Hiroki Kisu
23Patents
13h-index
44Co-inventors
77Inventor score
Filing activity: Jul 17, 1985 → Mar 28, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5430526A | Image forming apparatus having weighting material in image bearing member and process cartridge usable with same | Physics | 62 | Expired |
| US5126913A | Charging device with contactable charging means and an image forming apparatus having the charging means and a detachable process unit | Physics | 53 | Expired |
| US5253022A | Image forming apparatus | Physics | 50 | Expired |
| US5132738A | Image forming apparatus with cleaning mechanism for charging electrode | Physics | 39 | Expired |
| US5146280A | Charging device | Physics | 35 | Expired |
| US5519472A | Developing apparatus using elastic blade | Physics | 34 | Expired |
| US5475471A | Changing member having a charging surface arranged with respect to a tangent line | Physics | 32 | Expired |
| US5534344A | Charging member having a loosely supported charger portion | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5881349A | Image induction heating apparatus | Electricity | 30 | Expired |
| US5420671A | Charger and image forming apparatus with same | Physics | 27 | Expired |
| US4674865A | Cleaning device | Physics | 24 | Expired |
| US6014539A | Image heating device | Physics | 22 | Expired |
| US5715499A | Contact charger having an oscillating voltage for charging a photosensitive member | Physics | 17 | Expired |
| US5541711A | Charging member having a cavity, charging device, process unit, and image forming apparatus having such a charging member | Physics | 13 | Expired |
| US5146281A | Image forming apparatus having charging means | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5177534A | Image forming apparatus with contact-type charge means | Physics | 12 | Expired |
| US5546167A | Charging device, process cartridge and image forming apparatus | Physics | 10 | Expired |
| US5678141A | Charging apparatus and process cartridge | Physics | 9 | Expired |
| US5440374A | Charging device, image forming apparatus and process cartridge detachably mountable to image forming apparatus | Physics | 8 | Expired |
| US5799233A | Charging apparatus and image forming apparatus | Physics | 7 | Expired |
| US6760051B2 | Image forming apparatus with switching elements | Physics | 6 | Expired |
| US7622375B2 | Conductive member and process of producing the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6897840B2 | Display apparatus | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.