Yoji Kumazaki
2Patents
2h-index
7Co-inventors
30Inventor score
Filing activity: Mar 18, 2003 → Dec 15, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7401232B2 | Content playback apparatus method and program and key management apparatus and system | Electricity | 22 | Expired |
| US7860255B2 | Content distribution server, key assignment method, content output apparatus, and key issuing center | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.