Kimio Nakahata
46Patents
20h-index
74Co-inventors
88Inventor score
Filing activity: Oct 7, 1975 → Apr 30, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5438398A | Image forming apparatus with intermediate transfer member | Physics | 49 | Expired |
| US5084733A | Developing apparatus having developer layer regulation means | Physics | 48 | Expired |
| US4989044A | Developing apparatus for developing electrostatic latent images | Physics | 48 | Expired |
| US5450180A | Image forming apparatus having constant current and voltage control in the charging and transfer regions | Physics | 47 | Expired |
| US5179397A | Image forming apparatus with constant voltage and constant current control | Physics | 45 | Expired |
| US4958187A | Image forming apparatus for scanning both sides of an original and producing a duplex copy | Electricity | 37 | Expired |
| US5253024A | Fixing apparatus with rectifier element | Physics | 32 | Expired |
| US5034777A | Transferring device having charging device with double oxide and voltage control | Physics | 31 | Expired |
| US4610531A | Developing method and apparatus | Physics | 31 | Expired |
| US4385829A | Image developing method and device therefor | Performing Operations; Transporting | 29 | Expired |
| US5010370A | Transfer apparatus and image bearing apparatus using same having transfer means for contacting a backside of a transfer material | Physics | 29 | Expired |
| US4030447A | Developing device | Physics | 28 | Expired |
| US4557582A | Magnet roll | Physics | 27 | Expired |
| US4341457A | Electrophotographic apparatus including an electrostatic separation device | Physics | 26 | Expired |
| US4739363A | Image forming apparatus | Performing Operations; Transporting | 24 | Expired |
| US4860048A | Image forming apparatus | Physics | 24 | Expired |
| US4368971A | Developing device | Physics | 24 | Expired |
| US4380966A | Development apparatus | Chemistry; Metallurgy | 23 | Expired |
| US5159393A | Image forming apparatus having transfer device and image bearing member traveling at different speeds | Physics | 22 | Expired |
| US4669852A | Developing apparatus | Physics | 20 | Expired |
| US5151736A | Image forming apparatus with controlled transfer voltage | Physics | 20 | Expired |
| US4637706A | Developer thin layer forming apparatus | Physics | 18 | Expired |
| US4563978A | Developing apparatus | Physics | 17 | Expired |
| US4559899A | Thin developer layer forming device | Physics | 17 | Expired |
| US4660958A | Developing apparatus | Physics | 16 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.