Takehiro Sugita
73Patents
18h-index
35Co-inventors
84Inventor score
Filing activity: Dec 13, 1983 → May 31, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6876850B2 | Communication apparatus and communication method | Electricity | 671 | Expired |
| US6101381A | Telecommunication system, radio base station thereof, and portable telecommunication terminal thereof | Electricity | 129 | Expired |
| US5852767A | Radio communication system and communication terminal equipments thereof | Electricity | 77 | Expired |
| US5757766A | Transmitter and receiver for orthogonal frequency division multiplexing signal | Electricity | 76 | Expired |
| US8406316B2 | Information processing apparatus and mode switching method | Emerging Cross-Sectional Technologies | 65 | Active |
| US6041124A | Radio communication system and method and mobile communication terminal device | Electricity | 55 | Expired |
| US6515960B1 | Radio communication system | Electricity | 48 | Expired |
| US6693891B1 | Communication control method and transmission unit | Electricity | 47 | Expired |
| US6545999B1 | Wireless communicating method, wireless communicating system, communicating station, and controlling station | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5644590A | Spread spectrum communication apparatus and signal intensity detection apparatus | Electricity | 43 | Expired |
| US6112008A | Duplication control system using two differently generated control signals superimposed on the information signal | Electricity | 31 | Expired |
| US5812543A | Mobile communication method and system | Emerging Cross-Sectional Technologies | 31 | Expired |
| US8422482B2 | Space-diversity wireless image communication system | Electricity | 29 | Active |
| US5862172A | Spread spectrum communication system and its transmitter and receiver | Electricity | 27 | Expired |
| US5708658A | Communication terminal | Electricity | 24 | Expired |
| US6058243A | Video duplication control system, video playback device, video recording device, information superimposing and extracting device, and video recording medium | Electricity | 21 | Expired |
| US6542494B1 | Communication control method and transmission apparatus | Electricity | 21 | Expired |
| US4683586A | Scrambling system for an audio frequency signal | Electricity | 19 | Expired |
| US6023551A | Information signal reproduction control system | Electricity | 18 | Expired |
| US5910964A | Code detection apparatus | Electricity | 18 | Expired |
| US6564048B1 | Radio communication system and method and mobile communication terminal device | Electricity | 18 | Expired |
| US5699380A | Spread spectrum communication terminal apparatus in CDMA cellular telephone system | Electricity | 16 | Expired |
| US6804209B1 | Wireless communication control method and wireless transmission apparatus | Electricity | 15 | Expired |
| US6411664B1 | Correlation detecting apparatus, its detecting method and communication apparatus and its communication method | Electricity | 14 | Expired |
| US6430172B1 | Radio communication system, transmitting apparatus, radio communication control apparatus, receiving apparatus, and radio communication method | Electricity | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.