LexDanaLexDanabeta
Inventor

Sung Q Lee

Inventor
Daejeon, KR

Overview

45→
Patents
2005–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 45 as inventor

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

H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers8%
G11BInformation storage based on relative movement between record carrier and transducer6%
B82YSpecific uses or applications of nanostructures5%
G01QScanning-probe techniques or apparatus5%
G01SRadio direction-finding5%
G08BSignalling systems, e.g. personal calling systems5%
H02JElectric power networks5%
H10NElectric solid-state devices not otherwise provided for5%
Y10TTechnical subjects covered by former us classification4%
B01DSeparation3%
PatentTitleYear
11,111,203System and method for manufacturing ester-based composition202111,103,803Distillation device and distillation method202111,104,636System and method for manufacturing ester-based composition202111,091,422Method for removing monohydric alcohol from esterification and method for preparing ester composition comprising same202111,065,556Method for separating and purifying mixture having small difference in boiling points202111,065,108Intraocular lens having closed-loop haptic structures2021D0912973Anti-theft backpack202110,758,142Apparatus and method of real-time health and exercise sensor mechanism with biopotential electrode integrated double 3D gyroscope network202010,452,143Apparatus and method of implantable bidirectional wireless neural recording and stimulation201910,390,756Bio-stimulating and bio-signal measuring circuit201910,113,928Pressure sensor and a method for manufacturing the same201810,078,069Device for detecting change in underground medium201810,008,888Wireless power transmission system calculating the battery charge state of the receiver based on the supply impedance of the power source and the summed impedance of the wireless transmitter, wireless receiver, medium therebetween, and battery charge circuit20189,613,508'Security monitoring apparatus and method using correlation coefficient variation pattern of sound field spectrum'20179,594,163'Security and surveillance system and method'20179,362,783'Wireless power transmission apparatus using ultrasound'20169,240,113'Low-power security and intrusion monitoring system and method based on variation detection of sound transfer characteristic'20169,240,688'Ultrasonic wireless power transmitter and receiver apparatuses, and method for wireless charging thereof'20169,219,971'Method of manufacturing a piezoelectric speaker'20159,197,976'Security system based on sound field variation pattern analysis and the method'20159,103,908'Security monitoring system using beamforming acoustic imaging and method using the same'20159,093,633'Charging device with piezoelectric-composite and ultrasonic apparatus with the same'20159,030,917'System for transferring wireless power using ultrasonic wave'20159,030,916'Method and system for monitoring fire based on detection of sound field variation'20158,797,407'Security system and method using measurement of acoustic field variation'20148,712,079'Piezoelectric speaker and method of manufacturing the same'20148,605,920'Condenser microphone having flexure hinge diaphragm and method of manufacturing the same'20138,471,439'Active piezoelectric energy harvester with embedded variable capacitance layer and method of manufacturing the same'20138,422,702'Condenser microphone having flexure hinge diaphragm and method of manufacturing the same'20138,335,329'Piezoelectric speaker and method of manufacturing the same'20128,295,500'Method and apparatus for controlling directional sound sources based on listening area'20128,114,697'Piezoelectric microphone, speaker, microphone-speaker integrated device and manufacturing method thereof'20128,031,558'Forced acoustic dipole and forced acoustic multipole array using the same'20117,871,530'Near-field optical probe based on SOI substrate and fabrication method thereof'20117,812,505'Piezoelectric microspeaker using microelectromechanical systems and method of manufacturing the same'20107,757,247'Small form factor optical/magnetic disk for information storage'20107,720,332'Optical fiber illuminator, method of fabricating optical fiber illuminator, and optical recording head and optical recording and reading apparatus having the optical fiber illuminator'20107,606,132'Cantilever-type near-field probe for optical data storage and method of manufacturing the same'20097,562,374'Form factor disk'20097,550,311'Near-field optical probe based on SOI substrate and fabrication method thereof'20097,540,004'Ultra-small optical/magnetic head actuator with pivot hinge and Halbach magnet array'20097,520,173'Interdigitated electrode for electronic device and electronic device using the same'20097,393,713'Method of fabricating near field optical probe'20087,194,897'Non-contact scanning apparatus using frequency response scheme and scanning method thereof'20076,979,406'Cantilever-type near-field probe for optical data storage and method of manufacturing the same'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2016Patents assigned to KOREA ELECTRONICS TELECOMM (29)· patent assignee history
2005–2009Based in Taejon, KR· patent location history
2008–2021Based in Daejeon, KR· patent location history
2012–2016Patents assigned to LEE SUNG Q (11)· patent assignee history
2012–2014Patents assigned to KIM JONG DAE (7)· patent assignee history
2012–2014Patents assigned to PARK KANG HO (7)· patent assignee history
2017–2019Patents assigned to ELECTRONICS & TELECOMMUNICATIONS RES INST (6)· patent assignee history
2020Based in Seoul, KR· patent location history
2021Based in Euless, TX, US· patent location history
2021Based in Xiamen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOREA ELECTRONICS TELECOMM292005–2016
LEE SUNG Qself112012–2016
KIM JONG DAE72012–2014
PARK KANG HO72012–2014
ELECTRONICS & TELECOMMUNICATIONS RES INST62017–2019
Locations
LocationPatentsSpan
Daejeon, KR392008–2021
Taejon, KR22005–2009
Euless, Texas, US12021
Xiamen, CN12021
Seoul, KR12020