Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12354088 | Identifier change management apparatus, identifier change management method, and identifier change management program | Shigeru Fujimura, Atsushi Nakadaira | 2025-07-08 |
| 12314349 | Content contract system, content contract method, and control terminal | Atsushi Nakadaira, Hiroki Watanabe, Shigeru Fujimura, Tatsuro ISHIDA, Kota HIDAKA | 2025-05-27 |
| 12309285 | Identifier change management apparatus, identifier change management method, and identifier change management program | Shigeru Fujimura, Atsushi Nakadaira | 2025-05-20 |
| 12248591 | Control server for sharing data using distributed ledger, data sharing system with distributed ledger, and control program for sharing data with distributed ledger | Tatsuro ISHIDA, Shigeru Fujimura, Atsushi Nakadaira, Masayoshi CHIKADA | 2025-03-11 |
| 12223072 | Right-holder terminal, user terminal, and content usage method | Shigeru Fujimura, Atsushi Nakadaira, Masayoshi CHIKADA, Tatsuro ISHIDA, Hiroki Watanabe | 2025-02-11 |
| 12158863 | Right holder terminal, user terminal, and non-transitory computer-readable medium | Hiroki Watanabe, Tatsuro ISHIDA, Shigeru Fujimura, Atsushi Nakadaira | 2024-12-03 |
| 12124475 | Blockchain system, approval terminal, user terminal, history management method, and history management program | Hiroki Watanabe, Tatsuro ISHIDA, Shigeru Fujimura, Atsushi Nakadaira | 2024-10-22 |
| 12117971 | Content use system | Hiroki Watanabe, Tatsuro ISHIDA, Shigeru Fujimura, Atsushi Nakadaira | 2024-10-15 |
| 12081813 | Video distribution method, distribution device, and inspection device | Shigeru Fujimura, Hiroki Watanabe, Tatsuro ISHIDA, Atsushi Nakadaira, Kota HIDAKA | 2024-09-03 |
| 12081675 | Content use system, permission terminal, browsing terminal, distribution terminal, and content use program | Hiroki Watanabe, Tatsuro ISHIDA, Shigeru Fujimura, Atsushi Nakadaira | 2024-09-03 |
| 12063292 | Proprietor terminal, user terminal, and new proprietor terminal | Atsushi Nakadaira, Shigeru Fujimura, Masayoshi CHIKADA, Tatsuro ISHIDA, Hiroki Watanabe | 2024-08-13 |
| 12050559 | Data update device, data update method, data update program, and data structure | Shigeru Fujimura, Tatsuro ISHIDA, Atsushi Nakadaira, Hiroki Watanabe, Junichi Kishigami | 2024-07-30 |
| 11893583 | Settlement system, settlement method, user device, and settlement program | Atsushi Nakadaira, Shigeru Fujimura, Masayoshi CHIKADA, Tatsuro ISHIDA, Hiroki Watanabe +2 more | 2024-02-06 |
| 11888985 | Blockchain system, registration terminal, approval terminal, smart contract registration method, and smart contract registration program | Hiroki Watanabe, Shigeru Fujimura, Atsushi Nakadaira | 2024-01-30 |
| 11868322 | Content use system | Hiroki Watanabe, Tatsuro ISHIDA, Shigeru Fujimura, Atsushi Nakadaira | 2024-01-09 |
| 11720689 | Data registration method, data decryption method, data structure, computer, and program | Hiroki Watanabe, Shigeru Fujimura, Atsushi Nakadaira, Satoshi Sakuma | 2023-08-08 |
| 11424913 | Key exchange system and key exchange method | Hiroki Watanabe, Tsunekazu Saito, Koutarou Suzuki, Shigeru Fujimura, Atsushi Nakadaira | 2022-08-23 |
| 11372847 | Block verification device, block verification method, and program | Hiroki Watanabe, Shigeru Fujimura, Atsushi Nakadaira, Tatsuro ISHIDA | 2022-06-28 |