Patents

Dongkyoung Lee, "Laser welding device with temperature and humidity function; 온습도 조절기능을 갖춘 레이저 용접장치", 10-2022-0165257, Korea, 2022.11.30

Dongkyoung Lee, Seungik Son, ”The writing instrument capable of distance measurement; 거리 측정이 가능한 필기구”,10-2402695, Korea, 2022.05.23

Dongkyoung Lee, "Laser processing equipment for lithium metal battery using chamber; 챔버를 이용한 리튬금속전지의 레이저 가공장치", 10-2346497(PCT/KR2020/011542), Korea, 2021.12.28

Dongkyoung Lee,  Trinh Ngoc Lanh, "Specimen marker with reflective surface and clip formed and tensile test system using that 반사면 및 클립이 형성된 시편마커 및 이를 이용한 인장시험 시스템", 10-2333436, Korea, 2021.11.26

Dongkyoung Lee, Seungik Son, ”Metal plate machining method; 금속판 가공방법”,10-2021-0127324, Korea, 2021.09.27

Dongkyoung Lee, Seungik Son, ”Metal plate machining method; 금속판 가공방법”,10-2021-0127319, Korea, 2021.09.27

Dongkyoung Lee, Youngjin Seo, Dongok Yu, "Welding slag removal method using laser; 레이저를 이용한 용접부 슬래그 제거 방법", 10-2021-0122028, Korea, 2021.09.13

Dongkyoung Lee, Youngjin Seo, "Welding slag removal system using laser; 레이저를 이용한 용접부 슬래그 제거 시스템", 10-2021-0121281, Korea, 2021.09.10

Joonghan Shin, Dongkyoung Lee, "Method for manufacturing of honeycomb structure using plastic film; 플라스틱 필름을 이용한 허니컴 구조체 제조방법”,10-2224330, Korea, 2021.03.02

Dongkyoung Lee, Seungik Son, ”The writing instrument capable of distance measurement; 거리 측정이 가능한 필기구”,10-2021-0020163, Korea, 2021.02.15

Dongkyoung Lee, Sungsik Seok, ”Wet towel keeping device for fire escape; 화재 대피용 물수건 보관장치”,10-2197521, Korea, 2020.12.24

Dongkyoung Lee, "Laser processing equipment for lithium metal battery using chamber; 챔버를 이용한 리튬금속전지의 레이저 가공장치", 10-2020-0108657 (PCT/KR2020/011542), Korea, 2020.08.27

Dongkyoung Lee, Trinh Ngoc Lanh, "Specimen marker with reflective surface and clip formed and tensile test system using that; 반사면 및 클립이 형성된 시편마커 및 이를 이용한 인장시험 시스템", 10-2020-0108274, Korea, 2020.08.27

Dongkyoung Lee, Sungsik Seok, "Shoes cleaning device for vehicle; 차량용 신발털이 장치", 10-2140893, Korea, 2020.07.28

Dongkyoung Lee, Hongjun Park, "Wallet for blind person; 시각장애인용 지갑", 10-2117787, Korea, 2020.05.26

Dongkyoung Lee, Dongkyu Park, "Fork lift with apparatus for sensing irregularity on road; 노면 요철감지장치가 구비된 지게차", 10-2100070, Korea, 2020.04.06

Dongkyoung Lee, Jee-Heon Jeong, "Cell culture well tool; 세포 배양 웰 툴", 10-2021230, Korea, 2019.09.05

Dongkyoung Lee, Jiyong Lee, "Chair including umbrella stand assembly; 우산꽃이가 포함된 의자", 10-2016294, Korea, 2019.08.24

Dongkyoung Lee,"Device for supplying laser of laser-guided cutting machine; 레이저 절삭기의 레이저 출력 장치", 10-1999437, Korea, 2019.07.05

Dongkyoung Lee,"Wheelchair with crutch supporting means ; 목발 거치수단이 구비된 휠체어", 10-2019-0071802, Korea, 2019.06.17

Dongkyoung Lee, Sungsik Seok, ”Wet towel keeping device for fire escape; 화재 대피용 물수건 보관장치”,10-2019-0071838, Korea, 2019.06.17

Dongkyoung Lee, Jee-Heon Jeong, Jaeguen Shin, Youngjin Seo,"Cell culture container case; 세포 배양 용기 케이스", 10-1983943, Korea, 2019.05.23

Dongkyoung Lee, Youngjin Seo, Jaeguen Shin, "Laser concrete cutting device; 비직선 절삭면을 갖도록 하는 콘크리트 절삭장치", 10-1983940, Korea, 2019.05.23

