Xiuli CHANG

Follow

Person

WeiFang, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Diaphragm assembly and loudspeaker having same
- Patent number 10,200,793
- Issue date Feb 5, 2019
- GoerTek Inc.
- Xiuli Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker diaphragm and manufacturing method thereof
- Patent number 9,838,817
- Issue date Dec 5, 2017
- GoerTek Inc.
- Xiuli Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
VIBRATION DIAPHRAGM AND SPEAKER DEVICE
- Publication number 20180270578
- Publication date Sep 20, 2018
- GOERTEK INC
- Xiuli CHANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIAPHRAGM ASSEMBLY AND LOUDSPEAKER HAVING SAME
- Publication number 20180041838
- Publication date Feb 8, 2018
- GOERTEK INC.
- Xiuli CHANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOUDSPEAKER DIAPHRAGM AND MANUFACTURING METHOD THEREOF
- Publication number 20160295329
- Publication date Oct 6, 2016
- Xiuli CHANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE