Jinguo Zhang

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Qingdao, CN

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Patents Grantslast 30 patents

Information Patent Grant
Audio device power supply system
- Patent number 11,101,675
- Issue date Aug 24, 2021
- QINGDAO GOERTEK TECHNOLOGY CO., LTD.
- Honggang Zhou
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
OPEN-FIELD FAR-FIELD SILENCING SPEAKER APPARATUS, HEAD-MOUNTED DEVI...
- Publication number 20240265905
- Publication date Aug 8, 2024
- GOERTEK TECHNOLOGY CO., LTD.
- Jinbao Li
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
SPEAKER MODULE AND HEAD-MOUNTED DEVICE
- Publication number 20240205594
- Publication date Jun 20, 2024
- GOERTEK TECHNOLOGY CO., LTD.
- Jinbao Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE