Inventor
CHAO ZU-WEN
TW17 patents
⚠️ This page may combine multiple inventors who share the name “CHAO ZU-WEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IND TECH RES INST
16 patentsUS5745465AApr 28, 1998
Digital video disc pick-up head system
IND TECH RES INST23 citations92
US6341116B1Jan 22, 2002
Compact optical pick-up head employing non-diffractive element
IND TECH RES INST14 citations83
US5748602AMay 5, 1998
Single-lens optical pick-up head for accessing a DVD disc and a CD disc by switching between two optical states
IND TECH RES INST19 citations82
US5748574AMay 5, 1998
Double focal-point magneto-optic pick-up head
IND TECH RES INST11 citations73
US5712843AJan 27, 1998
Miniature optical access head apparatus
IND TECH RES INST12 citations73
US6370104B1Apr 9, 2002
DVD reading-writing pick-up head employing multiple wavelengths
IND TECH RES INST6 citations62
US6343059B1Jan 29, 2002
Reading-writing pickup head
IND TECH RES INST4 citations62
US5715102AFeb 3, 1998
Beam shaper device for optical read/write heads
IND TECH RES INST4 citations62
US5438386AAug 1, 1995
Coaxial master-slave lens photographing apparatus
IND TECH RES INST4 citations62
US5278811AJan 11, 1994
Magneto-optic recording and playback system
IND TECH RES INST4 citations62
US7190654B2Mar 13, 2007
Disc burner and its control method
IND TECH RES INST5 citations58
US7197163B2Mar 27, 2007
Watermark embedding method based on DCT subband image characters
IND TECH RES INST2 citations56
US5146515ASep 8, 1992
Structure of lens combination for optical fiber fine displacement detecting system
IND TECH RES INST6 citations54
US6483799B1Nov 19, 2002
Rewritable DVD-RAM disc
IND TECH RES INST1 citations52
US7376342B2May 20, 2008
Method of determining disc type for disc burners
IND TECH RES INST1 citations49
US7383585B2Jun 3, 2008
Optical discs with controllable access times and method of the same
IND TECH RES INST0 citations48