Huiyang Dongmei Audio Products Co., Ltd.

Follow

Organization

Guang Dong, CN

Organizations

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Headphone structure for adjusting audio frequencies
- Patent number 9,438,989
- Issue date Sep 6, 2016
- Huiyang Dongmei Audio Products Co., Ltd.
- Ming-Chung Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coaxial audio speaker using single audio source
- Patent number 9,258,630
- Issue date Feb 9, 2016
- HUIYANG DONGMEI AUDIO PRODUCTS CO., LTD.
- Ming-Chung Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Off-axial audio speaker using single audio source
- Patent number 9,210,489
- Issue date Dec 8, 2015
- HUIYANG DONGMEI AUDIO PRODUCTS CO., LTD.
- Ming-Chung Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple-ring coaxial audio speaker using single audio source
- Patent number 9,210,513
- Issue date Dec 8, 2015
- HUIYANG DONGMEI AUDIO PRODUCTS CO., LTD.
- Ming-Chung Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
COAXIAL AUDIO SPEAKER USING SINGLE AUDIO SOURCE
- Publication number 20160014485
- Publication date Jan 14, 2016
- Huiyang Dongmei Audio Products Co., Ltd.
- Ming-Chung CHU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HEADPHONE STRUCTURE FOR ADJUSTING AUDIO FREQUENCIES
- Publication number 20150382099
- Publication date Dec 31, 2015
- Huiyang Dongmei Audio Products Co., Ltd.
- Ming-Chung Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COAXIAL AUDIO SPEAKER USING SINGLE AUDIO SOURCE
- Publication number 20150373435
- Publication date Dec 24, 2015
- Huiyang Dongmei Audio Products Co., Ltd.
- Ming-Chung CHU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MULTIPLE-VOCAL COIL COAXIAL AUDIO SPEAKER USING SINGLE AUDIO SOURCE
- Publication number 20150373436
- Publication date Dec 24, 2015
- Huiyang Dongmei Audio Products Co., Ltd.
- Ming-Chung CHU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Trademarklast 30 trademarks