Inventor · disambiguated record
Hae-Chang Choi
Also filed as: CHOI HAE C · CHOI HAE-CHANG
6 granted patents·130 citations·filing 1994–2005
84Inventor score
Top patents by PatentIndex Score
6 records- 0195US7105066B2Steel plate having superior toughness in weld heat-affected zone and welded structure made therefromPOSCO·Filed 2001·Granted Sep 12, 2006·87 cites·7 claims
- 0279US6686061B2Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefromPOSCO·Filed 2001·Granted Feb 3, 2004·14 cites·25 claims
- 0369US6966955B2Steel plate having TiN+ZrN precipitates for welded structures, method for manufacturing same and welded structure made therefromPOSCO·Filed 2001·Granted Nov 22, 2005·8 cites·23 claims
- 0467US7396423B2Method for manufacturing steel plate having superior toughness in weld heat-affected zonePOSCO·Filed 2005·Granted Jul 8, 2008·1 cites·13 claims
- 0566US6946038B2Steel plate having Tin+MnS precipitates for welded structures, method for manufacturing same and welded structurePOSCO·Filed 2001·Granted Sep 20, 2005·7 cites·19 claims
- 0652US5575973AHigh strength high toughness spring steel, and manufacturing process thereforPO HANG IRON & STEEL·Filed 1994·Granted Nov 19, 1996·13 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →