Ichiro Hamada
44Patents
11h-index
35Co-inventors
75Inventor score
Filing activity: May 21, 1991 → Oct 15, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6931198B1 | Apparatus and method for downloading desired data signal to user-selectable storage unit | Electricity | 147 | Expired |
| US6172989A | Transmitting apparatus and method, receiving apparatus and method | Electricity | 81 | Expired |
| US6978377B1 | Copy protection using detailed copy control information | Electricity | 56 | Expired |
| US6792007B1 | Data transmission apparatus and method, data receiving apparatus and method, and data transmission and reception system and method | Electricity | 36 | Expired |
| US5790876A | Power saving control system and method for use with serially connected electronic devices | Physics | 28 | Expired |
| USD426482S | Fire detector | General | 24 | Expired |
| US6370322B2 | Data decoding system, data decoding method, transmission method, transmission device, receiving device, and receiving method | Electricity | 19 | Expired |
| US6754347B1 | Input/output unit, input/output method, and receiving unit | Electricity | 16 | Expired |
| US6300876A | Fire detector | Physics | 15 | Expired |
| USD450008S | Fire detector | General | 14 | Expired |
| US6792000B1 | Data processing apparatus and data processing method, and recording medium | Electricity | 11 | Expired |
| US8854434B2 | Transmission device, receiving device, program, and communication system | Electricity | 11 | Active |
| US7096461B1 | Method and apparatus for digital signal processing and method of providing extension function | Electricity | 11 | Expired |
| US7310810B1 | Broadcasting apparatus and method, receiving apparatus and method, and medium | Physics | 9 | Expired |
| US7904928B2 | Content delivery system, content delivery apparatus, content recording and reproduction apparatus and content recording and reproduction method, and computer program | Electricity | 8 | Active |
| US6981272B1 | Data processing apparatus and method for preventing unauthorized copying | Electricity | 8 | Expired |
| US6671290B1 | Receiving apparatus and recording/reproducing system for digital broadcasts | Electricity | 7 | Expired |
| US7043138B1 | Broadcast receiver and system for performing copy prohibition and timed recording | Electricity | 6 | Expired |
| US7844991B1 | Method and apparatus for digital signal processing | Electricity | 5 | Expired |
| US5206910A | Stereo microphone unit | Electricity | 5 | Expired |
| US5944827A | Power saving control system and method for use with serially connected electronic devices | Physics | 5 | Expired |
| US6650659B1 | Data transmitting method | Electricity | 4 | Expired |
| US7908639B2 | Information transfer apparatus and method, information processing apparatus and method, and information processing system | Electricity | 4 | Active |
| US7031781B1 | Recording apparatus, recording method and recording medium | Physics | 4 | Expired |
| US7023991B1 | Method and apparatus for digital signal processing | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.