Issued Patents All Time
Showing 1–25 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12393722 | Encrypted tag generation apparatus, searchable encryption system, encrypted tag generation method, and computer readable medium | — | 2025-08-19 |
| 12261951 | Cryptographic system, encrypted data conversion apparatus, and computer readable medium | — | 2025-03-25 |
| 12216787 | Searchable encryption system, searchable encryption method, and non-transitory computer-readable recording medium | Takato Hirano, Yoshihiro Koseki, Satoshi Yasuda | 2025-02-04 |
| 12177346 | Re-encryption device, cryptographic system, re-encryption method, and computer readable medium | — | 2024-12-24 |
| 12061604 | Searchable encryption system | Takato Hirano, Yoshihiro Koseki | 2024-08-13 |
| 12049428 | Baking slurry composition, green sheet, method for manufacturing green sheet, method for manufacturing sintered product, and method for manufacturing monolithic ceramic capacitor | — | 2024-07-30 |
| 12006266 | Baking slurry composition, green sheet, method for manufacturing green sheet, method for manufacturing sintered product, and method for manufacturing monolithic ceramic capacitor | — | 2024-06-11 |
| 11984716 | Power cable embedded floor panel | Tsuyoshi Kamenoue, Hiroyuki Tanaka | 2024-05-14 |
| 11902418 | Registration device, search operation device, and data management device | Takato Hirano, Yoshihiro Koseki, Satoshi Yasuda | 2024-02-13 |
| 11831769 | Registration device, server device, searchable encryption system, and searchable encryption method | Takato Hirano, Yoshihiro Koseki | 2023-11-28 |
| 11824638 | Re-encryption device, method and computer readable medium to change the access range for ciphertext | Yoshihiro Koseki | 2023-11-21 |
| 11790105 | Secret search system and secret search method | Kenichiro HAYASAKA | 2023-10-17 |
| 11687682 | Computing device security cable | Yutaro Saito, Yohichi Miwa | 2023-06-27 |
| 11475172 | Adjustable viewing angle for a computer privacy filter | Yuta Adachi, Yohichi Miwa | 2022-10-18 |
| 11451372 | Privacy-preserving analysis device, privacy-preserving analysis system, privacy-preserving analysis method, and computer readable medium | Takato Hirano, Yoshihiro Koseki | 2022-09-20 |
| 11431496 | Secret search device and secret search method | Kenichiro HAYASAKA | 2022-08-30 |
| 11412372 | Secure display of transaction approval code | Hiroyuki Tanaka, Norio Ueguri | 2022-08-09 |
| 11374742 | Conversion key generation device, ciphertext conversion device, privacy-preserving information processing system, conversion key generation method, ciphertext conversion method, and computer | Satoshi Yasuda, Yoshihiro Koseki, Ryo HIROMASA | 2022-06-28 |
| 11360978 | Search device, tag generation device, query generation device, searchable encryption system and computer readable medium | Yoshihiro Koseki | 2022-06-14 |
| 11349654 | Re-encryption key generation device, re-encryption device, re-encrypted ciphertext decryption device, and cryptographic system | Yoshihiro Koseki | 2022-05-31 |
| 11245750 | File server load balancing | Shingo Nagai, Yohichi Miwa | 2022-02-08 |
| 11233629 | Registration apparatus, search operation apparatus, data management apparatus | Takato Hirano, Yoshihiro Koseki | 2022-01-25 |
| 11170123 | Registration terminal, key server, search system, and computer readable medium | Yoshihiro Koseki | 2021-11-09 |
| 11165597 | Differentiating attendees in a conference call | Junji Matsuguma, Hiroyuki Tanaka, Norio Ueguri | 2021-11-02 |
| 11139952 | Homomorphic computation device, encryption system, and computer readable medium | Ryo HIROMASA | 2021-10-05 |