Ming-Daw Chen
29Patents
6h-index
34Co-inventors
69Inventor score
Filing activity: Jul 19, 1989 → Dec 30, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4978870A | CMOS digital level shifter circuit | Electricity | 246 | Expired |
| US5207000A | Method and apparatus useful for determining an angle between a virtual optical axis and a planar surface | Physics | 23 | Expired |
| US8385586B2 | Flat loudspeaker structure | Electricity | 9 | Active |
| US5335254A | Shift register system for driving active matrix display | Physics | 8 | Expired |
| US8196282B2 | Methods of making speakers | Emerging Cross-Sectional Technologies | 6 | Active |
| US8138034B2 | Flexible electret transducer assembly, speaker, and method for fabricating flexible electret transducer assembly | Electricity | 6 | Active |
| US8139794B2 | Speaker devices | Emerging Cross-Sectional Technologies | 6 | Active |
| US8503702B2 | Electret diaphragm and speaker using the same | Electricity | 5 | Active |
| US6778161B2 | Central symmetric gamma voltage correction circuit | Physics | 4 | Expired |
| US8107651B2 | Speaker structure | Electricity | 4 | Active |
| US8625824B2 | Flat speaker unit and speaker device therewith | Electricity | 3 | Active |
| US8081784B2 | Electrostatic electroacoustic transducers | Electricity | 3 | Active |
| US8243966B2 | Assembly structure of a flat speaker | Electricity | 3 | Active |
| US6680755B2 | Adjustable biased gamma-correction circuit with central-symmetry voltage | Physics | 3 | Expired |
| US8155356B2 | Structure and manufacturing method of electrostatic speaker | Electricity | 3 | Active |
| US8126189B2 | Multi-directional flat speaker device | Electricity | 3 | Active |
| US8447053B2 | Flat speaker apparatus with heat dissipating structure and method for heat dissipation of flat speaker | Electricity | 2 | Active |
| US8588438B2 | Driving interface device adaptive to a flat speaker | Electricity | 1 | Active |
| US8594349B2 | Flat speaker structure | Electricity | 1 | Active |
| US8391520B2 | Flat speaker unit and speaker device therewith | Electricity | 1 | Active |
| US7598771B2 | Level shifter for gate driver | Electricity | 1 | Active |
| US8300859B2 | Speaker devices and methods of making the same | Electricity | 1 | Active |
| US8831253B2 | Electroacoustic apparatus with optical energy conversion function | Electricity | 0 | Active |
| US7180492B2 | Scan driving circuit with single-type transistors | Physics | 0 | Expired |
| US7081881B2 | Time-sharing multiplexing driving method and framework for image signal | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.