Hiroyasu Sumida
13Patents
9h-index
40Co-inventors
72Inventor score
Filing activity: Feb 12, 1988 → Dec 14, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5383754A | Image forming apparatus having an image orientation identifying device and a binding device | Physics | 110 | Expired |
| 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 |
| US5987227A | Image forming apparatus and method for detecting and eliminating avoidable image reading operations | Electricity | 37 | Expired |
| US6226102A | Image forming apparatus which forms an image based on stored image data | Electricity | 20 | Expired |
| US5550623A | Digital copying machine having selective paper feed based on copy productivity | Electricity | 19 | Expired |
| US4980725A | Background accenuating image forming apparatus | Physics | 18 | Expired |
| US5877864A | Image forming apparatus which determines if memory will overflow before reading an image to store in the memory | Electricity | 11 | Expired |
| US5049932A | Copier having an editing function | Physics | 9 | Expired |
| US4881101A | Device for setting operation modes of office equipment | Physics | 6 | Expired |
| US4851878A | Copy information output device for a copier | Physics | 5 | Expired |
| US11099200B2 | Pretreatment apparatus and pretreatment method | Physics | 0 | Active |
| US11061040B2 | Pretreatment apparatus and pretreatment method | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.