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Inventor

Wei-Kang Cheng

Inventor
Taoyuan County, TW

Overview

44→
Patents
2009–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 44 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H10Hprimary
H10HInorganic light-emitting semiconductor devices having potential barriers22%
H01LSemiconductor devices18%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1017%
LOC267%
F21KNon-electric light sources using luminescence6%
F21VFunctional features or details of lighting devices or systems thereof6%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted6%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses3%
H10DInorganic electric semiconductor devices3%
LOC133%
PatentTitleYear
10,916,517Redistribution layer metallic structure and method202110,670,244Light emitting device202010,644,209Light-emitting device and light-emitting apparatus comprising the same202010,586,895Light-emitting diode chip having a plurality of indentations202010,340,431Light-emitting device with metal bump201910,306,714Semiconductor component and light emitting device using same201910,256,371Light-emitting diode chip201910,247,395Light emitting device20199,876,153Light-emitting device20189,741,699'Light emitting device'20179,661,698'Light emitting component and light emitting device using same'20179,368,483'Illumination device capable of decreasing shadow of lighting effect'2016D0758329'Partial semiconductor light emitting component'20169,324,694'Light-emitting diode'20169,296,946'Method of manufacturing oxynitride phosphor'20169,240,796'PLL frequency synthesizer with multi-curve VCO implementing closed loop curve searching'20169,220,135'Light emitting component and light emitting device using same'2015D0745194'Base for a light emitting unit'20159,166,116'Light emitting device'20159,130,129'Light-emitting diode chip'20159,123,868'Light emitting element and illumination device thereof'20159,117,589'Capacitor structure and stack-type capacitor structure'20159,065,022'Light emitting apparatus'2015D0732488'Partial semiconductor light emitting component'2015D0732487'Partial semiconductor light emitting component'2015D0731681'LED unit'2015D0731680'LED unit'2015D0731090'LED unit'2015D0731089'LED unit'2015D0731087'LED unit'2015D0731091'LED unit'20159,048,848'PLL frequency synthesizer with multi-curve VCO implementing closed loop curve searching using charge pump current modulation'2015D0731088'LED unit'20159,030,241'PLL frequency synthesizer with multi-curve VCO implementing closed loop curve searching'20159,029,898'Light emitting diode and illumination device using same'2015D0724552'Partial semiconductor light emitting component'20158,933,469'High-voltage light-emitting device'20158,927,303'Method for manufacturing light-emitting diode'20158,872,556'PLL frequency synthesizer with multi-curve VCO implementing closed loop curve searching using charge pump current modulation'20148,698,175'Light-emitting diode'20148,658,443'Method for manufacturing light emitting device'20148,188,493'Light emitting diode with independent electrode patterns'20128,053,797'Light-emitting device with reflection layer and structure of the reflection layer'20117,635,871'Light emitting diode with higher illumination efficiency'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2017Patents assigned to FORMOSA EPITAXY INC (31)· patent assignee history
2009–2019Based in Taoyuan, TW· patent location history
2012–2016Patents assigned to CHENG WEI-KANG (5)· patent assignee history
2012–2016Patents assigned to PAN SHYI-MING (5)· patent assignee history
2012–2020Based in Taoyuan County, TW· patent location history
2014–2016Patents assigned to MICREL INC (4)· patent assignee history
2014–2016Based in Milpitas, CA, US· patent location history
2017–2020Patents assigned to EPISTAR CORP (10)· patent assignee history
2018–2021Based in Hsinchu, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FORMOSA EPITAXY INC312009–2017
EPISTAR CORP102017–2020
CHENG WEI-KANGself52012–2016
PAN SHYI-MING52012–2016
MICREL INC42014–2016
Locations
LocationPatentsSpan
Taoyuan County, TW252012–2020
Taoyuan, TW102009–2019
Hsinchu, TW52018–2021
Milpitas, California, US42014–2016