Assignee
EM TECH CO LTD
KR·52 granted patents·34 pending applications·91 citations·filing 2013–2023
Top patents by PatentIndex Score
86 records- 0195US11336983B1Receiver module having pressure equilibrium structureEM TECH CO LTD·Filed 2021·Granted May 17, 2022·6 cites·8 claims
- 0294US11395060B2Receiver having pressure equilibrium structureEM TECH CO LTD·Filed 2021·Granted Jul 19, 2022·4 cites·15 claims
- 0390US9832557B2Slim microspeakerEM-TECH CO LTD·Filed 2015·Granted Nov 28, 2017·13 cites·22 claims
- 0487US11696059B2Two-way receiver having front bass ductEM TECH CO LTD·Filed 2021·Granted Jul 4, 2023·2 cites·6 claims
- 0586US11463815B2Yoke assembly for two-way receiver and two-way receiver having the sameEM TECH CO LTD·Filed 2021·Granted Oct 4, 2022·2 cites·6 claims
- 0685US9027700B2Bonding structure of diaphragm for microspeakerEM TECH CO LTD·Filed 2013·Granted May 12, 2015·10 cites·10 claims
- 0784US12143793B2Diaphragm for high pressure waterproof microspeaker and high pressure waterproof microspeaker including the sameEM TECH CO LTD·Filed 2022·Granted Nov 12, 2024·1 cites·11 claims
- 0884US11381898B2Canal-type earphone having pressure equilibrium structureEM TECH CO LTD·Filed 2021·Granted Jul 5, 2022·12 cites·15 claims
- 0984US10899577B2Automatic winding deviceEM TECH CO LTD·Filed 2018·Granted Jan 26, 2021·3 cites·10 claims
- 1082US11425487B2Translation system using sound vibration microphoneEM TECH CO LTD·Filed 2020·Granted Aug 23, 2022·2 cites·10 claims
- 1182US10728672B2Sound converterEM TECH CO LTD·Filed 2018·Granted Jul 28, 2020·6 cites·12 claims
- 1281US11206500B2Bone conduction speakerEM TECH CO LTD·Filed 2020·Granted Dec 21, 2021·2 cites·10 claims
- 1379US11564026B2Earphone having pressure equilibrium structureEM TECH CO LTD·Filed 2021·Granted Jan 24, 2023·1 cites·12 claims
- 1477US10057678B2Microspeaker enclosure with air adsorbent in resonance spaceEM TECH CO LTD·Filed 2016·Granted Aug 21, 2018·4 cites·4 claims
- 1576US9473837B2Sound transducer with ventilation structureEM-TECH CO LTD·Filed 2013·Granted Oct 18, 2016·5 cites·19 claims
- 1676US9185494B2Inner magnet type microspeakerEM TECH CO LTD·Filed 2014·Granted Nov 10, 2015·5 cites·12 claims
- 1772US10667028B2Electric device including microspeaker module with vibration function and wearable acoustic transducerEM TECH CO LTD·Filed 2018·Granted May 26, 2020·2 cites·14 claims
- 1869US2024016229A1Aerosol Generating Device Authenticated by SignalEM TECH CO LTD·Filed 2023·Application pending·0 cites
- 1968US10419847B2Microspeaker enclosure with porous materials in resonance spaceEM TECH CO LTD·Filed 2017·Granted Sep 17, 2019·2 cites·18 claims
- 2068US2023371582A1Electrically heated smoking articleEM TECH CO LTD·Filed 2023·Application pending·0 cites
- 2167US10419848B2Microspeaker enclosure with porous materials in resonance spaceEM TECH CO LTD·Filed 2017·Granted Sep 17, 2019·2 cites·10 claims
- 2266US10298105B2Linear vibratorEM TECH CO LTD·Filed 2017·Granted May 21, 2019·1 cites·9 claims
- 2364US9185477B2Suspension for sound transducerEM TECH CO LTD·Filed 2013·Granted Nov 10, 2015·2 cites·9 claims
- 2463US12413896B2Two-way speakerEM TECH CO LTD·Filed 2023·Granted Sep 9, 2025·0 cites·6 claims
- 2562US12582154B2Electrically heated smoking articleEM TECH CO LTD·Filed 2023·Granted Mar 24, 2026·0 cites·9 claims
