LexDanaLexDanabeta
Inventor

Chang Hee Lee

Inventor
Daejeon, KR

Overview

111→
Patents
1996–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 111 as inventor

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

H04Bprimary
H04BTransmission17%
H04JMultiplex communication12%
G02BOptical elements, systems or apparatus6%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%
B82YSpecific uses or applications of nanostructures3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
H04LTransmission of digital information, e.g. telegraphic communication3%
H10KOrganic electric solid-state devices3%
C03BManufacture, shaping, or supplementary processes2%
PatentTitleYear
10,830,766Fibrous substrate and method for making202010,741,768Organic light-emitting diode with high efficiency202010,662,107Borosilicate glass, light guide plate comprising the same and fabricating methods thereof202010,622,705Antenna module and electronic device including the same202010,611,672Borosilicate glass, light guide plate comprising the same and fabricating methods thereof202010,580,560Coil module202010,559,758Organic light emitting diode of high efficiency202010,560,155Information transmitter202010,553,950Antenna module and electronic device having the same202010,553,345Coil device and apparatus including the same202010,522,913Antenna module201910,511,095Antenna module201910,488,586Glass light-guide plate and manufacturing method thereof201910,476,162Wireless communication antenna and mobile device including the same201910,405,693Apparatus for manufacturing drink201910,407,776Method and system for die compensation and restoration using high-velocity oxy-fuel thermal spray coating and plasma ion nitriding201910,207,950Glass light guiding plate20199,873,084Reducing agent pyrolysis system for selective catalytic reduction apparatus20189,714,470'Method and system for die compensation and restoration using high-velocity oxy-fuel thermal spray coating and plasma ion nitriding'20179,539,523'Integrated waste catalyst cleaning apparatus for RHDS and VRDS processes and method thereof'20179,482,130'Selective catalytic reduction and catalytic regeneration system'20169,410,949'Label-free detection of renal cancer'20169,407,062'Wavelength-maintaining Fabry-Perot Laser Diode and optical transmitter including same'20169,328,286'Phosphor and light emitting device'20169,130,671'Apparatus for monitoring failure positions in wavelength division multiplexing-passive optical networks and wavelength division multiplexing-passive optical network systems having the apparatus'20159,083,469'Device and method for controlling lasing wavelength of tunable laser, and a wavelength division multiplexed-passive optical network having the same'20159,073,752'Quantum dot light emitting element and method for manufacturing the same'20159,067,021'Needleless injector'20158,861,963'Shared high-intensity broadband light source for a wavelength-division multiple access passive optical network'20148,818,200'Multiple star wavelength division multiplexing passive optical networks using a wavelength assignment method'20148,798,478'Low-cost WDM source with an incoherent light injected fabry-perot laser diode'20148,704,255'Phosphor and light emitting device'20148,687,972'Multiple star wavelength division multiplexing passive optical networks using a wavelength assignment method'20148,552,416'Quantum dot light emitting diode device and display device therewith'20138,455,046'Thin film patterning apparatus and method of fabricating color filter array substrate using the same'20138,449,351'Lower unit for glass polishing system and glass polishing method using the same'20138,449,355'Glass polishing system'20138,440,118'Master mold, master mold fabrication method, and method for fabricating liquid crystal display device using the same'20138,442,400'Wavelength division multiplexed-passive optical network capable of high-speed transmission of an optical signal by using modulation format having high spectral efficiency'20138,428,460'Wavelength division multiplexing passive optical network having multiple branches of optical distribution'20138,326,151'Low-cost WDM source with an incoherent light injected Fabry-Perot laser diode'20128,293,161'Apparatus for fabricating flat panel display device method of fabricating the same and method of fabricating flat panel display device using the same'20128,290,370'Wavelength division multiplexing passive optical network for providing both of broadcasting service and communication service and central office used thereof'20128,268,214'Soft mold and method for fabricating the same'20128,266,925'Apparatus for manufacturing float glass'20128,268,458'Carbazole compounds and organo-electroluminescent devices using the same'20128,262,437'Glass polishing system'20128,239,616'Semiconductor device comprising flash memory and address mapping method'20128,233,297'Multi-stage power supply'20128,201,419'Apparatus for manufacturing float glass'20128,201,420'Apparatus for manufacturing float glass'20128,180,221'Wavelength-division multiplexed passive optical network for reducing degradation in noise characteristic of wavelength-locked fabry-perot laser diodes'20128,171,171'Data synchronization method and system between devices'20128,136,374'Float bath system for manufacturing float glass and cooling method of the same'20128,116,628'Wavelength-division multiplexed passive optical network for embodying wavelength-independent operation of wavelength-locked Fabry-Perot laser diodes by injecting a low noise broadband light source'20128,078,061'Wavelength division multiplexed-passive optical network capable of high-speed transmission of an optical signal by using modulation format having high spectral efficiency'20118,073,334'Optical modulation method and system in wavelength locked FP-LD by injecting broadband light source using mutually injected FP-LD'20118,051,677'Float bath system for manufacturing float glass and cooling method of the same'20118,012,548'Flat panel display and method of fabricating the same'20118,013,517'Phosphor material, coating phosphor composition, and light emitting device'20118,003,023'Master mold, master