Yongjiang LU

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Weifang City, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Impedance detection apparatus for earphone plug
- Patent number 10,823,773
- Issue date Nov 3, 2020
- GoerTek Inc.
- Jianbo Wang
- G01 - MEASURING TESTING
Information Patent Grant
Wire control earphone
- Patent number 10,516,932
- Issue date Dec 24, 2019
- Goertek Inc.
- Jianbo Wang
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
WIRE CONTROL EARPHONE
- Publication number 20190297409
- Publication date Sep 26, 2019
- GOERTEK INC
- Jianbo WANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMPEDANCE DETECTION APPARATUS FOR EARPHONE PLUG
- Publication number 20190293700
- Publication date Sep 26, 2019
- GOERTEK INC
- Jianbo WANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE