Keizo Nishimura
50Patents
13h-index
40Co-inventors
84Inventor score
Filing activity: Aug 3, 1979 → Jan 30, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4907081A | Compression and coding device for video signals | Electricity | 66 | Expired |
| US5636316A | Picture signal digital processing unit | Electricity | 50 | Expired |
| US4541091A | Code error detection and correction method and apparatus | Electricity | 47 | Expired |
| US5247523A | Code error correction apparatus | Electricity | 34 | Expired |
| US5337199A | Digital transmission signal processing system and recording/reproducing system | Electricity | 33 | Expired |
| US4423498A | Control apparatus for a recording medium drive motor in a digital information reproducing apparatus | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4677622A | Error correction method and system | Physics | 23 | Expired |
| US5897218A | Signal recording/reproducing method and apparatus in which key information for descrambling is recorded in an area on the signal recording medium | Electricity | 21 | Expired |
| US5825969A | Information management apparatus for inhibiting reproduction in a video cassette recorder | Electricity | 18 | Expired |
| US4539605A | PCM Tape recording and reproducing apparatus having a dropout-immune data recording format | Physics | 15 | Expired |
| US4649542A | Digital signal transmission method providing high error correction capability | Physics | 14 | Expired |
| US4472686A | Circuit for reproducing and demodulating modulated digital signals | Electricity | 14 | Expired |
| US5757824A | Code error correction apparatus | Electricity | 13 | Expired |
| US4577319A | Error flag processor | Physics | 12 | Expired |
| US4614934A | Digital-to-analog converter device for processing PCM signals of different sampling frequencies | Electricity | 10 | Expired |
| US4238770A | Vertical synchronizing signal detector circuit | Electricity | 10 | Expired |
| US4363039A | Automatic operation control apparatus for a PCM recording and reproducing system | Physics | 7 | Expired |
| US5530598A | Digital transmission signal processing system and recording/reproducing system | Electricity | 7 | Expired |
| US5463505A | Helical-scan information recording-playback apparatus | Physics | 7 | Expired |
| US5517368A | Digital transmission signal processing system and recording/reproducing system | Electricity | 6 | Expired |
| US6204985A | Information management apparatus | Electricity | 5 | Expired |
| US5027209A | Interpolation circuit for digital signal processor | Electricity | 5 | Expired |
| USD593261S1 | Horse stirrup | General | 5 | Expired |
| US5671095A | Digital transmission signal processing system and recording/reproducing system | Electricity | 4 | Expired |
| US5862004A | Digital transmission signal processing system and recording/reproducing system | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.