Hee-Dong Chang

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Daejeon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for diagnosing pneumatic control valve by usin...
- Patent number 11,378,108
- Issue date Jul 5, 2022
- Korea Hydro & Nuclear Power Co., Ltd.
- Yang Seok Kim
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
System and method for diagnosing pneumatic control valve online
- Patent number 11,307,566
- Issue date Apr 19, 2022
- Korea Hydro & Nuclear Power Co., Ltd.
- Yang Seok Kim
- G05 - CONTROLLING REGULATING
Information Patent Grant
Scalable transmission method of visual objects segmented by content...
- Patent number 6,025,877
- Issue date Feb 15, 2000
- Electronics and Telecommunications Research Institute
- Hee-Dong Chang
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR DIAGNOSING PNEUMATIC CONTROL VALVE ONLINE
- Publication number 20210278830
- Publication date Sep 9, 2021
- KOREA HYDRO & NUCLEAR POWER CO., LTD.
- Yang Seok KIM
- G01 - MEASURING TESTING
Information Patent Application
ONLINE DIAGNOSTIC/PROGNOSTIC SYSTEM FOR ROTATION DEVICE
- Publication number 20190242744
- Publication date Aug 8, 2019
- KOREA HYDRO & NUCLEAR POWER CO., LTD.
- Yang Seok Kim
- G01 - MEASURING TESTING
Information Patent Application
METHOD AND APPARATUS FOR DIAGNOSING PNEUMATIC CONTROL VALVE BY USIN...
- Publication number 20190195249
- Publication date Jun 27, 2019
- KOREA HYDRO & NUCLEAR POWER CO., LTD.
- Yang Seok KIM
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
METHOD FOR DIAGNOSING ROTATION DEVICE BY MEANS OF ROTOR-BEARING-FOU...
- Publication number 20190188345
- Publication date Jun 20, 2019
- KOREA HYDRO & NUCLEAR POWER CO., LTD.
- Yang Seok Kim
- G06 - COMPUTING CALCULATING COUNTING