Choong Ki Cho

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Incheon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Dual band retractable antenna system with capacitive coupling
- Patent number 6,239,768
- Issue date May 29, 2001
- ACE Technology
- Jeong Kun Oh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Capacitive coupled extendable antenna for portable communication de...
- Patent number 5,969,684
- Issue date Oct 19, 1999
- ACE Technology Co., Ltd.
- Jung Kun Oh
- H01 - BASIC ELECTRIC ELEMENTS