Ryoji Kumaki
2Patents
2h-index
9Co-inventors
27Inventor score
Filing activity: Dec 3, 2003 → Dec 4, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6822801B2 | Device for determining focused state of taking lens | Electricity | 11 | Expired |
| US6833538B2 | Device for determining focused state of taking lens | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.