Inventor
CHA SUNG CHUL
KR21 patents
⚠️ This page may combine multiple inventors who share the name “CHA SUNG CHUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYUNDAI MOTOR CO LTD
19 patentsUS9133543B2Sep 15, 2015
Coating material for aluminum die casting mold and method for manufacturing the same
HYUNDAI MOTOR CO LTD5 citations71
US8746027B2Jun 10, 2014
Multi-layer mold coating
HYUNDAI MOTOR CO LTD4 citations71
US10060014B2Aug 28, 2018
Bearing steel having improved fatigue durability and method of manufacturing the same
HYUNDAI MOTOR CO LTD2 citations67
US9243310B2Jan 26, 2016
Coating material for aluminum die casting and method for coating the same
HYUNDAI MOTOR CO LTD2 citations62
US9181847B2Nov 10, 2015
Coating material for parts of engine exhaust system and method for manufacturing the same
HYUNDAI MOTOR CO LTD2 citations61
US10308996B2Jun 4, 2019
Hot stamping steel and producing method thereof
HYUNDAI MOTOR CO LTD1 citations59
US10329650B2Jun 25, 2019
High manganese steel
HYUNDAI MOTOR CO LTD1 citations58
US9085028B2Jul 21, 2015
Method for manufacturing valve train parts using metal powder injection molding
HYUNDAI MOTOR CO LTD1 citations51
US10487382B2Nov 26, 2019
High strength special steel
HYUNDAI MOTOR CO LTD0 citations48
US10513765B2Dec 24, 2019
Stainless steel having excellent oxidation resistance at high temperature
HYUNDAI MOTOR CO LTD0 citations47
US10000831B2Jun 19, 2018
Highly durable coil spring steel
HYUNDAI MOTOR CO LTD1 citations47
US9957595B2May 1, 2018
Carburized alloy steel having improved durability and method of manufacturing the same
HYUNDAI MOTOR CO LTD0 citations47
US10544486B2Jan 28, 2020
Nickel alloys for exhaust system components
HYUNDAI MOTOR CO LTD0 citations45
US10487380B2Nov 26, 2019
High-strength special steel
HYUNDAI MOTOR CO LTD0 citations45
US10718039B2Jul 21, 2020
High strength spring steel having excellent corrosion resistance
HYUNDAI MOTOR CO LTD0 citations41
US10400324B2Sep 3, 2019
Method of treating composite piston pin and surface treated composite piston pin
HYUNDAI MOTOR CO LTD0 citations39
US10689736B2Jun 23, 2020
Ultra-high-strength spring steel for valve spring
HYUNDAI MOTOR CO LTD0 citations38
US10487381B2Nov 26, 2019
Ultrahigh-strength spring steel
HYUNDAI MOTOR CO LTD0 citations37
US10494705B2Dec 3, 2019
Ultra high-strength spring steel
HYUNDAI MOTOR CO LTD0 citations36