Shoji Hiraoka
5Patents
4h-index
7Co-inventors
46Inventor score
Filing activity: Nov 14, 1980 → Jun 11, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5345536A | Method of speech recognition | Physics | 256 | Expired |
| US5309547A | Method of speech recognition | Physics | 16 | Expired |
| US4412099A | Sound synthesizing apparatus | Physics | 8 | Expired |
| US4367441A | Method and circuit arrangement for shaping a signal waveform | Electricity | 4 | Expired |
| US4389539A | Digital filter for performing serial operations and vocal sound synthesizing apparatus having the digital filter | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.