Seiichi Shirasaki
30Patents
5h-index
32Co-inventors
69Inventor score
Filing activity: May 24, 1990 → Jan 23, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5168286A | Electrophotographic image forming apparatus and a thermal printer for such apparatus for adding supplemental data | Physics | 19 | Expired |
| US5738349A | Device for conveying sheet members | Physics | 16 | Expired |
| US5079589A | Detachable developing unit in an image forming apparatus | Physics | 13 | Expired |
| US5950050A | Image forming apparatus | Physics | 11 | Expired |
| US7866659B2 | Sheet-feeding mechanism, sheet-feeding device, and image forming apparatus | Performing Operations; Transporting | 6 | Active |
| US8915490B2 | Post-processing apparatus, image forming apparatus, and folding apparatus | Performing Operations; Transporting | 4 | Active |
| US7992864B2 | Sheet processing device and image forming apparatus | Physics | 3 | Active |
| US10035676B2 | Sheet conveying device and image forming apparatus therewith | Physics | 3 | Active |
| US11611673B2 | Sheet feeding apparatus and image forming system | Electricity | 2 | Active |
| US7823876B2 | Sheet feeding device and image forming apparatus including sheet feeding device with rear end detection portion | Performing Operations; Transporting | 2 | Active |
| US8840111B2 | Sheet delivering device | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7699310B2 | Post-processing apparatus and image forming system provided therewith | Performing Operations; Transporting | 1 | Active |
| US10616424B2 | Image forming apparatus | Electricity | 1 | Active |
| US8109503B2 | Connection mechanism, and paper feeding unit and image forming apparatus equipped with connection mechanism | Emerging Cross-Sectional Technologies | 1 | Active |
| US11560001B2 | Image forming system | Performing Operations; Transporting | 1 | Active |
| US8167299B2 | Sheet feeder and image forming apparatus provided with the sheet feeder | Physics | 1 | Active |
| US9606492B2 | Sheet folding device, image forming apparatus and gear coupling mechanism | Performing Operations; Transporting | 0 | Active |
| US9809412B2 | Sheet folding apparatus and sheet post-processing apparatus | Performing Operations; Transporting | 0 | Active |
| US12378092B2 | Sheet postprocessing apparatus that performs postprocessing on plurality of sheets stacked, and image forming system including same | Performing Operations; Transporting | 0 | Active |
| US12415701B2 | Sheet discharger, and sheet post-processor, image forming apparatus, and image forming system provided with the sheet discharger | Performing Operations; Transporting | 0 | Active |
| US11745966B2 | Sheet feeding device and image forming system therewith | Performing Operations; Transporting | 0 | Active |
| US12410030B2 | Sheet post-processing device and image forming system including same | Performing Operations; Transporting | 0 | Active |
| US9665056B2 | Reference plate moving mechanism for post-processing device | Physics | 0 | Active |
| US12338096B2 | Sheet post-processing apparatus and image forming system including the apparatus | Performing Operations; Transporting | 0 | Active |
| US10351379B2 | Paper discharge apparatus for discharging conveyed paper, and image forming apparatus equipped with same | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.