Junichi Usui
10Patents
7h-index
15Co-inventors
59Inventor score
Filing activity: Oct 27, 1988 → Jun 25, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6271891A | Video signal processing circuit providing optimum signal level for inverse gamma correction | Physics | 58 | Expired |
| US5027502A | Automobile assembling method and apparatus therefor | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6498856B1 | Vehicle-carried sound reproduction apparatus | Electricity | 28 | Expired |
| US4894909A | Apparatus for assembling wheel attaching unit for use in vehicle assembly line | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6501843B2 | Automotive audio reproducing apparatus | Electricity | 21 | Expired |
| US5040290A | Vehicle door mounting system | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4961257A | Door assembling apparatus for use in automobile assembly | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5065963A | Transporting train travel control system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7113602B2 | Apparatus for adjustable positioning of virtual sound source | Electricity | 6 | Expired |
| US6950147B2 | Apparatus and method for discriminating color format | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.