Inventor
OHASHI SHIGENORI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “OHASHI SHIGENORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
18 patentsUS12248591B2Mar 11, 2025
Control server for sharing data using distributed ledger, data sharing system with distributed ledger, and control program for sharing data with distributed ledger
NIPPON TELEGRAPH & TELEPHONE2 citations72
US12081813B2Sep 3, 2024
Video distribution method, distribution device, and inspection device
NIPPON TELEGRAPH & TELEPHONE2 citations72
US11868322B2Jan 9, 2024
Content use system
NIPPON TELEGRAPH & TELEPHONE2 citations72
US11720689B2Aug 8, 2023
Data registration method, data decryption method, data structure, computer, and program
NIPPON TELEGRAPH & TELEPHONE2 citations72
US12050559B2Jul 30, 2024
Data update device, data update method, data update program, and data structure
NIPPON TELEGRAPH & TELEPHONE2 citations71
US11424913B2Aug 23, 2022
Key exchange system and key exchange method
NIPPON TELEGRAPH & TELEPHONE2 citations71
US12158863B2Dec 3, 2024
Right holder terminal, user terminal, and non-transitory computer-readable medium
NIPPON TELEGRAPH & TELEPHONE0 citations62
US12117971B2Oct 15, 2024
Content use system
NIPPON TELEGRAPH & TELEPHONE0 citations62
US12354088B2Jul 8, 2025
Identifier change management apparatus, identifier change management method, and identifier change management program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12314349B2May 27, 2025
Content contract system, content contract method, and control terminal
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12309285B2May 20, 2025
Identifier change management apparatus, identifier change management method, and identifier change management program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12124475B2Oct 22, 2024
Blockchain system, approval terminal, user terminal, history management method, and history management program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12081675B2Sep 3, 2024
Content use system, permission terminal, browsing terminal, distribution terminal, and content use program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11888985B2Jan 30, 2024
Blockchain system, registration terminal, approval terminal, smart contract registration method, and smart contract registration program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11372847B2Jun 28, 2022
Block verification device, block verification method, and program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12223072B2Feb 11, 2025
Right-holder terminal, user terminal, and content usage method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US12063292B2Aug 13, 2024
Proprietor terminal, user terminal, and new proprietor terminal
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11893583B2Feb 6, 2024
Settlement system, settlement method, user device, and settlement program
NIPPON TELEGRAPH & TELEPHONE0 citations50
NTT INC
3 patentsUS12470367B2Nov 11, 2025
Identifier change management apparatus, identifier change management method, and identifier change management program
NTT INC0 citations62
US12445297B2Oct 14, 2025
Control apparatus, data registration system, and control program
NTT INC0 citations51
US12476795B2Nov 18, 2025
Registration terminal, holder terminal, method, and program
NTT INC0 citations47