Takashi Numakura
14Patents
7h-index
3Co-inventors
51Inventor score
Filing activity: Mar 9, 1988 → May 22, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5072305A | Picture producing apparatus using picture information values correlated to light intensities in tonal conversion formula | Electricity | 26 | Expired |
| US4811108A | Tonal conversion method for pictures | Electricity | 25 | Expired |
| US4956718A | Tonal conversion method for pictures | Electricity | 23 | Expired |
| US4924323A | Tonal conversion method for pictures | Electricity | 23 | Expired |
| US4833546A | Photomechanical apparatus | Electricity | 15 | Expired |
| US5841897A | Method for the tonal control or adjustment of reproduced color image and picture producing system making use of said method | Electricity | 12 | Expired |
| US5057931A | Tonal conversion method of pictures for producing reproduced pictures free of color-fog | Electricity | 11 | Expired |
| US5406394A | Color reproducing method used in an image data processing system comprising independent input and output devices | Electricity | 6 | Expired |
| US5212518A | Tonal conversion method for a faded color photographic original picture | Electricity | 5 | Expired |
| US5313310A | Tonal conversion method for pictures | Electricity | 4 | Expired |
| US5371616A | Tonal conversion method of a picture | Electricity | 4 | Expired |
| US5134494A | Method for producing color and black plates in a multi-color plate making apparatus | Electricity | 3 | Expired |
| US5014120A | Method for processing picture to be reproduced on color picture tube and processor therefor | Electricity | 2 | Expired |
| US5357349A | Tonal conversion method for a picture | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.