Toru Tanjo
43Patents
6h-index
37Co-inventors
69Inventor score
Filing activity: Nov 13, 1986 → Aug 29, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5988621A | Recycle document feeder | Performing Operations; Transporting | 12 | Expired |
| US6073927A | Automatic document feeder | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4717938A | Paper transferring apparatus for a copying machine | Physics | 10 | Expired |
| US5878318A | Automatic document feeder | Electricity | 10 | Expired |
| US4811050A | Apparatus for the forming of images with a cleaning device for a corona wire | Physics | 8 | Expired |
| US5026043A | Overlapped-transfer preventing paper supply device in image forming apparatus | Performing Operations; Transporting | 7 | Expired |
| US6164641A | Document separating mechanism of automatic document feeder | Performing Operations; Transporting | 5 | Expired |
| US6120017A | Automatic document feeder | Performing Operations; Transporting | 5 | Expired |
| US5822673A | Reservation--type document feeder | Performing Operations; Transporting | 5 | Expired |
| US7778576B2 | Development device with partitioned developer container for reserving liquid developer | Physics | 4 | Active |
| US5078382A | Paper feeder | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7460826B2 | Image forming apparatus | Physics | 4 | Active |
| US5520379A | Document conveying appartus | Physics | 3 | Expired |
| US6019361A | Automatic document feeder | Electricity | 3 | Expired |
| US7364154B2 | Sheet feeding device | Performing Operations; Transporting | 3 | Expired |
| US7447462B2 | Image forming apparatus with exhaust duct | Physics | 3 | Active |
| US9254694B2 | Recording apparatus | Performing Operations; Transporting | 2 | Active |
| US5931454A | Recycle document feeder | Physics | 2 | Expired |
| US8910899B2 | Core tube holding device and image recording device | Performing Operations; Transporting | 2 | Active |
| US7469114B2 | Image forming apparatus and sheet feeding device in which weight exerted on lifting handles is equalized | Physics | 2 | Active |
| US8023848B2 | Density measuring device, liquid developer storing apparatus, and image forming apparatus | Physics | 2 | Active |
| US5923941A | Document transport device | Performing Operations; Transporting | 2 | Expired |
| US9527318B2 | Recording apparatus | Performing Operations; Transporting | 1 | Active |
| US6062559A | Automatic document feeder and conveying belt mechanism of automatic document feeder | Performing Operations; Transporting | 1 | Expired |
| US5954329A | Document feeder having an improved separator mechanism | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.