Chee Woong Song

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Steel material for taylor welded blank and method for manufacturing...
- Patent number 11,655,518
- Issue date May 23, 2023
- Hyundai Steel Company
- Byung Gil Yoo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Steel material for taylor welded blank and method for manufacturing...
- Patent number 11,629,389
- Issue date Apr 18, 2023
- Hyundai Steel Company
- Byung Gil Yoo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Molded body manufacturing method
- Patent number 11,400,504
- Issue date Aug 2, 2022
- Hyundai Steel Company
- Byung Gil Yoo
- C21 - METALLURGY OF IRON
Information Patent Grant
Hot-stamped part and method for manufacturing same
- Patent number 11,390,929
- Issue date Jul 19, 2022
- Hyundai Steel Company
- Byung Gil Yoo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
STEEL MATERIAL FOR TAYLOR WELDED BLANK AND METHOD FOR MANUFACTURING...
- Publication number 20220074017
- Publication date Mar 10, 2022
- HYUNDAI STEEL COMPANY
- Byung Gil Yoo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
STEEL MATERIAL FOR TAYLOR WELDED BLANK AND METHOD FOR MANUFACTURING...
- Publication number 20210292866
- Publication date Sep 23, 2021
- HYUNDAI STEEL COMPANY
- Byung Gil Yoo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HOT-STAMPED PART AND METHOD FOR MANUFACTURING SAME
- Publication number 20210147955
- Publication date May 20, 2021
- HYUNDAI STEEL COMPANY
- Byung Gil Yoo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MOLDED BODY MANUFACTURING METHOD
- Publication number 20180257122
- Publication date Sep 13, 2018
- Hyundai Steel Company
- Byung Gil Yoo
- C21 - METALLURGY OF IRON