Seiji Hagiwara
8Patents
6h-index
6Co-inventors
56Inventor score
Filing activity: Sep 23, 1994 → May 21, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6343218B1 | Transmission power control method, mobile phone, base station, and recording medium | Electricity | 103 | Expired |
| US5767810A | Microstrip antenna device | Electricity | 53 | Expired |
| US6265935A | Amplifier for radio transmission | Electricity | 37 | Expired |
| US5917450A | Antenna device having two resonance frequencies | Electricity | 36 | Expired |
| US5568155A | Antenna devices having double-resonance characteristics | Electricity | 29 | Expired |
| US5617105A | Antenna equipment | Electricity | 26 | Expired |
| US11356862B2 | Measuring method and measuring device | Electricity | 0 | Active |
| US7088977B2 | Wireless communication apparatus and wireless communication method | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.