Keiichi Sakurai
33Patents
7h-index
26Co-inventors
69Inventor score
Filing activity: Sep 14, 1983 → Mar 25, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5068148A | Diamond-coated tool member, substrate thereof and method for producing same | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5066553A | Surface-coated tool member of tungsten carbide based cemented carbide | Emerging Cross-Sectional Technologies | 35 | Expired |
| US7486310B2 | Imaging apparatus and image processing method therefor | Physics | 15 | Active |
| US7619663B2 | Image processing apparatus for correcting distortion of image and image shooting apparatus for correcting distortion of shot image | Physics | 15 | Active |
| US8009929B2 | Image-capturing apparatus, method, and program which correct distortion of a captured image based on an angle formed between a direction of an image-capturing apparatus and a gravitational direction | Electricity | 9 | Active |
| US4674384A | Electronic musical instrument with automatic accompaniment unit | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7760962B2 | Image capture apparatus which synthesizes a plurality of images obtained by shooting a subject from different directions, to produce an image in which the influence of glare from a light is reduced | Physics | 7 | Active |
| US4710826A | Apparatus with liquid crystal display panel, for recording/playing back television signal by utilizing digital audio tape recorder system | Electricity | 7 | Expired |
| US8111949B2 | Image processing device, image projection apparatus, image processing method, recording medium, and computer data signal | Electricity | 6 | Active |
| US4635519A | Hybrid electronic musical instrument | Physics | 5 | Expired |
| US8036486B2 | Image pickup apparatus | Physics | 5 | Active |
| US4656911A | Automatic rhythm generator for electronic musical instrument | Emerging Cross-Sectional Technologies | 5 | Expired |
| US9018508B2 | Playing apparatus, method, and program recording medium | Physics | 5 | Active |
| US4646610A | Electronic musical instrument with automatic ending accompaniment function | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7607783B2 | Imaging apparatus, image processing apparatus, image processing method of imaging apparatus and computer program | Physics | 4 | Active |
| US8249382B2 | Image-capturing apparatus, image processing method and program product | Physics | 4 | Active |
| US5303091A | Digital audio tape recorder for recording character data with digital data | Physics | 3 | Expired |
| US7791655B2 | Imaging apparatus with function of shading compensation | Electricity | 3 | Active |
| US4643068A | Electronic musical instrument with automatic rhythm playing unit | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7542074B2 | Photographed image projection device which sets a frame frequency of photographing by a camera based on movement in a photographed image | Electricity | 2 | Expired |
| US8125544B2 | Image processing apparatus for extracting quadrangle area in image | Physics | 1 | Active |
| US10203203B2 | Orientation detection device, orientation detection method and program storage medium | Physics | 1 | Active |
| US9058686B2 | Information display system, information display apparatus, information provision apparatus and non-transitory storage medium | Physics | 1 | Active |
| US8817075B2 | Imaging apparatus capable of generating three-dimensional images, three-dimensional image generating method, and recording medium | Electricity | 1 | Active |
| US8195000B2 | Image pickup apparatus | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.