Jun-Yong YUN

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Suwon-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Mining bit and method of manufacturing the bit
- Patent number 11,136,831
- Issue date Oct 5, 2021
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Ki Ho Kim
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Drill bit for drilling and method for manufacturing same
- Patent number 10,871,038
- Issue date Dec 22, 2020
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Ki-Ho Kim
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Drill bit for drilling and method for manufacturing same
- Patent number 10,605,007
- Issue date Mar 31, 2020
- EHWA Diamond Industrial Co., Ltd.
- Ki-Ho Kim
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
MINING BIT AND METHOD OF MANUFACTURING THE BIT
- Publication number 20210331253
- Publication date Oct 28, 2021
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Ki Ho KIM
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
DRILL BIT FOR DRILLING AND METHOD FOR MANUFACTURING SAME
- Publication number 20200190911
- Publication date Jun 18, 2020
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Ki-Ho KIM
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MINING BIT AND METHOD OF MANUFACTURING THE BIT
- Publication number 20190284878
- Publication date Sep 19, 2019
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Ki Ho KIM
- B22 - CASTING POWDER METALLURGY
Information Patent Application
DRILL BIT FOR DRILLING AND METHOD FOR MANUFACTURING SAME
- Publication number 20170275949
- Publication date Sep 28, 2017
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Ki-Ho KIM
- C21 - METALLURGY OF IRON