Masato Yanagida
34Patents
13h-index
57Co-inventors
80Inventor score
Filing activity: May 9, 1989 → Mar 13, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5775918A | System for making examination papers and having an automatic marking function | Physics | 31 | Expired |
| US4984024A | Image transfer unit for image recording apparatus | Physics | 27 | Expired |
| US5597311A | System for making examination papers and having an automatic marking function | Physics | 24 | Expired |
| US5881339A | Image forming apparatus having a cleaning blade for removing deposited toner | Physics | 23 | Expired |
| US5970282A | Method of cleaning a surface in an image forming apparatus by feeding toner to the surface | Physics | 21 | Expired |
| US7062194B2 | Charging device, and process cartridge and image forming apparatus including the charging device | Physics | 18 | Expired |
| US5396319A | Cleaning device for an image forming apparatus | Physics | 18 | Expired |
| US7110696B2 | Cleaning unit, process cartridge, and image forming apparatus | Physics | 16 | Expired |
| US7272354B2 | Cleaning unit and image forming apparatus having multiple cleaning blades | Physics | 14 | Expired |
| US6032006A | Image forming apparatus having an improved cleaning mechanism and method thereof | Physics | 14 | Expired |
| US7139504B2 | Charging device, and process cartridge and image forming apparatus using the charging device | Physics | 14 | Expired |
| US7149465B2 | Cleaning unit, process cartridge, image forming apparatus, and toner | Physics | 14 | Expired |
| US6023342A | Image processing device which transfers scanned sheets to a printing region | Electricity | 13 | Expired |
| US6539189B2 | Image bearing member rotation control device, and image forming apparatus and method using the image bearing member rotation control device | Physics | 13 | Expired |
| US7295796B1 | Image forming apparatus having a temporary toner holding device and a toner collecting device | Physics | 13 | Expired |
| US7228099B2 | Cleaning device for cleaning a surface of an image support body | Physics | 12 | Expired |
| US5184184A | Image forming apparatus | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7050741B2 | Imaging apparatus, and toner and process cartridge used in the imaging apparatus | Physics | 11 | Expired |
| US7826786B2 | Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner | Physics | 11 | Active |
| US6665512B1 | Image forming apparatus | Physics | 10 | Expired |
| US7266324B2 | Charging device, and process cartridge and image forming apparatus using the charging device | Physics | 10 | Active |
| US5600428A | Sheet separator for an image forming apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7542712B2 | Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridge | Physics | 9 | Active |
| US7430377B2 | Image forming apparatus and process cartridge having a detachable unit body having a lubricant applying unit and image carrier mounted thereon | Physics | 8 | Expired |
| US7218877B2 | Charging device, and process cartridge and image forming apparatus including the charging device using the same | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.