Katsuhiro Echigo
46Patents
22h-index
50Co-inventors
88Inventor score
Filing activity: Mar 31, 1989 → Jan 20, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6347212B1 | Image forming apparatus having improved image carrier cleaning | Physics | 50 | Expired |
| US4985733A | Image fixing unit for use in wet-type electrophotographic copying machine | Physics | 41 | Expired |
| US5155534A | Apparatus for forming and developing latent electrostatic images with liquid developer and release agent | Physics | 41 | Expired |
| US5493365A | Operating section for an image forming apparatus | Physics | 40 | Expired |
| US5359398A | Electrophotographic copier with a developing device using a liquid developer | Physics | 37 | Expired |
| US7127202B2 | Intermediary transfer apparatus, fixing apparatus and image forming apparatus | Physics | 35 | Expired |
| US5708949A | Image fixing device for image forming apparatus | Physics | 34 | Expired |
| US6795678B2 | Image forming apparatus for fixing a toner image on a sheet or recording medium by use of a belt member | Physics | 34 | Expired |
| US5021834A | Wet-type image formation apparatus | Physics | 33 | Expired |
| US7233762B2 | Method of uniformly fixing toner to recording medium in image forming apparatus | Physics | 33 | Expired |
| US5155531A | Apparatus for decomposing ozone by using a solvent mist | Physics | 30 | Expired |
| US7299003B2 | Fixing unit and image forming apparatus providing a quick start-up and reduction in energy consumption | Physics | 30 | Expired |
| US5610725A | Communication system for managing data of resources of image forming unit | Electricity | 30 | Expired |
| US5642188A | Wet-type electrophotographic image formation method | Physics | 30 | Expired |
| US7010255B2 | Fixing device having a heating member and image forming apparatus including the same | Physics | 29 | Expired |
| US6847792B2 | Image forming apparatus having a selectively discharged storage | Physics | 25 | Expired |
| US5592275A | Image fixing device with oil application roller for image forming apparatus | Physics | 25 | Expired |
| US7254362B2 | Fixing device, image forming apparatus using the fixing device, and heat insulating member | Physics | 24 | Expired |
| US7269384B2 | Transfer-fixing unit with a surface layer of predefined hardness for use in an image forming apparatus | Physics | 24 | Expired |
| US7177580B2 | Image forming method and apparatus for fixing an image | Physics | 23 | Expired |
| US5384225A | Liquid developer for latent electrostatic images | Physics | 23 | Expired |
| US5463453A | Wet-type image formation apparatus | Physics | 23 | Expired |
| US6957036B2 | Fixing member, fixing device, and image forming apparatus | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7139520B2 | Fixing device, nipping device, and image forming apparatus | Physics | 22 | Expired |
| US5463447A | Device for removing a toner from a toner image carrier | Physics | 22 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.