Inventor
TSENG TZU-FENG
TW23 patents
⚠️ This page may combine multiple inventors who share the name “TSENG TZU-FENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EPISTAR CORP
9 patentsUS7326967B2Feb 5, 2008
Light emitting diode having an omnidirectional reflector including a transparent conductive layer
EPISTAR CORP67 citations95
US7095765B2Aug 22, 2006
Light emitter with a voltage dependent resistor layer
EPISTAR CORP21 citations93
US7683383B2Mar 23, 2010
Light emitting device having circuit protection unit
EPISTAR CORP20 citations92
US6987287B2Jan 17, 2006
Light emitting diode having an adhesive layer and a reflective layer
EPISTAR CORP30 citations92
US6876005B2Apr 5, 2005
Light emitting diode having an adhesive layer
EPISTAR CORP44 citations92
US7358540B2Apr 15, 2008
Organic adhesive light-emitting device with ohmic metal contact
EPISTAR CORP18 citations82
US7008858B2Mar 7, 2006
Light emitting diode having an adhesive layer and a reflective layer and manufacturing method thereof
EPISTAR CORP9 citations73
US7009217B2Mar 7, 2006
Light emitting diode having an adhesive layer and a reflective layer and manufacturing method thereof
EPISTAR CORP10 citations73
US7172909B2Feb 6, 2007
Light emitting diode having an adhesive layer and a reflective layer and manufacturing method thereof
EPISTAR CORP4 citations62
PRIMAX ELECTRONICS LTD
7 patentsUS6951159B2Oct 4, 2005
Multi-functional trimming apparatus
PRIMAX ELECTRONICS LTD19 citations87
US7131363B2Nov 7, 2006
Paper-cutting apparatus and paper-holding device of the same
PRIMAX ELECTRONICS LTD12 citations84
US6990884B2Jan 31, 2006
Vertical rotary multi-functional trimming apparatus
PRIMAX ELECTRONICS LTD13 citations84
US6931974B2Aug 23, 2005
Cutting apparatus
PRIMAX ELECTRONICS LTD14 citations84
US6269721B1Aug 7, 2001
Electric paper punch
PRIMAX ELECTRONICS LTD19 citations84
US6966247B2Nov 22, 2005
Cutting apparatus
PRIMAX ELECTRONICS LTD9 citations74
US7131212B1Nov 7, 2006
Marking device
PRIMAX ELECTRONICS LTD6 citations54
RITEK CORP
4 patentsUS6616052B2Sep 9, 2003
Digital business card
RITEK CORP25 citations84
US6391395B1May 21, 2002
Method of fabricating a polysilicon layer
RITEK CORP13 citations73
US6404722B1Jun 11, 2002
Method of increasing recording density and capacity of a compact disc
RITEK CORP13 citations70
US6506543B1Jan 14, 2003
Method of photolithography using super-resolution near-field structure
RITEK CORP6 citations59