O; Changhak

Patent Applications and Registrations

Patent applications and USPTO patent grants for O; Changhak.The latest application filed is for "wireless power transmission device and operating method therefor".

Company Profile

7.5.8

O; Changhak - Gyeonggi-do KR
O.; Changhak - Suwon-si Gyeonggi-do

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Power transmission device and method for detecting metal substance Grant 11,456,625 - Kim , et al. September 27, 2	2022-09-27
Wireless Power Transmission Device And Operating Method Therefor App 20220149658 - O.; Changhak ; et al.	2022-05-12
Stacked coil structure and electronic device including the same Grant 11,177,666 - Song , et al. November 16, 2	2021-11-16
Electronic device and power control method for wireless charging Grant 11,159,040 - O , et al. October 26, 2	2021-10-26
Electronic device including a plurality of wireless charge coils and operating method thereof Grant 11,128,169 - Kim , et al. September 21, 2	2021-09-21
Electronic Device And Multi-wireless Transmission Power Control Method Based On States Of Plurality Of External Electronic Devices App 20210143683 - HA; Mincheol ; et al.	2021-05-13
Power Transmission Device And Method For Detecting Metal Substance App 20210036554 - KIM; Kwangseob ; et al.	2021-02-04
Method For Controlling Wireless Transmission Power And Electronic Device Including Same App 20210036550 - HA; Mincheol ; et al.	2021-02-04
Electronic device and method for controlling wireless transmit power by detecting foreign object Grant 10,673,285 - Ha , et al.	2020-06-02
Electronic Device And Power Control Method For Wireless Charging App 20200119578 - O; Changhak ; et al.	2020-04-16
Electronic Device Including A Plurality Of Wireless Charge Coils And Operating Method Thereof App 20200036227 - KIM; Kwangseob ; et al.	2020-01-30
Stacked Coil Structure And Electronic Device Including The Same App 20200006949 - SONG; Keumsu ; et al.	2020-01-02
Electronic Device And Method For Controlling Wireless Transmit Power By Detecting Foreign Object App 20190267849 - HA; Mincheol ; et al.	2019-08-29

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