Masanobu Deguchi
48Patents
10h-index
65Co-inventors
78Inventor score
Filing activity: Nov 22, 1976 → May 1, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7218866B2 | Developer container and image forming apparatus | Physics | 31 | Expired |
| US7486915B2 | Toner cartridge and image forming apparatus to be mounted with the toner cartridge | Physics | 30 | Active |
| US5754713A | Image-reading device | Electricity | 24 | Expired |
| US5915691A | Document feeder and cover for an image forming apparatus | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4814817A | Image forming device with separable units | Physics | 18 | Expired |
| US7522866B2 | Developer container and image forming apparatus | Physics | 18 | Expired |
| US5535010A | Portable image processing apparatus | Electricity | 17 | Expired |
| US5624107A | Image forming apparatus with a document feeder | Physics | 14 | Expired |
| US4276978A | Sheet conveyor for use in copying machines | Performing Operations; Transporting | 13 | Expired |
| US6736502B2 | Expandable/contractible type portable printer | Performing Operations; Transporting | 12 | Expired |
| US7672609B2 | Toner container and toner supply device unit using the same | Physics | 10 | Active |
| US4332457A | Fixing device for fixing images of an original document on plain paper copy sheets | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5113225A | Optical system driving device | Physics | 9 | Expired |
| US7676183B2 | Toner supply device and developing unit using the same for use in an image forming apparatus for performing image formation with toner | Physics | 9 | Active |
| US7035574B2 | Developer container and image forming apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5233389A | Driving device for a document platen and copying machine incorporating a movable document platen | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7515853B2 | Toner supply device and developing unit using the same | Physics | 7 | Active |
| US5725207A | Sheet feeding/discharging device designed for image forming apparatus | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7174120B2 | Developer supply device containing a stopping member which moves into a toner supply port and restricts rotation of the device and image forming apparatus including the same | Physics | 6 | Expired |
| US7561821B2 | Developer supplying apparatus with developer container supporting body | Physics | 5 | Active |
| US7162190B2 | Toner feeder | Physics | 4 | Expired |
| US6666536B2 | Ink jet device with movable platen | Performing Operations; Transporting | 4 | Expired |
| US7302211B2 | Charging apparatus and image forming apparatus with plated electrode | Physics | 4 | Expired |
| US4108544A | Driving mechanism for travelling original carrier in an electrophotographic copying machine | Physics | 4 | Expired |
| US8155569B2 | Toner cartridge and image forming apparatus | Physics | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.