Inventor · disambiguated record
Nag-Joon Choi
Also filed as: CHOI NAG-JOON
7 granted patents·1 pending application·70 citations·filing 1997–2006
83Inventor score
Top patents by PatentIndex Score
8 records- 0178US6736876B1Fluidized bed breakage prevention system for fluidized bed reduction reactor and methodRES INST IND SCIENCE & TECH·Filed 2000·Granted May 18, 2004·14 cites·27 claims
- 0276US6585798B2Fluidized bed reactor for preventing the fine iron ore from sticking therein and method thereofPO HANG IRON & STEEL·Filed 2000·Granted Jul 1, 2003·15 cites·17 claims
- 0370US8221674B2Distributor baseHAUZENBERGER FRANZ·Filed 2006·Granted Jul 17, 2012·4 cites·29 claims
- 0470US6110413A3-Stage fluidized bed type fine iron ore reducing apparatus having x-shaped circulating tubesPO HANG IRON & STEEL·Filed 1997·Granted Aug 29, 2000·26 cites·4 claims
- 0545US6235079B1Two step twin-single fluidized bed pre-reduction apparatus for pre-reducing fine iron ore, and method thereforPO HANG IRON & STEEL·Filed 1998·Granted May 22, 2001·8 cites·6 claims
- 0637US8119059B2Apparatus for manufacturing molten ironsCHO MIN-YOUNG·Filed 2006·Granted Feb 21, 2012·0 cites·9 claims
- 0737US2002136670A1Device for preventing back mixture in fluidized bed reactorFiled 2000·Application pending·0 cites
- 0834US6491738B12-stage fluidized bed type fine iron ore reducing apparatus, and reducing method using the apparatusPO HANG IRON & STEEL·Filed 1999·Granted Dec 10, 2002·3 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →