Youngsu Ko

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Seongnam-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Messaging service system and method for expanding member addition o...
- Patent number 9,876,654
- Issue date Jan 23, 2018
- LINE Corporation
- Haejin Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for providing on-air service using official account
- Patent number 9,497,143
- Issue date Nov 15, 2016
- LINE Corporation
- Hyuk Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR PROVIDING ON-AIR SERVICE USING OFFICIAL ACCOUNT
- Publication number 20140032684
- Publication date Jan 30, 2014
- LINE CORPORATION
- Hyuk Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MESSAGING SERVICE SYSTEM AND METHOD FOR EXPANDING MEMBER ADDITION O...
- Publication number 20120311052
- Publication date Dec 6, 2012
- NHN CORPORATION
- Haejin LEE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE