Kiyonori Yamamoto
26Patents
8h-index
35Co-inventors
75Inventor score
Filing activity: Sep 29, 1982 → Mar 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4607734A | Power transmitting device in a copying machine | Mechanical Engineering; Lighting; Heating | 92 | Expired |
| US4530588A | Mount for a rotating drum and a developer within an electrostatic copying apparatus | Physics | 32 | Expired |
| US6543759B2 | Paper feeder for use in image forming apparatus | Performing Operations; Transporting | 21 | Expired |
| US6412769B1 | Paper feeder | Performing Operations; Transporting | 14 | Expired |
| US5517294A | Image-forming machine equipped with cleaning means | Physics | 13 | Expired |
| US4861017A | Paper-feeding device | Physics | 12 | Expired |
| US7356302B2 | Paper supply device and image forming device equipped with same | Physics | 9 | Expired |
| US4533233A | Electrostatic copying apparatus | Physics | 8 | Expired |
| US8857812B2 | Sheet feeder having manual feed tray, and image forming apparatus including the same | Performing Operations; Transporting | 7 | Active |
| US7831173B2 | Image forming apparatus and image bearing member cover | Physics | 7 | Active |
| US4602864A | Cleaning device in electrostatic copying apparatus | Physics | 5 | Expired |
| US9290340B2 | Sheet conveying apparatus and image forming apparatus provided with same | Physics | 4 | Active |
| US4487497A | Optical device in variable magnification electrostatic copying apparatus | Physics | 4 | Expired |
| US9309066B2 | Sheet feeding device, and image reading device and image forming apparatus including this | Performing Operations; Transporting | 3 | Active |
| US8342504B2 | Image forming apparatus with common support shaft | Performing Operations; Transporting | 3 | Active |
| US6595511B2 | Paper feeder | Performing Operations; Transporting | 2 | Expired |
| US8534664B2 | Image forming apparatus and feed mechanism | Performing Operations; Transporting | 2 | Active |
| US9836011B2 | Image forming apparatus including driving lever switching driven unit into transmission state and transmission release state | Physics | 1 | Active |
| US6430388B1 | Image forming machine having finisher for different length sheets | Physics | 1 | Expired |
| US7623359B2 | Assembly having a structure for clamping the harnesses and image-forming machine | Electricity | 1 | Active |
| US9791824B2 | Image forming apparatus | Physics | 0 | Active |
| US11067945B2 | Image forming apparatus including sheet feeding cassette and conveyance unit attachable and detachable to and from apparatus main body | Physics | 0 | Active |
| US9958822B2 | Electrical connecting member and image forming apparatus | Electricity | 0 | Active |
| US11279579B2 | Sheet feed device and image formation device equipped with same | Physics | 0 | Active |
| US9045300B2 | Image forming apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.