Keiichi Katayanagi
2Patents
2h-index
2Co-inventors
24Inventor score
Filing activity: Aug 12, 1996 → Aug 14, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5732390A | Speech signal transmitting and receiving apparatus with noise sensitive volume control | Physics | 277 | Expired |
| US5687285A | Noise reducing method, noise reducing apparatus and telephone set | Physics | 23 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.