Inventor
KWON SUNG-HWAN
KR12 patents
Patents
12 patentsUS8522389B2Sep 3, 2013
Manufacturing method of needle-shaped bristles having short taper length and a toothbrush by same manufacturing method
KWON YOUNG-JUN10 citations83
US8336967B2Dec 25, 2012
Method of tapering bristles for toothbrushes, and toothbrush having bristles manufactured by said method
KWON YOUNG-JUN7 citations83
US8333436B2Dec 18, 2012
Processing method for taper of needle-shaped bristle enhanced throughput
KWON YOUNG-JUN11 citations83
US8172337B2May 8, 2012
Toothbrush having needle-shaped bristles with various end points and manufacturing method thereof
KWON YOUNG-JUN12 citations83
US8029069B2Oct 4, 2011
Method of manufacturing toothbrush with needle-shaped bristles, and toothbrush manufactured by the same
KWON YOUNG-JUN8 citations83
US8918945B2Dec 30, 2014
Toothbrush with needle-shaped bristles for improving tooth and gum contacting force and teeth-cleaning performance, and method for manufacturing same
KWON YOUNG-JUN2 citations62
US8424145B2Apr 23, 2013
Toothbrush having needle-shaped bristles with various end points and manufacturing method thereof
KWON YOUNG-JUN3 citations62
US8403425B2Mar 26, 2013
Processing method for taper of needle-shaped bristle enhanced throughput
KWON YOUNG-JUN3 citations62
US8186765B2May 29, 2012
Method of manufacturing toothbrush with needle-shaped bristles, and toothbrush manufactured by the same
KWON YOUNG-JUN4 citations62
US8136889B2Mar 20, 2012
Needle-shaped bristle and method of manufacturing the same
KWON YOUNG-JUN4 citations62
US7938492B2May 10, 2011
Toothbrush having pressure relief unit and method of producing same
KWON YOUNG-JUN5 citations62
US7832811B2Nov 16, 2010
Method of manufacturing toothbrush with needle-shaped bristles and toothbrush manufactured by the same
KWON YOUNG-JUN5 citations62