21-31
**Company Profile**
Company Name: At System Co., Ltd.
Location: 4-7-20 Masuda, Natori City, Miyagi Prefecture
Representative: Michiyo Saso
Capital: 20 million JPY
Established: July 3, 2000
URL: https://www.atsystem.jp/
**[Business Activities]**
Development and operation of mass communication system "e-message", digital-only internet application "Campus Skip (abbreviation: Ckip)", and attendance management system exclusively for educational institutions "Kintai Sensei".
**[Product Websites]**
e-message: https://www.e-msg.jp/
Ckip: https://www.ckip.jp/
Kintai Sensei: https://ekintai.jp/
This patent realizes a mechanism that prevents information leakage of applicant record data, ensuring that no one other than the involved school can decrypt it, thereby maintaining the highest level of security without hindering the convenience of junior and senior high schools.
Furthermore, this patent covers a wide range of data and various file types. Therefore, it is expected to be utilized not only for applicant record data but also for the submission of confidential files (such as applications for special consideration during applications, supplementary reports, and submission of academic records before admission), which the Digital Agency anticipates for future data linkages.
**Patent Overview**
Patent Summary: A method for securely storing common encryption keys among "organization and organization," "organization and individual," and "individual and individual."
Patent Number: Patent No. 7762911
Name of Invention: Organization-Specific Encryption Key Storage Method and System
Application Number: Patent Application 2022-026188
**Protecting Personal Information with a Mechanism Undecryptable Even by System Administrators**
Applicant record data is uniquely encrypted*1 to prevent information leakage in internet-connected PC environments and communication pathways. Although the system performs automatic matching with internet applications*2, when data is stored on the server, it is encrypted with a different encryption key for each school. Furthermore, this encryption key itself is encrypted using a passphrase that is not stored within the system. This ensures a high level of security, making it undecryptable by anyone other than the party holding the passphrase.
*1 Patent No. 7012400 Applicant Record Data Preparation Method and Applicant Record Data Preparation Program
*2 Patent No. 6752480 Method for Matching Application Data and Applicant Record Data
**Usage and Features of Applicant Record Web Registration System**
The "Applicant Record Web Registration System" was officially launched after a demonstration experiment in the 2020 entrance examination (private high schools in Aichi Prefecture) and is the nation's first electronic applicant record service linked with internet applications.
For the 2026 entrance examination, it is being used by 1,705 junior high schools in 47 prefectures and has been adopted by local governments and private schools as a platform for junior high schools to submit applicant records to both public high school entrance examinations and private high school entrance examinations. Currently, it is also being utilized for the submission and distribution of entrance examination-related documents (digital data) between junior and senior high schools.
* Automatic matching of applicant record data via API linkage with other companies' internet systems
* Submission of applicant record data compatible with both public high school entrance examinations and private high school entrance examinations
* Data transmission and reception of entrance examination-related documents between junior and senior high schools
**Demo Exhibition at EDIX Tokyo 2026**
At EDIX Tokyo 2026, the largest exhibition in Japan's education sector, a system demo of the "Applicant Record Web Registration System" will be showcased, including encrypted file submission, automatic matching and linkage with application data, and file transmission/reception functions.
Exhibition Name: EDIX Tokyo 2026
Venue: Tokyo Big Sight
Dates: May 13 (Wed) - 15 (Fri), 2026
Booth: Booth Number: 21-31
**Company Profile**
Company Name: At System Co., Ltd.
Location: 4-7-20 Masuda, Natori City, Miyagi Prefecture
Representative: Michiyo Saso
Capital: 20 million JPY
Established: July 3, 2000
URL: https://www.atsystem.jp/
**[Business Activities]**
Development and operation of mass communication system "e-message", digital-only internet application "Campus Skip (abbreviation: Ckip)", and attendance management system exclusively for educational institutions "Kintai Sensei".
**[Product Websites]**
e-message: https://www.e-msg.jp/
Ckip: https://www.ckip.jp/
Kintai Sensei: https://ekintai.jp/