Hiroshi Mizusawa
25Patents
10h-index
60Co-inventors
78Inventor score
Filing activity: Aug 17, 1998 → Apr 13, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6085062A | Electrophotographic image forming apparatus | Physics | 53 | Expired |
| US6266501A | Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal | Physics | 50 | Expired |
| US6128449A | Image forming apparatus and method for controlling charging and developing bias voltage | Physics | 37 | Expired |
| US6144811A | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Physics | 35 | Expired |
| US6144822A | Image forming apparatus having detachable transfer roller and discharge device | Physics | 34 | Expired |
| US6148161A | Image forming apparatus with improved toner density control | Physics | 33 | Expired |
| US6160969A | Image forming apparatus with a voltage applying unit for image transfer | Physics | 32 | Expired |
| US6628903B1 | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Physics | 28 | Expired |
| US6807390B2 | Image forming apparatus | Physics | 20 | Expired |
| US7313347B2 | Cleaning device, process cartridge, image forming apparatus and toner | Physics | 18 | Expired |
| US6898383B2 | Image forming apparatus | Physics | 10 | Expired |
| US7177555B2 | Image forming process and image forming apparatus | Physics | 10 | Expired |
| US10514651B1 | Cleaning blade, cleaning device, image forming apparatus, and process cartridge | Physics | 5 | Active |
| USD750702S1 | Powder container | General | 4 | Active |
| US7068960B2 | Cleaning device including brush roller with high cleaning performance, image forming apparatus and process unit including the cleaning device, method of removing deposit, and method of forming an image | Physics | 2 | Expired |
| US7139503B2 | Cleaning apparatus with conductive member | Physics | 2 | Expired |
| US10018941B2 | Cleaning device, and image forming apparatus and process unit incorporating same | Physics | 1 | Active |
| US12312119B2 | Feeding device and image forming apparatus | Performing Operations; Transporting | 0 | Active |
| US9983512B2 | Toner conveyance device and image forming apparatus | Physics | 0 | Active |
| US8543029B2 | Image forming apparatus, image forming method, and process cartridge for adjusting applications of lubricants | Physics | 0 | Active |
| US9031456B2 | Image forming apparatus, detachable unit, and plural detachable units | Physics | 0 | Active |
| US8472856B2 | Image forming apparatus | Physics | 0 | Active |
| US8588672B2 | Lubricant applicator, process cartridge, transfer unit, and image forming apparatus | Physics | 0 | Active |
| US9753426B2 | Image bearer protective agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge | Physics | 0 | Active |
| US9405227B2 | Powder conveying device, process cartridge, and image forming apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.