Seiichi Susaki
16Patents
11h-index
36Co-inventors
68Inventor score
Filing activity: Jun 15, 1993 → Dec 4, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5465299A | Electronic document processing system and method of forming digital signature | Electricity | 296 | Expired |
| US6131162A | Digital data authentication method | Electricity | 253 | Expired |
| US6499105B1 | Digital data authentication method | Electricity | 132 | Expired |
| US6253322A | Electronic certification authentication method and system | Electricity | 81 | Expired |
| US6189032A | Client-server system for controlling access rights to certain services by a user of a client terminal | Physics | 77 | Expired |
| US5309516A | Group cipher communication method and group cipher communication system | Electricity | 64 | Expired |
| US6816969B2 | Digital signature generating method and digital signature verifying method | Electricity | 34 | Expired |
| US7526645B2 | Electronic document authenticity assurance method and electronic document disclosure system | Physics | 24 | Active |
| US6327658A | Distributed object system and service supply method therein | Physics | 22 | Expired |
| US7305558B1 | Digital signing method | Electricity | 21 | Expired |
| US7200682B2 | Time stamp generating system | Electricity | 17 | Expired |
| US7386722B2 | Certificate management system and method | Electricity | 8 | Expired |
| US7134021B2 | Method and system for recovering the validity of cryptographically signed digital data | Electricity | 6 | Expired |
| US7694126B2 | Method and system for recovering the validity of cryptographically signed digital data | Electricity | 5 | Active |
| US7770009B2 | Digital signing method | Electricity | 3 | Active |
| US7357313B2 | Information processor-based service providing system and method | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.