Ma Jun Chang

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Automatically converting a sign and method for automatically readin...
- Patent number 9,092,687
- Issue date Jul 28, 2015
- International Business Machines Corporation
- Ma Jun Chang
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Automatically Converting a Sign and Method for Automatically Readin...
- Publication number 20140239072
- Publication date Aug 28, 2014
- International Business Machines Corporation
- Ma Jun Chang
- G06 - COMPUTING CALCULATING COUNTING