Hiroshi Hosokawa
164Patents
32h-index
263Co-inventors
93Inventor score
Filing activity: Sep 1, 1987 → Feb 29, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4981525A | Photovoltaic device | Emerging Cross-Sectional Technologies | 103 | Expired |
| US7321744B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 89 | Expired |
| US7480476B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 86 | Active |
| US4878125A | Method and apparatus for image processing with fed-back error correction | Physics | 72 | Expired |
| US5580473A | Methods of removing semiconductor film with energy beams | Emerging Cross-Sectional Technologies | 71 | Expired |
| US7519317B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 62 | Active |
| US8005406B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 59 | Active |
| US7835673B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 56 | Active |
| US6212343A | Developing device, process cartridge and image forming apparatus that prevent toner leakage | Physics | 56 | Expired |
| US4876610A | Image processing apparatus with binarization-error dispersal | Physics | 55 | Expired |
| US7697870B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 53 | Active |
| US5489747A | Developing device for an image forming apparatus | Physics | 50 | Expired |
| US5617191A | Toner conveyor roller and image forming apparatus having the same | Physics | 50 | Expired |
| US6163666A | Process cartridge and an image forming apparatus using the same process cartridge and a method of manufacturing the same process cartridge | Physics | 50 | Expired |
| US8195070B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 47 | Active |
| US5482265A | Sheet feeder for an image forming apparatus | Physics | 45 | Expired |
| US5826144A | Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller | Physics | 43 | Expired |
| US4875063A | Electrostatic recording apparatus | Physics | 42 | Expired |
| US5625440A | Developing device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scattering | Physics | 42 | Expired |
| US5697026A | Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships | Physics | 40 | Expired |
| US5215820A | Metal-electroconductive polymer composite fine particles and method for preparing same | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5689782A | Developing apparatus for electronic photographic recording equipment, having two developer transfer rollers | Physics | 39 | Expired |
| US5666625A | Device for electrostatically developing a latent image on an image carrier | Physics | 38 | Expired |
| US5708942A | Developing device for an image forming apparatus | Physics | 37 | Expired |
| US5625441A | Developing device for an image forming apparatus | Physics | 36 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.