Yeon W. Koh

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Daejon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for measuring polarization-dependent loss usin...
- Patent number 6,657,709
- Issue date Dec 2, 2003
- Donam Systems Inc.
- Yeon Wan Koh
- G01 - MEASURING TESTING
Information Patent Grant
Optical fiber for broadband optical devices and optical fiber devic...
- Patent number 6,621,968
- Issue date Sep 16, 2003
- Ultraband Fiber Optics, Inc.
- Yeon Wan Koh
- G02 - OPTICS
Information Patent Grant
Optical fiber polarization scrambler and operating parameter input...
- Patent number 6,266,456
- Issue date Jul 24, 2001
- Donam Systems Inc.
- Bong Wan Lee
- G02 - OPTICS
Information Patent Grant
Optical fiber polarization controller
- Patent number 6,233,371
- Issue date May 15, 2001
- Donam Systems Inc.
- Byoung Yoon Kim
- G02 - OPTICS
Information Patent Grant
Fiber-optic devices and sensors using fiber grating
- Patent number 5,444,803
- Issue date Aug 22, 1995
- Agency of Defense Development
- Byoung Y. Kim
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for measuring polarization-dependent loss usin...
- Publication number 20030111998
- Publication date Jun 19, 2003
- Yeon Wan Koh
- G02 - OPTICS