Hwan Ock Choe

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Gyeongsangnam-do, KR

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Patents Grantslast 30 patents

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

Patents Applicationslast 30 patents

Information Patent Application
Electrically Heated Smoking Article
- Publication number 20240016200
- Publication date Jan 18, 2024
- EM-TECH. Co., Ltd.
- Hwan Ock Choe
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
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
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