Hareo Hamada
11Patents
8h-index
28Co-inventors
72Inventor score
Filing activity: Jan 12, 1987 → Nov 20, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5018202A | Electronic noise attenuation system | Physics | 79 | Expired |
| US5862227A | Sound recording and reproduction systems | Electricity | 67 | Expired |
| US4783817A | Electronic noise attenuation system | Physics | 54 | Expired |
| US5949894A | Adaptive audio systems and sound reproduction systems | Electricity | 47 | Expired |
| US6760447B1 | Sound recording and reproduction systems | Electricity | 16 | Expired |
| US5295192A | Electronic noise attenuation method and apparatus for use in effecting such method | Physics | 13 | Expired |
| US7072474B2 | Sound recording and reproduction systems | Electricity | 11 | Expired |
| US7920711B2 | Audio device and method for generating surround sound having first and second surround signal generation units | Electricity | 9 | Active |
| US7664270B2 | 3D audio signal processing system using rigid sphere and method thereof | Electricity | 2 | Active |
| US7650000B2 | Audio device and playback program for the same | Electricity | 2 | Expired |
| US8116479B2 | Sound collection/reproduction method and device | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.