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Seok-Kyu Chang
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Daejeon, KR
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Patents Grants
last 30 patents
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Patent Grant
Laser doppler velocity system for variable beam focusing
Patent number
8,120,756
Issue date
Feb 21, 2012
Korea Atomic Energy Research Institute
Seok-Kyu Chang
G01 - MEASURING TESTING
Information
Patent Grant
Separable ball valve apparatus and ball valve assembly
Patent number
8,082,947
Issue date
Dec 27, 2011
Korea Atomic Energy Research Institute
Seok-Kyu Chang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Coupling and decoupling assembly of pipe having double valve
Patent number
7,967,026
Issue date
Jun 28, 2011
Korea Atomic Energy Research Institute
Seok Kyu Chang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
VISUAL ATTENTION APPARATUS AND CONTROL METHOD BASED ON MIND AWARENE...
Publication number
20120189161
Publication date
Jul 26, 2012
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Seok Bae Chang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Separable Ball Valve Apparatus and Ball Valve Assembly
Publication number
20100140522
Publication date
Jun 10, 2010
Korea Atomic Energy Research Institute
Seok-Kyu Chang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Laser Doppler Velocity System for Variable Beam Focusing
Publication number
20090237643
Publication date
Sep 24, 2009
Seok-Kyu Chang
G02 - OPTICS
Information
Patent Application
COUPLING AND DECOUPLING ASSEMBLY OF PIPE HAVING DOUBLE VALVE
Publication number
20080001397
Publication date
Jan 3, 2008
Korea Atomic Energy Research Institute
Seok Kyu Chang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...