Inventor
YOO CHOONG SIK
KR10 patents
⚠️ This page may combine multiple inventors who share the name “YOO CHOONG SIK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG ELECTRO MECH
8 patentsUS6667566B2Dec 23, 2003
Piezoelectric transformer for fluorescent lamp
SAMSUNG ELECTRO MECH22 citations92
US5843371ADec 1, 1998
Lead-free soldering material having superior solderability
SAMSUNG ELECTRO MECH21 citations89
US6509699B2Jan 21, 2003
Digital controlled electronic ballast with piezoelectric transformer
SAMSUNG ELECTRO MECH14 citations82
US6600273B2Jul 29, 2003
High-power electronic ballast for fluorescent lamp
SAMSUNG ELECTRO MECH15 citations81
US6495947B1Dec 17, 2002
Piezoelectric ceramic composition, and high power output transformer made of the same composition
SAMSUNG ELECTRO MECH9 citations72
US6492763B2Dec 10, 2002
Piezoelectric ceramic composition, and high power output transformer made of the same composition
SAMSUNG ELECTRO MECH8 citations72
US6544433B1Apr 8, 2003
Piezoelectric ceramic composition, and high power output transformer made of the same composition
SAMSUNG ELECTRO MECH2 citations61
US6533957B2Mar 18, 2003
Piezoelectric ceramic composition, and high power output transformer made of the same composition
SAMSUNG ELECTRO MECH2 citations61