Gwan-Chong Joo

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Hwaseong, KR

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Patents Grantslast 30 patents

Information Patent Grant
Optical measuring system with arrayed optical receivers and method...
- Patent number 7,181,101
- Issue date Feb 20, 2007
- Hantech Co., Ltd.
- Gwan Chong Joo
- G01 - MEASURING TESTING
Information Patent Grant
Optical fiber array block embedding optical device therein
- Patent number 7,010,192
- Issue date Mar 7, 2006
- Hantech Co., Ltd.
- Gwan Chong Joo
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
BIDIRECTIONAL OPTICAL MODULE
- Publication number 20130279855
- Publication date Oct 24, 2013
- Hantech Co., Ltd.
- Jae-Shik Choi
- G02 - OPTICS
Information Patent Application
Optical measuring system with arrayed optical receivers and method...
- Publication number 20050163507
- Publication date Jul 28, 2005
- Gwan Chong Joo
- G01 - MEASURING TESTING
Information Patent Application
Optical fiber array block embedding optical device therein
- Publication number 20040264865
- Publication date Dec 30, 2004
- Gwan Chong Joo
- G02 - OPTICS