Junichi Takagi
47Patents
12h-index
65Co-inventors
84Inventor score
Filing activity: Feb 22, 1989 → Jun 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7014349B2 | Surface light source, method for manufacturing the same and apparatus using it | Physics | 68 | Expired |
| US6967698B2 | Plane light source apparatus | Physics | 46 | Expired |
| US5235364A | Lens-fitted photographic film package with flash unit | Physics | 38 | Expired |
| US5047792A | Camera | Physics | 33 | Expired |
| US5311231A | Lens-fitted photographic film unit and method for assembling the same | Physics | 26 | Expired |
| US4954858A | Lens-fitted photographic film package | Physics | 25 | Expired |
| US5181057A | Lens-fitted photographic film package | Physics | 21 | Expired |
| US5361111A | Lens-fitted photographic film unit with means preventing unintended actuation of pushbuttons | Physics | 21 | Expired |
| US5652655A | Road surface discriminator and apparatus applying same | Performing Operations; Transporting | 21 | Expired |
| US5847826A | Sensor for detecting raindrops, wiper drive apparatus using the device, and vehicle using them | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5608486A | Lens-fitted photographic film package | Physics | 13 | Expired |
| US5315332A | Lens-fitted photographic film package and flash unit | Physics | 13 | Expired |
| USRE34168E | Lens-fitted photographic film package | General | 12 | Expired |
| US5752084A | Lens-fitted photo film unit and electronic flash device for use therewith | Physics | 11 | Expired |
| US5432572A | Lens-fitted photographic film package and flash unit | Physics | 11 | Expired |
| US5565945A | Lens-fitted photographic film unit with film winding motor | Physics | 10 | Expired |
| US5084719A | Lens-fitted photographic film package | Physics | 9 | Expired |
| US5692221A | Narrow profile lens-fitted film unit | Physics | 8 | Expired |
| US5557395A | Optical device for measuring speed | Physics | 8 | Expired |
| US5040873A | Optical device | Physics | 7 | Expired |
| US6712531B2 | Camera | Physics | 6 | Expired |
| US6043869A | Optical device for measuring speed | Physics | 6 | Expired |
| US5659803A | Lens-fitted photographic film package | Physics | 6 | Expired |
| US7603872B2 | Heat-pump hot water supply apparatus | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US5854946A | Lens-fitted photo film unit and electronic flash device for use therewith | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.