Li Yushan

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Ossining, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrical apparatus having an electromagnetic device operable at m...
- Patent number 6,583,703
- Issue date Jun 24, 2003
- Koninklijke Philips Electronics N.V.
- Yushan Li
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Adaptable inverter
- Patent number 6,486,618
- Issue date Nov 26, 2002
- Koninklijke Philips Electronics N.V.
- Yushan Li
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electronic ballast employing a startup transient voltage suppressio...
- Patent number 6,376,999
- Issue date Apr 23, 2002
- Philips Electronics North America Corporation
- Yushan Li
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
System and method for overvoltage protection during pulse width mod...
- Patent number 6,359,391
- Issue date Mar 19, 2002
- Philips Electronics North America Corporation
- Yushan Li
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Low cost half bridge driver integrated circuit with capability of u...
- Patent number 6,353,345
- Issue date Mar 5, 2002
- Philips Electronics North America Corporation
- Li Yushan
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Electrical apparatus having an electromagnetic device operable at m...
- Publication number 20020196118
- Publication date Dec 26, 2002
- Koninklijke Philips Electronics N.V.
- Yushan Li
- H01 - BASIC ELECTRIC ELEMENTS