YENG MING CHANG

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NEW TAIPEI CITY, TW

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Patents Grantslast 30 patents

Information Patent Grant
Tamper protection device and data transaction apparatus
- Patent number 9,226,392
- Issue date Dec 29, 2015
- XAC AUTOMATION CORP.
- Yeng Ming Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
BLOCK CHAIN TRADING SYSTEM AND BLOCK CHAIN TRADING METHOD
- Publication number 20210097530
- Publication date Apr 1, 2021
- XAC AUTOMATION CORP.
- Yeng-Ming CHANG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
TAMPER PROTECTION DEVICE AND DATA TRANSACTION APPARATUS
- Publication number 20140204543
- Publication date Jul 24, 2014
- XAC AUTOMATION CORP.
- YENG MING CHANG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD FOR PERSONAL IDENTITY AUTHENTICATION UTILIZING A PERSONAL CR...
- Publication number 20120124378
- Publication date May 17, 2012
- XAC AUTOMATION CORP.
- YENG MING CHANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE