Yoshikuni Ishikawa
25Patents
4h-index
21Co-inventors
59Inventor score
Filing activity: Sep 8, 2006 → Feb 25, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7621519B2 | Sheet conveying apparatus, image reading apparatus, and image forming apparatus | Physics | 12 | Active |
| US7708276B2 | Sheet conveying path switching device used in image forming apparatus, and sheet conveying device | Performing Operations; Transporting | 8 | Active |
| US8480073B1 | Sheet feeder and image forming apparatus incorporating same | Performing Operations; Transporting | 5 | Active |
| US8532557B2 | Attachment assist device and image forming apparatus including same | Emerging Cross-Sectional Technologies | 5 | Active |
| US8177217B2 | Sheet feeding device and image forming apparatus incorporating same | Performing Operations; Transporting | 4 | Active |
| US7992858B2 | Sheet conveying apparatus, image scanning apparatus, and image forming apparatus | Physics | 4 | Active |
| US8342507B2 | Sheet conveying device and image forming apparatus | Performing Operations; Transporting | 4 | Active |
| US8267394B2 | Sheet feeding device and image forming apparatus incorporating same | Performing Operations; Transporting | 3 | Active |
| US8474811B2 | Sheet feeding device and image forming apparatus incorporating same | Performing Operations; Transporting | 2 | Active |
| US8857809B2 | Sheet separation/conveyance device and image forming apparatus incorporating same | Performing Operations; Transporting | 2 | Active |
| US9004482B2 | Sheet conveyor and image forming apparatus incorporating same | Performing Operations; Transporting | 2 | Active |
| US8523170B2 | Sheet feeder and image forming apparatus incorporating same | Performing Operations; Transporting | 1 | Active |
| US8585040B2 | Sheet feeder and image forming apparatus using the same | Performing Operations; Transporting | 1 | Active |
| US8752955B2 | Inkjet printer | Performing Operations; Transporting | 1 | Active |
| US8746675B2 | Sheet feeder and image forming apparatus incorporating same | Performing Operations; Transporting | 1 | Active |
| US8424865B2 | Sheet feeding device and image forming apparatus incorporating same | Performing Operations; Transporting | 0 | Active |
| US8573586B2 | Sheet feeder and image forming apparatus | Performing Operations; Transporting | 0 | Active |
| US8628074B2 | Sheet feeding device and image forming apparatus incorporating same | Performing Operations; Transporting | 0 | Active |
| US8439347B2 | Sheet conveying device and image forming apparatus | Performing Operations; Transporting | 0 | Active |
| US8511668B2 | Sheet feeding device and image forming apparatus incorporating same | Performing Operations; Transporting | 0 | Active |
| US8944708B2 | Sheet conveying device, and image forming apparatus including same | Performing Operations; Transporting | 0 | Active |
| US9302868B2 | Sheet feeder and image forming apparatus incorporating same | Performing Operations; Transporting | 0 | Active |
| US10124970B2 | Sheet feeder and image forming apparatus incorporating same | Performing Operations; Transporting | 0 | Active |
| US9290341B2 | Sheet conveyor and image forming apparatus incorporating same | Performing Operations; Transporting | 0 | Active |
| US8774699B2 | Sheet feeder and image forming apparatus | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.