Issued Patents 2022
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11451372 | Privacy-preserving analysis device, privacy-preserving analysis system, privacy-preserving analysis method, and computer readable medium | Yutaka Kawai, Takato Hirano | 2022-09-20 |
| 11374742 | Conversion key generation device, ciphertext conversion device, privacy-preserving information processing system, conversion key generation method, ciphertext conversion method, and computer | Satoshi Yasuda, Yutaka Kawai, Ryo HIROMASA | 2022-06-28 |
| 11360978 | Search device, tag generation device, query generation device, searchable encryption system and computer readable medium | Yutaka Kawai | 2022-06-14 |
| 11349654 | Re-encryption key generation device, re-encryption device, re-encrypted ciphertext decryption device, and cryptographic system | Yutaka Kawai | 2022-05-31 |
| 11233629 | Registration apparatus, search operation apparatus, data management apparatus | Takato Hirano, Yutaka Kawai | 2022-01-25 |