Akio Hashima
8Patents
5h-index
6Co-inventors
48Inventor score
Filing activity: Sep 24, 1979 → Apr 12, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4695900A | Magnetic recording and playback apparatus for teletext signals | Electricity | 15 | Expired |
| US4605974A | Magnetic recording and reproducing apparatus | Physics | 11 | Expired |
| US4698694A | Video signal processing apparatus for video tape recorders | Electricity | 10 | Expired |
| US4677487A | Digital noise reducing apparatus for a video signal processing recording reproducing apparatus | Electricity | 7 | Expired |
| US4686583A | Dropout compensating apparatus using a digital delay circuit | Electricity | 6 | Expired |
| US4691247A | Video signal recording/reproducing apparatus | Electricity | 4 | Expired |
| US4320533A | Frequency stabilized downconverter facilitating output frequency alteration | Electricity | 4 | Expired |
| US4630251A | Video disc reproducing apparatus | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.