Dau-Chyrh CHANG

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Taipei City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Toroidal compact antenna test range
- Patent number 11,101,569
- Issue date Aug 24, 2021
- Dau-Chyrh Chang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Antenna system and a communication device
- Patent number 9,660,335
- Issue date May 23, 2017
- Climax Technology Co., Ltd.
- Cheng-Wei Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device and grounding device for enhancing EMS and wireless communic...
- Patent number 8,786,513
- Issue date Jul 22, 2014
- Climax Technology Co., Ltd.
- Hsiao-Pin Liang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Wireless security device
- Patent number 8,780,005
- Issue date Jul 15, 2014
- Climax Technology Co., Ltd.
- Cheng-Wei Chen
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
TOROIDAL COMPACT ANTENNA TEST RANGE
- Publication number 20210210863
- Publication date Jul 8, 2021
- Dau-Chyrh Chang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ANTENNA SYSTEM AND A COMMUNICATION DEVICE
- Publication number 20170012353
- Publication date Jan 12, 2017
- CLIMAX TECHNOLOGY CO., LTD
- Cheng-Wei Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WIRELESS SECURITY DEVICE
- Publication number 20130257671
- Publication date Oct 3, 2013
- CLIMAX TECHNOLOGY CO., LTD
- Cheng-Wei CHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DEVICE AND GROUNDING DEVICE FOR ENHANCING EMS AND WIRELESS COMMUNIC...
- Publication number 20130169487
- Publication date Jul 4, 2013
- CLIMAX TECHNOLOGY CO., LTD
- Hsiao-Pin LIANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHASE SHIFTER
- Publication number 20100156557
- Publication date Jun 24, 2010
- SMARTANT TELECOM CO., LTD.
- Dau-Chyrh CHANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHASE SHIFTER
- Publication number 20100073105
- Publication date Mar 25, 2010
- Dau-Chyrh CHANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Adjustable Phase Shifter For Antenna
- Publication number 20090033438
- Publication date Feb 5, 2009
- SmartAnt Telecom Co., Ltd.
- Dau-Chyrh Chang
- H01 - BASIC ELECTRIC ELEMENTS