- 2662US9277305B2Suspension for a sound transducerEM TECH CO LTD·Filed 2013·Granted Mar 1, 2016·2 cites·13 claims
- 2761US11368784B2Receiver unit having pressure equilibrium structure and compensation structure for low frequencyEM TECH CO LTD·Filed 2020·Granted Jun 21, 2022·1 cites·5 claims
- 2861US2025262606A1Porous Moisture Absorbent and Atomizer Using SameEM TECH CO LTD·Filed 2023·Application pending·0 cites
- 2958US12408237B2Circuit for sensing and controlling heater voltage in aerosol generatorEM TECH CO LTD·Filed 2020·Granted Sep 2, 2025·0 cites·4 claims
- 3057US10251000B2Hearing assistant device for informing about state of wearerEM TECH CO LTD·Filed 2017·Granted Apr 2, 2019·1 cites·5 claims
- 3157US2022400772A1Portable Aerosol GeneratorEM TECH CO LTD·Filed 2020·Application pending·0 cites
- 3256US11302861B2Hybrid actuator having a flexible printed circuit board for applying an electric current to a piezoelectric element and a coil inside a housing of the hybrid actuatorEM TECH CO LTD·Filed 2019·Granted Apr 12, 2022·0 cites·11 claims
- 3355US12137311B2Earphone with duct unit dividing pressure equilibrium hole and back holeEM TECH CO LTD·Filed 2022·Granted Nov 5, 2024·0 cites·8 claims
- 3454US10484789B2Micro-speaker having an air adsorbentEM TECH CO LTD·Filed 2016·Granted Nov 19, 2019·0 cites·7 claims
- 3553US11337006B2Microspeaker used in microspeaker box filled with porous particlesEM TECH CO LTD·Filed 2020·Granted May 17, 2022·0 cites·8 claims
- 3651US11363370B2Receiver module integrated with ductEM TECH CO LTD·Filed 2020·Granted Jun 14, 2022·0 cites·14 claims
- 3751US11102573B2High-water pressure waterproof microspeakerEM TECH CO LTD·Filed 2019·Granted Aug 24, 2021·0 cites·7 claims
- 3850US10536771B2Dynamic receiver with resonance protector for earphoneEM TECH CO LTD·Filed 2018·Granted Jan 14, 2020·0 cites·12 claims
- 3949US12470862B2Hybrid microspeakerEM TECH CO LTD·Filed 2023·Granted Nov 11, 2025·0 cites·7 claims
- 4049US12267659B2Waterproof microspeakerEM TECH CO LTD·Filed 2023·Granted Apr 1, 2025·0 cites·11 claims
- 4149US11528563B2Hybrid receiver having fixing bracket for driversEM TECH CO LTD·Filed 2021·Granted Dec 13, 2022·0 cites·10 claims
- 4249US11212616B2Bonding structure of diaphragm for receiverEM TECH CO LTD·Filed 2020·Granted Dec 28, 2021·0 cites·6 claims
- 4348US12207046B2Microspeaker enclosure including block formed of porous particlesEM TECH CO LTD·Filed 2022·Granted Jan 21, 2025·0 cites·9 claims
- 4447US11206480B2Open-air type earphone with bracket forming bass pipeEM TECH CO LTD·Filed 2020·Granted Dec 21, 2021·0 cites·7 claims
- 4547US10516945B2High power microspeaker with sub-diaphragmEM TECH CO LTD·Filed 2018·Granted Dec 24, 2019·0 cites·14 claims
- 4646US11206490B2Sound generating actuatorEM TECH CO LTD·Filed 2020·Granted Dec 21, 2021·0 cites·10 claims
- 4746US11115754B2ActuatorEM TECH CO LTD·Filed 2019·Granted Sep 7, 2021·0 cites·5 claims
- 4845US11696508B2Sound vibration sensor using piezoelectric element having cantilever structureEM TECH CO LTD·Filed 2020·Granted Jul 4, 2023·0 cites·11 claims
- 4945US9088840B2Vibration module for sound transducerEM TECH CO LTD·Filed 2013·Granted Jul 21, 2015·0 cites·7 claims
- 5045US2015010196A1Three-Magnet Type MicrospeakerEM TECH CO LTD·Filed 2014·Application pending·0 cites
Showing the top 50 of 86 patent records by PatentIndex Score.
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