Yuji Shimada
38Patents
8h-index
57Co-inventors
78Inventor score
Filing activity: Jun 29, 1989 → Mar 24, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4953253A | Canister vacuum cleaner with automatic operation control | Emerging Cross-Sectional Technologies | 145 | Expired |
| US7743739B2 | Engine-driven generator | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US5555621A | Method of producing a catalytic converter | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7673589B2 | Engine-driven work machine | Mechanical Engineering; Lighting; Heating | 14 | Active |
| US7756422B2 | Method for measuring optical characteristics and system thereof | Electricity | 11 | Active |
| US8097997B2 | Driving device with rotating electric machine | Emerging Cross-Sectional Technologies | 8 | Active |
| US5038129A | Electromagnetic having magnetic shield | Physics | 8 | Expired |
| US8225690B2 | Power transmission device | Emerging Cross-Sectional Technologies | 8 | Active |
| US6992647B2 | Organic EL drive circuit and organic EL display device using the same | Electricity | 8 | Expired |
| US5410877A | Manifold converter | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7756416B2 | Optical communication node and optical network system | Electricity | 4 | Expired |
| US9261545B2 | Capacitance voltage conversion circuit, input apparatus using the same, electronic instrument, and capacitance voltage conversion method | Electricity | 3 | Active |
| US7580631B2 | Optical transmission device for controlling optical level of transmission signal in optical transmission system | Electricity | 3 | Active |
| US7396013B2 | Lottery device | Human Necessities | 3 | Active |
| US7286758B2 | Method for switching transmission route, and optical transmission device | Electricity | 3 | Expired |
| US7471050B2 | Organic EL drive circuit and organic EL display device | Physics | 2 | Expired |
| US7551828B2 | Optical transmission device for controlling optical level of transmission signal in optical transmission system | Physics | 2 | Expired |
| US6987903B2 | Optical transmission network, optical transmission apparatus, dispersion compensator arrangement calculation apparatus and dispersion compensator arrangement calculation method | Electricity | 2 | Expired |
| US11092633B2 | Capacitance detection circuit, semiconductor device, input device and electronic apparatus including the same, and method of detecting capacitance | Electricity | 1 | Active |
| US11199932B2 | Touch detection circuit with detection of water | Physics | 1 | Active |
| US7394951B2 | Optical signal level control apparatus | Electricity | 1 | Expired |
| US11567603B2 | Capacitance detection circuit and input device | Physics | 1 | Active |
| US9697998B2 | Mass spectrometer | Electricity | 1 | Active |
| US8699506B2 | Optical transmission apparatus and optical transmission method | Electricity | 1 | Active |
| US8833329B2 | Fastening structure of power unit | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.