mold fabrication method, and method for fabricating liquid crystal display device using the same'20117,939,750'Polymer solar cell and method of manufacturing the same'20117,936,994'Broadband light source using fabry perot laser diodes'20117,920,797'Receiver having an apparatus for varying decision threshold level and an optical transmission system having the same'20117,912,372'Optical access network using wavelength-locked WDM optical source injected by incoherent light'20117,903,979'Low-cost WDM source with an incoherent light injected Fabry-Perot laser diode'20117,858,003'Soft mold having back-plane attached thereto and method for fabricating the soft mold'20107,858,014'Apparatus for fabricating flat panel display device method of fabricating the same and method of fabricating flat panel display device using the same'20107,834,266'Photovoltaic device'20107,829,896'Thin film transistor, manufacturing method thereof, and TFT LCD using the same'20107,773,838'Method and network architecture for upgrading legacy passive optical network to wavelength division multiplexing passive optical network based next-generation passive optical network'20107,646,978'Methods and apparatuses to provide a wavelength division-multiplexing passive optical network based on wavelength-locked wavelength-division-multiplexed light sources'20107,635,839'Method for fabricating neutron supermirror using neutron monochromator structures'20097,612,962'Housing opening and closing apparatus for DVD camcorder'20097,613,398'Wavelength-tunable light source and wavelength-division multiplexed transmission system using the source'20097,596,317'Long-reach wavelength division multiplexing passive optical networks by using the position adjustment of broadband light source'20097,593,647'Apparatuses and methods for automatic wavelength locking of an optical transmitter to the wavelength of an injected incoherent light signal'20097,560,687'Polarized neutron guide'20097,515,626'Light source capable of lasing that is wavelength locked by an injected light signal'20097,469,102'Wavelength-division-multiplexing passive optical network utilizing fiber fault detectors and/or wavelength tracking components'20087,426,402'System and method for connecting peripheral devices with mobile communication terminal'20087,423,690'Image photographing apparatus and assembly method thereof'20087,405,751'Image photographing apparatus having photographic mode based on position of camera unit'20087,369,771'Optical network terminator and optical network connection method using it'20087,349,631'Wavelength-tunable light source and wavelength-division multiplexed transmission system using the source'20087,327,957'Wavelength-tunable light source and wavelength-division multiplexed transmission system using the source'20087,171,123'Method for decreasing and compensating the transmission loss at a wavelength-division-multiplexed passive optical network and an apparatus therefor'20077,106,974'Low-cost WDM source with an incoherent light injected fabry-perot laser diode'20067,092,634'Bidirectional wavelength division multiplexed self-healing ring network composed of add fiber and drop fiber'20067,019,132'Porphyrin derivatives'20066,999,653'4-port wavelength selective router'20066,977,731'Method and apparatus for enhancing the resolving power of a tunable optical filter'20056,952,308'Multi-stage bidirectional optical amplifier'20056,894,830'Bi-directional optical-amplifier module'20056,863,409'Apparatus for generating parallel beam with high flux'20056,832,017'Bidirectional add/drop multiplexer and bidirectional add/drop amplifier module for band-split bidirectional networks'20046,826,327'Tunable narrow band optical filter'20046,775,058'Wide band optical amplifier'20046,735,391'Automatic retrieval of wavelength-division multiplexed ring networks'20046,728,026'Dynamically tunable optical amplifier and fiber optic light source'20046,671,045'Apparatus and method for measuring optical signal-to-noise ratio'20036,597,482'Multiplexing/demultiplexing apparatus for wavelength division multiplexed system and wavelength division multiplexed passive optical subscriber networks using the same apparatus'20036,559,984'Apparatus for monitoring optical path based on the identification of optical cross-connect input ports'20036,538,784'Multicast-capable optical cross-connect with layered modularity'20036,529,656'Bi-Directional add/drop multiplexer and bidirectional add/drop amplifier module for wavelength interleaved bidirectional networks'20036,501,573'Apparatus and method for monitoring the qualities of optical signal using clock amplitude'20026,396,574'Apparatus for measuring the wavelength, optical power and optical signal-to-noise ratio of each optical signal in wavelength-division multiplexing optical communication'20026,362,911'Burst mode optical receiver using two amplifiers having different bandwidth'20026,188,509'Simple bidirectional add/drop amplifier module based on a single multiplexer'20016,129,556'Computer system using a card having an expansion edge'20005,502,366'Battery pack coupler for camcorder with sliding lever'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2012Patents assigned to SAMSUNG ELECTRONICS CO LTD (11)· patent assignee history
2000–2020Based in Suwon-si, KR· patent location history
2003–2016Patents assigned to KOREA ADVANCED INST SCI & TECH (31)· patent assignee history
2003–2014Based in Taejon, KR· patent location history
2004–2014Based in Daejon, KR· patent location history
2008–2020Based in Daejeon, KR· patent location history
2010–2015Patents assigned to LG DISPLAY CO LTD (10)· patent assignee history
2010–2019Based in Seoul, KR· patent location history
2011–2015Patents assigned to LEE CHANG-HEE (25)· patent assignee history
2011–2020Patents assigned to LG CHEMICAL LTD (11)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOREA ADVANCED INST SCI & TECH312003–2016
LEE CHANG-HEEself252011–2015
LG CHEMICAL LTD112011–2020
SAMSUNG ELECTRONICS CO LTD111996–2012
LG DISPLAY CO LTD102010–2015
Locations
LocationPatentsSpan
Daejeon, KR232008–2020
Taejon, KR212003–2014
Suwon-si, KR122000–2020
Seoul, KR92010–2019
Daejon, KR82004–2014