Zenju Otsuki
5Patents
5h-index
3Co-inventors
45Inventor score
Filing activity: Jul 19, 1982 → Apr 27, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4665494A | Spectrum display device for audio signals | Physics | 49 | Expired |
| US4546690A | Apparatus for displaying musical notes indicative of pitch and time value | Physics | 16 | Expired |
| US4559569A | Circuit arrangement for correcting frequency response in accordance with frequency response of a sound field | Electricity | 12 | Expired |
| US4510840A | Musical note display device | Physics | 12 | Expired |
| US4504870A | Automatic level adjustment with means for minimizing drop-out effects | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.