Kazuo Murai
17Patents
12h-index
28Co-inventors
74Inventor score
Filing activity: Jan 16, 1981 → Mar 2, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5751854A | Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system | Electricity | 101 | Expired |
| US6272248A | Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system | Physics | 66 | Expired |
| US5032904A | Color image processing apparatus | Electricity | 48 | Expired |
| US5444518A | Image forming apparatus which adds identification information to recorded images to prevent forgery | Electricity | 31 | Expired |
| US4667250A | Halftone digital image processing device | Electricity | 30 | Expired |
| US5475476A | Image density control method for an image recorder | Physics | 29 | Expired |
| US4519695A | Image density control method for electrophotography | Physics | 28 | Expired |
| US4572654A | Image density control method for electrophotography | Physics | 25 | Expired |
| US4962421A | Color image generating apparatus | Electricity | 25 | Expired |
| US4979129A | Digital color converting apparatus for color image processor | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5682572A | Image density control method for an image recorder | Physics | 16 | Expired |
| US4639117A | Recording image density control method for electrophotography | Physics | 13 | Expired |
| US6005673A | Facsimile machine and facsimile communication system | Electricity | 12 | Expired |
| US4933874A | Printer | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5237370A | Image density control method for image recorder | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4353299A | Automatic control system for offset printing machine | Physics | 8 | Expired |
| US4539279A | Image density control method | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.