Jitsuo Masuda
22Patents
10h-index
58Co-inventors
74Inventor score
Filing activity: Apr 22, 1988 → Oct 27, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4970557A | Electrophotographic apparatus controlling image quality according to condition of deterioration | Physics | 32 | Expired |
| US6389260B1 | Tandem type color image forming device | Physics | 32 | Expired |
| US5333037A | Image-quality stabilizer for an electrophotographic apparatus | Physics | 21 | Expired |
| US5839018A | Toner density control for an image forming apparatus | Physics | 20 | Expired |
| US6035168A | Developing device having a reduced width in the horizontal direction | Physics | 17 | Expired |
| US4935777A | Method of stabilizing surface potential of photoreceptor for electrophotography | Physics | 12 | Expired |
| US5708915A | Image-quality stabilizer for use in an electrophotographic apparatus | Physics | 12 | Expired |
| US6353720B1 | Image developing device using a toner as a developer | Physics | 12 | Expired |
| US5826136A | Image stabilizing method for use in an image forming apparatus | Physics | 11 | Expired |
| US5923922A | Image forming apparatus with flying toner detecting device | Physics | 11 | Expired |
| US6308018A | Image forming apparatus | Physics | 8 | Expired |
| US5734948A | Image stabilizer | Physics | 8 | Expired |
| US5381212A | Photoreceptor for electrophotography | Physics | 8 | Expired |
| US6405009B1 | Image forming apparatus including system for recycling toner | Physics | 8 | Expired |
| US6678482B2 | Image forming apparatus and method for determining suitability of replaceable component | Physics | 7 | Expired |
| US6459867B2 | Developing apparatus | Physics | 6 | Expired |
| US6339686B2 | Developer unit with cleaning element | Physics | 6 | Expired |
| US5923920A | Image forming apparatus for controlling processing conditions in image forming process by detection of tiner patch density formed on photoreceptor surface | Physics | 6 | Expired |
| US5133283A | Developer unit | Physics | 5 | Expired |
| US4962408A | Device for removing defective developer agent from a developing unit of an image formation apparatus | Physics | 4 | Expired |
| US7729653B2 | Image forming apparatus capable of cleaning a photoreceptor, method for cleaning a photoreceptor, and computer program for causing an image forming apparatus to clean a photoreceptor | Physics | 2 | Active |
| US7257336B2 | Developing device, image forming device equipped therewith, and developing density adjusting method | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.