Naoki Kuwata
96Patents
18h-index
59Co-inventors
87Inventor score
Filing activity: Mar 6, 1989 → Aug 29, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5170274A | Optical transmitter | Physics | 87 | Expired |
| US6081360A | Method and apparatus for optimizing dispersion in an optical fiber transmission line in accordance with an optical signal power level | Electricity | 78 | Expired |
| US6151410A | Image processing apparatus, image processing method and medium for storing image-processing control program | Electricity | 47 | Expired |
| US6351558B1 | Image processing system, image processing method, and medium having an image processing control program recorded thereon | Electricity | 45 | Expired |
| US6535301B1 | Image processing apparatus, image processing method, image processing program recording medium, color adjustment method, color adjustment device, and color adjustment control program recording medium | Electricity | 42 | Expired |
| US6738527B2 | IMAGE PROCESSING APPARATUS, AN IMAGE PROCESSING METHOD, A MEDIUM ON WHICH AN IMAGE PROCESSING CONTROL PROGRAM IS RECORDED, AN IMAGE EVALUATION DEVICE, AND IMAGE EVALUATION METHOD AND A MEDIUM ON WHICH AN IMAGE EVALUATION PROGRAM IS RECORDED | Physics | 31 | Expired |
| US7817923B2 | Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them | Electricity | 27 | Active |
| US6404509B1 | Color correction device | Electricity | 25 | Expired |
| US5764813A | Image processing method and image processing device | Physics | 23 | Expired |
| US6760489B1 | Apparatus and method for image data interpolation and medium on which image data interpolation program is recorded | Physics | 22 | Expired |
| US6937370B1 | Image data processing method, image data print apparatus, record medium recording image data processing program | Electricity | 22 | Expired |
| US6714204B2 | Image processing system | Electricity | 22 | Expired |
| US5808571A | Synchronization control unit which maintains synchronization between serial-to-parallel converters operating in parallel, or between parallel-to-serial converters operating in parallel | Electricity | 21 | Expired |
| US6914628B1 | Image processing apparatus and method, and medium containing image processing control program | Electricity | 21 | Expired |
| US6064236A | Phase detector and timing extracting circuit using phase detector | Electricity | 20 | Expired |
| US5784488A | Image processing method and system | Physics | 20 | Expired |
| US5940524A | Image processing method and image processing device | Physics | 19 | Expired |
| US7441139B2 | Skew adjusting circuit and method for parallel signals | Electricity | 18 | Active |
| US6351546B1 | Image processing method and image processing device | Physics | 18 | Expired |
| US6392759B1 | Edge-enhancement processing apparatus and method, and medium containing edge-enhancement processing program | Physics | 18 | Expired |
| US7375848B2 | Output image adjustment method, apparatus and computer program product for graphics files | Electricity | 17 | Expired |
| US5768441A | Image processing method and apparatus | Physics | 17 | Expired |
| US6947078B1 | Color correction apparatus, color correction method, and recording medium having color correction control program recorded | Electricity | 16 | Expired |
| US7444085B2 | DQPSK optical receiver circuit | Electricity | 16 | Active |
| US6614553B2 | Apparatus and method for image data interpolation and medium on which image data interpolation program is recorded | Physics | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.