Ryokichi Doi
9Patents
6h-index
8Co-inventors
56Inventor score
Filing activity: Feb 17, 1995 → Oct 3, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5821904A | Window glass antenna device | Electricity | 19 | Expired |
| US5521606A | Window glass antenna for motor vehicles | Electricity | 19 | Expired |
| US6937198B2 | Glass antenna system for vehicles | Electricity | 13 | Expired |
| US7071886B2 | Glass antenna and glass antenna system for vehicles | Electricity | 12 | Expired |
| US5657029A | Glass antenna device for automobile telephone | Electricity | 8 | Expired |
| US6292150A | Glass antenna device | Electricity | 7 | Expired |
| US7671298B2 | Heating line pattern structure of defogger formed on rear window glass panel of motor vehicle and rear glass panel | Electricity | 0 | Active |
| US11695194B2 | Rear glass | Electricity | 0 | Active |
| US10608318B2 | Glass antenna | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.