Hiroshi Murasaki
36Patents
16h-index
37Co-inventors
81Inventor score
Filing activity: May 28, 1975 → Jul 28, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3985436A | Electrophotographic copying apparatus | Physics | 119 | Expired |
| US4116556A | Electrophotographic copying apparatus | Physics | 31 | Expired |
| US5012285A | Developing apparatus including a partitioning arrangement for partitioning the toner accommodating tank | Physics | 27 | Expired |
| US4786936A | Electrostatic latent image developing device | Physics | 27 | Expired |
| US4001545A | Devices for controlling the heating of fuser roll apparatus | Physics | 27 | Expired |
| US3998584A | Electrophotographic fusing apparatus | Physics | 25 | Expired |
| US4334766A | Blade-type cleaning device for electrophotograhic copying machine | Physics | 24 | Expired |
| US4436406A | Paper feeder for recording apparatus | Performing Operations; Transporting | 24 | Expired |
| US4920916A | Electrostatic latent image developing device | Physics | 23 | Expired |
| US4008954A | Device for extinguishing unnecessary electrostatic charge in electrophotographic copier | Physics | 22 | Expired |
| US5307128A | Toner supplying device | Physics | 21 | Expired |
| US4809034A | Developing device | Physics | 21 | Expired |
| US4987452A | Developing apparatus provided with a chamber for controlling toner grain diameter | Physics | 21 | Expired |
| US6038415A | Image forming apparatus and image-carrier cartridge device which is employed in the same | Physics | 20 | Expired |
| US4284345A | Blade-type cleaning device for electrophotographic copying machine | Physics | 18 | Expired |
| US4277165A | Photocopying machine equipped with variable magnification arrangement | Physics | 18 | Expired |
| US4851872A | Developing device with developer sleeve facilitating developer supply adjustment by bristle height regulating member | Physics | 15 | Expired |
| US5499090A | Image forming apparatus having a toner recycling mechanism | Physics | 15 | Expired |
| US4396276A | Electronic copying machine | Physics | 14 | Expired |
| US4038026A | Electrophotographic fusing apparatus | Physics | 14 | Expired |
| US4230070A | Device for automatically replenishing toner to dry-type developing apparatus for electrophotography | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4947212A | Developing apparatus with color dependent toner supply voltage | Physics | 10 | Expired |
| US4417365A | Cleaning apparatus | Physics | 10 | Expired |
| US3981575A | Photocopier illumination device | Physics | 10 | Expired |
| US4912511A | Developing device capable of preventing a developer from passing through the space between adjacent developing sleeves | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.