Seungcheol LEE

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Ansan-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Duct structure of earphone speaker unit
- Patent number 11,425,488
- Issue date Aug 23, 2022
- Bujeon Co., Ltd.
- Minkoo Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Grill-integrated low-pass filter and speaker including the same
- Patent number 11,076,229
- Issue date Jul 27, 2021
- Bujeon Co., Ltd.
- Minkoo Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Structure of microspeaker
- Patent number 10,631,080
- Issue date Apr 21, 2020
- Bujeon Co., Ltd.
- Seungcheol Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DUCT STRUCTURE OF EARPHONE SPEAKER UNIT
- Publication number 20210352398
- Publication date Nov 11, 2021
- BUJEON CO., LTD.
- Minkoo PARK
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GRILL-INTEGRATED LOW-PASS FILTER AND SPEAKER INCLUDING THE SAME
- Publication number 20210185444
- Publication date Jun 17, 2021
- BUJEON CO., LTD.
- Minkoo PARK
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IN-EAR EARPHONE INCLUDING DRUM SAFETY FILTER PATH
- Publication number 20200221205
- Publication date Jul 9, 2020
- BUJEON CO., LTD.
- Minkoo PARK
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
STRUCTURE OF MICROSPEAKER
- Publication number 20190289388
- Publication date Sep 19, 2019
- BUJEON CO., LTD.
- Seungcheol LEE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE