Hiroshi Fujikawa
13Patents
6h-index
13Co-inventors
63Inventor score
Filing activity: Aug 12, 1974 → Aug 28, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3952787A | Puncture-sealing rubber composition | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5859617A | Extendable rod antenna and helical antenna with frequency adjusting conductor | Electricity | 24 | Expired |
| US6232925A | Antenna device | Electricity | 20 | Expired |
| USD793365S1 | Remote controller | General | 12 | Active |
| US6513837B2 | Device for coupling pipelines for running cryogenic liquid | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6201500A | Dual frequency antenna device | Electricity | 9 | Expired |
| US5979277A | Method and apparatus for punching a thin metal tape to provide a lead frame for a semiconductor device | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5832937A | Haircut method | Performing Operations; Transporting | 4 | Expired |
| US7468701B2 | Attachment/detachment mechanism for compact antenna | Electricity | 3 | Active |
| US6598217B1 | Method of mounting fabrication-historical data for semiconductor device, and semiconductor device fabricated by such a method | Electricity | 2 | Expired |
| US9754482B2 | Remote control device and remote control system | Physics | 0 | Active |
| US11771603B2 | Absorbent article | Human Necessities | 0 | Active |
| US11942612B2 | Battery system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.