Choon Shik JOO

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Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic control device and hydraulic control method for construct...
- Patent number 10,633,828
- Issue date Apr 28, 2020
- Doosan Infracore Co., Ltd.
- Choon-shik Joo
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Hydraulic system and hydraulic control method for construction machine
- Patent number 10,604,915
- Issue date Mar 31, 2020
- Doosan Infracore Co., Ltd.
- Choon-shik Joo
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Hydraulic system of construction machinery
- Patent number 10,407,876
- Issue date Sep 10, 2019
- Doosan Infracore Co., Ltd.
- Choon-Shik Joo
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Control circuit and control method for boom energy regeneration
- Patent number 10,174,484
- Issue date Jan 8, 2019
- Doosan Infracore Co., Ltd.
- Choon Shik Joo
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
HYDRAULIC CONTROL DEVICE AND HYDRAULIC CONTROL METHOD FOR CONSTRUCT...
- Publication number 20180363271
- Publication date Dec 20, 2018
- Doosan Infracore Co., Ltd.
- Choon-shik Joo
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
HYDRAULIC SYSTEM AND HYDRAULIC CONTROL METHOD FOR CONSTRUCTION MACHINE
- Publication number 20180355584
- Publication date Dec 13, 2018
- Doosan Infracore Co., Ltd.
- Choon-Shik JOO
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
HYDRAULIC SYSTEM OF CONSTRUCTION MACHINERY
- Publication number 20180148907
- Publication date May 31, 2018
- Doosan Infracore Co., Ltd.
- Choon-Shik JOO
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
CONTROL CIRCUIT AND CONTROL METHOD FOR BOOM ENERGY REGENERATION
- Publication number 20160312444
- Publication date Oct 27, 2016
- Doosan Infracore Co., Ltd.
- Choon Shik JOO
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING