Kyoungku Han

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Gwangmyeong-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Casing of condenser microphone
- Patent number 7,620,197
- Issue date Nov 17, 2009
- BSE Co., Ltd.
- Kyoungku Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Casing of condenser microphone
- Publication number 20060262953
- Publication date Nov 23, 2006
- Kyoungku Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dual base of an electret condenser microphone and electret condense...
- Publication number 20060256984
- Publication date Nov 16, 2006
- Chungdam Song
- H04 - ELECTRIC COMMUNICATION TECHNIQUE