Joong Hak Kwon

Person

Busan, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Aerosol generating device, method for controlling same, and chargin...
- Patent number 12,279,653
- Issue date Apr 22, 2025
- KT & G Corporation
- Seung Kiu Jeong
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Aerosol generating device, method for controlling same, and chargin...
- Patent number 11,253,003
- Issue date Feb 22, 2022
- KT & G Corporation
- Seung Kiu Jeong
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Aerosol generating device, method for controlling same, and chargin...
- Patent number 11,241,046
- Issue date Feb 8, 2022
- KT & G Corporation
- Seung Kiu Jeong
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Electric device including microspeaker module with vibration functi...
- Patent number 10,667,028
- Issue date May 26, 2020
- Em-Tech. Co., Ltd.
- Yong Ju Ji
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Neckband wireless sound transducer
- Patent number 10,334,342
- Issue date Jun 25, 2019
- Em-Tech. Co., Ltd.
- Choong Sheek Hong
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Microspeaker enclosure with air adsorbent in resonance space
- Patent number 10,057,678
- Issue date Aug 21, 2018
- Em-Tech. Co., Ltd.
- Joong Hak Kwon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sound transducer with ventilation structure
- Patent number 9,473,837
- Issue date Oct 18, 2016
- Em-Tech. Co., Ltd.
- Kyu Dong Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device with side acoustic emission type speaker device
- Patent number 9,307,314
- Issue date Apr 5, 2016
- Samsung Electronics Co., Ltd.
- Ji-Hoon Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Suspension for a sound transducer
- Patent number 9,277,305
- Issue date Mar 1, 2016
- Em-Tech. Co., Ltd.
- Joong Hak Kwon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Suspension for sound transducer
- Patent number 9,185,477
- Issue date Nov 10, 2015
- Em-Tech. Co., Ltd.
- Ji Hoon Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Vibration module for sound transducer
- Patent number 9,088,840
- Issue date Jul 21, 2015
- Em-Tech. Co., Ltd.
- Kyu Dong Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bonding structure of diaphragm for microspeaker
- Patent number 9,027,700
- Issue date May 12, 2015
- Em-Tech. Co., Ltd.
- Ji Hoon Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High-output microspeaker
- Patent number 9,025,808
- Issue date May 5, 2015
- Em-Tech. Co., Ltd.
- Joong Hak Kwon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Acoustic transducer device
- Patent number 8,794,374
- Issue date Aug 5, 2014
- Em-Tech. Co., Ltd.
- Ji Hoon Kim
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
ELECTRICALLY HEATED SMOKING ARTICLE
- Publication number 20230371582
- Publication date Nov 23, 2023
- EM-TECH. Co., Ltd.
- Seung Kiu Jeong
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...
- Publication number 20220117312
- Publication date Apr 21, 2022
- KT&G Corporation
- Seung Kiu JEONG
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...
- Publication number 20220087321
- Publication date Mar 24, 2022
- KT&G Corporation
- Seung Kiu JEONG
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...
- Publication number 20200352255
- Publication date Nov 12, 2020
- KT&G Corporation
- Seung Kiu JEONG
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...
- Publication number 20190380390
- Publication date Dec 19, 2019
- KT&G Corporation
- Seung Kiu JEONG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electric Device Including Microspeaker Module with Vibration Functi...
- Publication number 20180242060
- Publication date Aug 23, 2018
- Em-Tech Co., Ltd.
- Yong Ju Ji
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Neckband-Type Wireless Sound Transducer
- Publication number 20180048952
- Publication date Feb 15, 2018
- Em-Tech Co., Ltd.
- Choong Sheek Hong
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Active Noise Reduction Headset Device with Hearing Aid Features
- Publication number 20170345408
- Publication date Nov 30, 2017
- Em-Tech Co., Ltd.
- Choong Sheek Hong
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Micro-Speaker Having an Air Adsorbent
- Publication number 20170195781
- Publication date Jul 6, 2017
- Em-Tech Co., Ltd.
- Ghi Yuun Kang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Microspeaker Enclosure with Air Adsorbent in Resonance Space
- Publication number 20170188136
- Publication date Jun 29, 2017
- Em-Tech Co., Ltd.
- Joong Hak Kwon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electric Device Including Microspeaker Module with Vibration Function
- Publication number 20170171651
- Publication date Jun 15, 2017
- Em-Tech Co., Ltd.
- Yong Ju Ji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Microspeaker Diaphragm Bonding Structure
- Publication number 20150208172
- Publication date Jul 23, 2015
- Em-Tech Co., Ltd.
- Ji Hoon Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Three-Magnet Type Microspeaker
- Publication number 20150010196
- Publication date Jan 8, 2015
- Em-Tech Co., Ltd.
- Hyun Woo Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC DEVICE WITH SIDE ACOUSTIC EMISSION TYPE SPEAKER DEVICE
- Publication number 20140369533
- Publication date Dec 18, 2014
- Ji-Hoon Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BONDING STRUCTURE OF DIAPHRAGM FOR MICROSPEAKER
- Publication number 20140318885
- Publication date Oct 30, 2014
- Em-Tech Co., Ltd.
- Ji Hoon Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SUSPENSION FOR SOUND TRANSDUCER
- Publication number 20140321691
- Publication date Oct 30, 2014
- Em-Tech Co., Ltd.
- Ji Hoon Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HIGH-OUTPUT MICROSPEAKER
- Publication number 20140169593
- Publication date Jun 19, 2014
- Em-Tech Co., Ltd.
- Joong Hak Kwon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
VIBRATION MODULE FOR SOUND TRANSDUCER
- Publication number 20140119578
- Publication date May 1, 2014
- Em-Tech Co., Ltd.
- Kyu Dong Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND TRANSDUCER WITH VENTILATION STRUCTURE
- Publication number 20140119592
- Publication date May 1, 2014
- Em-Tech Co., Ltd.
- Kyu Dong Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SUSPENSION FOR A SOUND TRANSDUCER
- Publication number 20140029784
- Publication date Jan 30, 2014
- Em-Tech Co., Ltd.
- Joong Hak Kwon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ACOUSTIC TRANSDUCER DEVICE
- Publication number 20130133975
- Publication date May 30, 2013
- Em-Tech Co., Ltd.
- Ji Hoon Kim
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Joong Hak Kwon

