Katsuhiro Kosuge
37Patents
14h-index
32Co-inventors
81Inventor score
Filing activity: Oct 25, 1994 → Jan 8, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5765059A | Developing device for image forming apparatus and toner container therefor | Physics | 53 | Expired |
| US5758235A | Toner container for a rotary developing device | Physics | 38 | Expired |
| US5671470A | Color image forming device which changes developing bias when switching between developer units | Physics | 35 | Expired |
| US6141520A | Developing device for image forming apparatus and toner container therefor | Physics | 34 | Expired |
| US5768664A | Toner container for a rotary developing device | Physics | 34 | Expired |
| US5552877A | Image forming apparatus with controlled drive for accurately positioning developing sections of a rotary developing device | Physics | 33 | Expired |
| US5826146A | Color image forming device which changes developing bias when switching between developer units | Physics | 31 | Expired |
| US5617198A | Image forming apparatus having rotary developing device | Physics | 26 | Expired |
| US5646721A | Image forming apparatus for supplying power to members of a rotary developing device | Physics | 22 | Expired |
| US5787328A | Rotary developing device for an image forming apparatus | Physics | 21 | Expired |
| US5612769A | Submodular unit for use in a modular rotary developing apparatus | Physics | 18 | Expired |
| US5761576A | Image forming apparatus for supplying power to members of a rotary developing device | Physics | 18 | Expired |
| US5940664A | Agitation and charging device for an image forming apparatus | Physics | 15 | Expired |
| US5850586A | Rotary developing device for an image forming apparatus | Physics | 15 | Expired |
| US5768662A | Toner supply cartridge for rotary developing device | Physics | 14 | Expired |
| US5887217A | Image forming apparatus that searches for toner cartridges in need of replacement | Physics | 13 | Expired |
| US5862430A | Image forming apparatus with a sensing device that determines the presence or absence of a toner cartridge | Physics | 13 | Expired |
| US5956549A | Rotary developing device for an image forming apparatus | Physics | 11 | Expired |
| US9315356B2 | Sheet processing apparatus having binding unit and image forming system thereof | Physics | 11 | Active |
| US9440478B2 | Paper binding device, paper processing apparatus, image forming apparatus, and image forming system | Physics | 10 | Active |
| US6546228B2 | Image forming apparatus conveniently upgradable to a duplex image forming apparatus | Physics | 10 | Expired |
| US9090051B2 | Sheet binding device, sheet processing apparatus, image forming apparatus, image forming system, and sheet binding method | Performing Operations; Transporting | 8 | Active |
| US9254621B2 | Method for attaching crimping members, sheet binding device, and image forming apparatus | Emerging Cross-Sectional Technologies | 8 | Active |
| US8899568B2 | Sheet processing apparatus and image forming system | Physics | 7 | Active |
| US9944488B2 | Sheet processing apparatus and image forming system | Performing Operations; Transporting | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.