Jong-Hyuk Roh

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Incheon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method of validating certificate by certificate validation server u...
- Patent number 7,478,236
- Issue date Jan 13, 2009
- Electronics and Telecommunications Research Institute
- Jong Hyuk Roh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for modifying validity of a certificate using biometric info...
- Patent number 7,366,904
- Issue date Apr 29, 2008
- Electronics and Telecomunications Research Institute
- Jong-Hyuk Roh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable USB storage device
- Patent number 7,133,296
- Issue date Nov 7, 2006
- Electronics and Telecommunications Research Institute
- Dae Seon Choi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Portable USB storage device
- Publication number 20040090751
- Publication date May 13, 2004
- Dae Seon Choi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method of validating certificate by certificate validation server u...
- Publication number 20040030888
- Publication date Feb 12, 2004
- Jong Hyuk Roh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for modifying validity of a certificate using biometric info...
- Publication number 20030076962
- Publication date Apr 24, 2003
- Jong-Hyuk Roh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for issuing a certificate using biometric information in pub...
- Publication number 20030076961
- Publication date Apr 24, 2003
- Hee Sun Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE