Inventor

CHANG JUEY-FONG

TW3 patents

⚠️ This page may combine multiple inventors who share the name “CHANG JUEY-FONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HONGFUJIN PREC IND SHENZHEN

2 patents

US8047043B2Nov 1, 2011

Punch die and punch machine using the same

HONGFUJIN PREC IND SHENZHEN5 citations58

US7854308B2Dec 21, 2010

Flipping apparatus

HONGFUJIN PREC IND SHENZHEN3 citations54

KUO PEI-CHIN

1 patent

US8069895B2Dec 6, 2011

Film-removing device

KUO PEI-CHIN2 citations51