Sadayuki Hongo
22Patents
6h-index
14Co-inventors
58Inventor score
Filing activity: Feb 21, 2001 → Dec 17, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8306919B2 | IC card and authentication method in electronic ticket distribution system | Physics | 43 | Active |
| US7142847B2 | Mobile communication system, resource switching method thereof, network control apparatus included therein, same and network control method | Electricity | 37 | Expired |
| US7287165B2 | IC card, portable terminal, and access control method | Physics | 11 | Expired |
| US7580897B2 | IC card and authentication method in electronic ticket distribution system | Physics | 11 | Expired |
| US7346718B2 | Autonomous integrated-circuit card | Physics | 8 | Expired |
| US7031695B2 | Portable terminal, access control method, and access control program | Electricity | 7 | Expired |
| US7814557B2 | IC card and access control method | Physics | 6 | Active |
| US7403924B2 | Communication terminal, portable terminal, circulating server, providing server, electronic book distributing method, and electronic book distributing program | Physics | 6 | Expired |
| US7357329B2 | IC card, terminal device, and data communication method | Physics | 5 | Expired |
| US8122261B2 | Data communication apparatus and data communication method | Electricity | 5 | Active |
| US7346042B2 | Information distributing method, information distributing system, information distributing server, mobile communication network system and communication service providing method | Electricity | 3 | Expired |
| US7896236B2 | Electronic value exchange system and electronic value exchange method | Physics | 3 | Expired |
| US7590591B2 | Electronic value exchange system and electronic value exchange method | Physics | 1 | Active |
| US7975029B2 | Terminal equipment | Physics | 1 | Active |
| US7861293B2 | Mobile terminal and authentication method | Electricity | 1 | Active |
| US7416114B2 | Electronic value transfer device equipped with non-contact IC interface | Physics | 1 | Expired |
| US7340243B2 | Connection information management system for managing connection information used in communications between IC cards | Electricity | 0 | Expired |
| US7865438B2 | Electronic value exchange method, user device, and third-party device | Physics | 0 | Active |
| US7882030B2 | Connection information management system for managing connection information used in communications between IC cards | Physics | 0 | Active |
| US8161499B2 | Data processing device and data processing method | Physics | 0 | Active |
| US8468094B2 | Electronic value exchange system, mobile terminal, and electronic value exchange method | Physics | 0 | Active |
| US7500605B2 | Tamper resistant device and file generation method | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.