Inventor

CHANG YI-SHAN

TW2 patents

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

TZYH RU SHYNG AUTOMATION CO LT

1 patent

US6000264ADec 14, 1999

Driving mechanism for moving a cutter or pitch control rod in a spring forming machine

TZYH RU SHYNG AUTOMATION CO LT9 citations60

CHANG YI-SHAN

1 patent

US8633908B2Jan 21, 2014

Method of fabricating electronic apparatus

CHANG YI-SHAN0 citations28