Chikara Imai
23Patents
13h-index
47Co-inventors
81Inventor score
Filing activity: Mar 9, 1978 → Oct 5, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5394231A | Image forming apparatus capable of forming an erasable image | Physics | 65 | Expired |
| US4200391A | Electrostatographic apparatus comprising document density sensing means | Physics | 45 | Expired |
| US6597884B2 | Image forming apparatus including electrostatic conveyance of charged toner | Physics | 41 | Expired |
| US4619522A | Dual mode image density controlling method | Physics | 34 | Expired |
| US5864733A | Developing device for image forming apparatus | Physics | 31 | Expired |
| US4975748A | Method of removing a film from an image carrier | Physics | 30 | Expired |
| US4277549A | Copy image adjustment method | Physics | 26 | Expired |
| US4330749A | Electrometer apparatus | Physics | 21 | Expired |
| US4910557A | Image density control method for an image forming apparatus | Physics | 20 | Expired |
| US4279498A | Electrostatographic copying apparatus with automatic toner density control | Physics | 19 | Expired |
| US4474455A | Electrophotographic copying process and apparatus having means for monitoring a fatigue recovery time | Physics | 17 | Expired |
| US4318042A | Electrometer probe | Physics | 16 | Expired |
| US5003354A | Method of removing a film from an image carrier of an image forming apparatus | Physics | 16 | Expired |
| US4508446A | Reproduction process control method | Physics | 13 | Expired |
| US4522481A | Toner supply control method for electrophotographic copier | Physics | 12 | Expired |
| US4632537A | Electrophotographic apparatus | Physics | 12 | Expired |
| US4213693A | Electrostatographic apparatus comprising improved developing bias control | Physics | 11 | Expired |
| US6708015B2 | Developing device and image forming apparatus using the same | Physics | 9 | Expired |
| US5258248A | Image density control method for an image forming apparatus | Physics | 7 | Expired |
| US4266870A | Electrostatographic apparatus comprising developing bias means | Physics | 5 | Expired |
| US4487501A | Process of exposing photosensitive member | Physics | 4 | Expired |
| US7079798B2 | Toner transfer back suppressing color image forming apparatus | Physics | 4 | Expired |
| US4191568A | Photosensitive material for electrophotography with dye containing overlayer | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.