Hitoshi Ogatsu
30Patents
13h-index
27Co-inventors
81Inventor score
Filing activity: Apr 8, 1993 → Nov 18, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5724442A | Apparatus for processing input color image data to generate output color image data within an output color reproduction range | Electricity | 80 | Expired |
| US5729360A | Color image processing method and system | Electricity | 59 | Expired |
| US6724507B1 | Image processing method and image processing apparatus | Electricity | 51 | Expired |
| US6128407A | Image processing apparatus, image processing method, and image processing system | Physics | 41 | Expired |
| US5636290A | Color image processing | Physics | 41 | Expired |
| US5719956A | Image processing apparatus with separate color conversion for CMY signals and K signal | Electricity | 34 | Expired |
| US5502579A | Color image processing method and apparatus capable of adjusting the UCR ratio | Electricity | 29 | Expired |
| US6650772B1 | Image processing apparatus, image processing method, and image processing system | Physics | 29 | Expired |
| US5331440A | Color image processing method and apparatus capable of properly determining black quantity | Electricity | 26 | Expired |
| US5764795A | Color image processing apparatus for color matching and color matching processing method | Electricity | 24 | Expired |
| US5978107A | Method and apparatus for determining color transformation coefficients | Electricity | 23 | Expired |
| US6035065A | Image processing coefficient determination method, image processing coefficient calculation system, image processing system, image processing method, and storage medium | Physics | 18 | Expired |
| US7199900B2 | Color conversion coefficient preparation apparatus, color conversion coefficient preparation method, storage medium, and color conversion system | Performing Operations; Transporting | 17 | Expired |
| US6546130B1 | Image processing apparatus, image processing method, and image processing system | Physics | 12 | Expired |
| US7333237B2 | Color adjustment method, color adjustment apparatus, color conversion definition editing apparatus, image processing apparatus, program, and storage medium | Electricity | 12 | Expired |
| US7307753B2 | Color processing method, color processing device, storage medium, color processing program, and image forming apparatus | Electricity | 12 | Expired |
| US6130675A | Color image formation method and color image formation apparatus | Electricity | 9 | Expired |
| US6885382B1 | Image processing device, image processing system, output device, computer readable recording medium and image processing method | Electricity | 7 | Expired |
| US6172776A | Method and apparatus for processing a color image | Electricity | 5 | Expired |
| US7304767B2 | Color processing method, storage medium, color processing apparatus, color transforming apparatus, and image forming apparatus | Electricity | 5 | Expired |
| US6091520A | Color image forming device | Electricity | 3 | Expired |
| US7431210B2 | Image forming apparatus, image processing apparatus and method | Electricity | 3 | Active |
| US7061505B2 | Image processing device, image processing system, output device, computer readable recording medium and image processing method | Electricity | 3 | Expired |
| US7675659B2 | Image processing apparatus, table generation apparatus, and image forming system | Electricity | 2 | Active |
| US8553047B2 | Image information processing system, image information processing apparatus, image information outputting method, code information processing apparatus and program thereof | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.