Chien Ping Lee

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Fremont, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Heterojunction bipolar transistor having non-uniformly doped collec...
- Patent number 7,012,288
- Issue date Mar 14, 2006
- WJ Communications, Inc.
- Chien Ping Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor having wide bandgap material in c...
- Patent number 6,806,513
- Issue date Oct 19, 2004
- EiC Corporation
- Hin Fai Chau
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Copy protect recording and playback system that enables single auth...
- Patent number 5,889,919
- Issue date Mar 30, 1999
- Sony Electronics, Inc.
- Hajime Inoue
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Heterojunction bipolar transistor having non-uniformly doped collec...
- Publication number 20040188712
- Publication date Sep 30, 2004
- EiC Corporation
- Chien Ping Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Heterojunction bipolar transistor having non-uniformly doped collec...
- Publication number 20040065897
- Publication date Apr 8, 2004
- EiC Corporation
- Chien Ping Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Heterojunction bipolar transistor having wide bandgap material in c...
- Publication number 20040065898
- Publication date Apr 8, 2004
- EiC Corporation
- Hin Fai Chau
- H01 - BASIC ELECTRIC ELEMENTS