Nobumasa Abe
61Patents
13h-index
60Co-inventors
87Inventor score
Filing activity: May 31, 1985 → Sep 26, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6708011B2 | System for forming color images | Physics | 217 | Expired |
| US4914562A | Thermal jet recording apparatus | Performing Operations; Transporting | 215 | Expired |
| US5367324A | Ink jet recording apparatus for ejecting droplets of ink through promotion of capillary action | Performing Operations; Transporting | 86 | Expired |
| US4727380A | Photosensitive printing apparatus | Performing Operations; Transporting | 34 | Expired |
| US5381171A | Ink-jet recording head | Performing Operations; Transporting | 33 | Expired |
| US6799011B2 | Tandem-type color image forming apparatus | Physics | 21 | Expired |
| US4838657A | Liquid crystal shutter | Physics | 17 | Expired |
| US5148185A | Ink jet recording apparatus for ejecting droplets of ink through promotion of capillary action | Performing Operations; Transporting | 16 | Expired |
| US7020415B2 | Image forming apparatus with transfer belt | Physics | 15 | Expired |
| US6907215B2 | Developing device and image forming apparatus incorporating the same | Physics | 15 | Expired |
| US4945381A | Image forming apparatus | Physics | 15 | Expired |
| US6907209B2 | Tandem-type image forming apparatus with a transfer belt | Physics | 15 | Expired |
| US6185380A | Image forming apparatus having independent recording media discharge passages | Physics | 14 | Expired |
| US6865361B2 | Transfer belt unit and image forming apparatus using the same | Physics | 13 | Expired |
| US6078760A | Image forming apparatus having an inverse and re-fixing sub-mode | Physics | 13 | Expired |
| US6515692B2 | Image forming apparatus having writing electrodes as a writing device | Performing Operations; Transporting | 10 | Expired |
| US6618065B2 | Image forming apparatus having a plurality of writing electrodes | Physics | 10 | Expired |
| US5068684A | Image forming device | Physics | 10 | Expired |
| US6829454B2 | Image forming apparatus with improved transfer efficiency | Physics | 9 | Expired |
| US7058345B2 | Transfer belt unit and image forming apparatus using the same | Physics | 9 | Expired |
| US5650807A | Ink jet recording apparatus and method of manufacture | Performing Operations; Transporting | 9 | Expired |
| US9422664B2 | Sheet manufacturing apparatus and defibration unit | Performing Operations; Transporting | 8 | Active |
| US6518990B2 | Image forming apparatus for forming an electrostatic latent image on a latent image carrier | Performing Operations; Transporting | 8 | Expired |
| US5937244A | Image forming apparatus having a flexible cylindrical thin image carrier | Physics | 7 | Expired |
| US6173139A | Recording medium carrier system having a paper feed unit, a transfer unit, a fixing unit and a paper ejecting unit constructed as independent units | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.