Inventor
LIU MING-HSIN
TW9 patents
⚠️ This page may combine multiple inventors who share the name “LIU MING-HSIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IND TECH RES INST
7 patentsUS6508639B2Jan 21, 2003
Combination double screw rotor assembly
IND TECH RES INST14 citations82
US6312242B1Nov 6, 2001
Asymmetric double screw rotor assembly
IND TECH RES INST15 citations82
US6257839B1Jul 10, 2001
Double screw rotor assembly with electrically controlled clearance adjustment means
IND TECH RES INST16 citations81
US6257854B1Jul 10, 2001
Double screw rotor assembly having means to automatically adjust the clearance by pressure difference
IND TECH RES INST19 citations80
US6341951B1Jan 29, 2002
Combination double screw rotor assembly
IND TECH RES INST20 citations79
US7278839B2Oct 9, 2007
Multi-stage vacuum pump
IND TECH RES INST9 citations71
US7425710B2Sep 16, 2008
Anode layer particle beam device
IND TECH RES INST2 citations55