Inventor
JI YONG JU
KR12 patents
Patents
12 patentsUS11336983B1May 17, 2022
Receiver module having pressure equilibrium structure
EM TECH CO LTD6 citations73
US11395060B2Jul 19, 2022
Receiver having pressure equilibrium structure
EM TECH CO LTD4 citations72
US11696059B2Jul 4, 2023
Two-way receiver having front bass duct
EM TECH CO LTD2 citations71
US11463815B2Oct 4, 2022
Yoke assembly for two-way receiver and two-way receiver having the same
EM TECH CO LTD2 citations71
US10899577B2Jan 26, 2021
Automatic winding device
EM TECH CO LTD3 citations71
US10667028B2May 26, 2020
Electric device including microspeaker module with vibration function and wearable acoustic transducer
EM TECH CO LTD2 citations71
US11564026B2Jan 24, 2023
Earphone having pressure equilibrium structure
EM TECH CO LTD1 citations61
US12137311B2Nov 5, 2024
Earphone with duct unit dividing pressure equilibrium hole and back hole
EM TECH CO LTD0 citations59
US11363370B2Jun 14, 2022
Receiver module integrated with duct
EM TECH CO LTD0 citations59
US10536771B2Jan 14, 2020
Dynamic receiver with resonance protector for earphone
EM TECH CO LTD0 citations51
US11528563B2Dec 13, 2022
Hybrid receiver having fixing bracket for drivers
EM TECH CO LTD0 citations50
US11212616B2Dec 28, 2021
Bonding structure of diaphragm for receiver
EM TECH CO LTD0 citations50