Person

Patents Grantslast 30 patents

Aerosol generating device, method for controlling same, and chargin...

Aerosol generating device, method for controlling same, and chargin...

Aerosol generating device, method for controlling same, and chargin...

Electric device including microspeaker module with vibration functi...

Neckband wireless sound transducer

Microspeaker enclosure with air adsorbent in resonance space

Sound transducer with ventilation structure

Electronic device with side acoustic emission type speaker device

Suspension for a sound transducer

Suspension for sound transducer

Vibration module for sound transducer

Bonding structure of diaphragm for microspeaker

High-output microspeaker

Acoustic transducer device

Patents Applicationslast 30 patents

ELECTRICALLY HEATED SMOKING ARTICLE

AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...

AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...

AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...

AEROSOL GENERATING DEVICE, METHOD FOR CONTROLLING SAME, AND CHARGIN...

Electric Device Including Microspeaker Module with Vibration Functi...

Neckband-Type Wireless Sound Transducer

Active Noise Reduction Headset Device with Hearing Aid Features

Micro-Speaker Having an Air Adsorbent

Microspeaker Enclosure with Air Adsorbent in Resonance Space

Electric Device Including Microspeaker Module with Vibration Function

Microspeaker Diaphragm Bonding Structure

Three-Magnet Type Microspeaker

ELECTRONIC DEVICE WITH SIDE ACOUSTIC EMISSION TYPE SPEAKER DEVICE

BONDING STRUCTURE OF DIAPHRAGM FOR MICROSPEAKER

SUSPENSION FOR SOUND TRANSDUCER

HIGH-OUTPUT MICROSPEAKER

VIBRATION MODULE FOR SOUND TRANSDUCER

SOUND TRANSDUCER WITH VENTILATION STRUCTURE

SUSPENSION FOR A SOUND TRANSDUCER

ACOUSTIC TRANSDUCER DEVICE