Dongkyoung Lee, Chan Ho Kim, "Hanger; 옷걸이", 10-1938054, Korea, 2019.01.07

Joonghan Shin, Dongkyoung Lee, "Method for manufacturing of honeycomb structure using plastic film; 플라스틱 필름을 이용한 허니컴 구조체 제조방법”,10-2019-0075359, Korea, 2019.06.25

Dongkyoung Lee, DongKyu Park, ”Fork lift with apparatus for sensing irregularity on road; 노면 요철감지장치가 구비된 지게차”,10-2019-0001157, Korea, 2019.01.04

Dongkyoung Lee, "Device for prevents the formation of ice on the inner part of the freezer door; 도어와 인접하는 냉동고 내실 벽면의 결빙을 방지하는 결빙 방지 장치", 10-1871632, Korea, 2018

Dongkyoung Lee, Chan Ho Kim, Seung Hwan, Lee, "Refrigerator; 냉장고", 10-1872614, Korea, 2018

Dongkyoung Lee, Chan Ho Kim, Moo-Hyun Bang, "A Composition of Cutting-Film Enhanced Infrared Ray's Absorptance, and the Cutting-Film with the Composition ; 적외선 흡수율이 증진된 절삭용 필름 조성물 및 상기 조성물을 함유하는 절삭용 필름", 10-1917498, Korea, 2018.

Dongkyoung Lee,Seung Hwan Lee, "Two-way charging apparatus of mobile communication terminal; 핸드폰의 양방향 충전기", 10-1901517, Korea, 2018.

Dongkyoung Lee,Geon Ho Kim, "Method for manufacturing cell culture case, and the cell culture case manufactured by the method; 세포배양 케이스를 제조하는 제조방법 및 상기 방법으로 제조된 세포배양 케이스", 10-1885464, Korea, 2018.

Dongkyoung LeeChan Ho Kim, Moo-Hyun Bang, "Method for cutting a ceramic, the method using a cutting-film enhanced infrared ray's absorptance ;적외선 흡수율이 증진된 절삭용 필름을 이용하는 도자기 절삭방법", 10-1869644, Korea, 2018

Dongkyoung Lee,Chan Ho Kim, Hyung Kyu Kang, "Multi-layered tray of rotation type; 회전형 다층 쟁반", 10-1855600, Korea, 2018.

Dahoon Ahn, Kyungwho Choi, Dongkyoung Lee ,"De-icing device using piezoelectric element; 압전소자를 이용한 제빙장치", 10-1838596, Korea, 2018

Dongkyoung Lee,Min Joon Choi, " Safety concent; 안전 콘센트", 10-1816475, Korea, 2018.

Dongkyoung Lee, Jee-Heon Jeong, "Cell culture well tool; 세포 배양 웰 툴", 10-2018-0027688, Korea, 2018

Dongkyoung Lee,Jiyong Lee, "Chair including umbrella stand assembly; 우산꽃이가 포함된 의자", 10-2017-0093276, Korea, 2017.07.24

Dongkyoung Lee, Min Joon Choi, " Set inclusion of concent and plug, and the set be improved reverse direction;역방향으로 개선된 콘센트 및 플러그 세트", 10-1807460, Korea, 2017.

Dongkyoung Lee, Chan Ho Kim, Moo-Hyun Bang, "Composition for film; 필름용 조성물", 10-2017-0027364, Korea, 2017

Dongkyoung Lee, You-min Chang, Ju Hong Kim, Yang Kyu Kim, “Tantalum capacitor and method of fabricating the same; 탄달륨 캐패시터 및 그의 제조 방법”, 10-2016-0046105, Korea, 2016

Youn Gyu Han, Dongkyoung Lee, “Method for manufacturing multi-layered printed circuit board; 다층인쇄회로기판의 제조방법”, 10-1548421, Korea, 2015.

Youn Gyu Han, Dongkyoung Lee, “Method for manufacturing printed circuit board; 인쇄회로기판의 제조방법”, 10-1540151, Korea, 2015.

Dongkyoung Lee, You-min Chang, Ju Hong Kim, “Manufacturing method of chip inductor; 칩 인덕터의 제조 방법”, 10-2015-0130546, Korea, 2015

Dongkyoung Lee, You-min Chang, Ju Hong Kim, “Chip inductor and manufacturing method of the same; 칩 인덕터 및 그 제조 방법”, 10-2015- 0125427, Korea, 2015

Dongkyoung Lee, You-min Chang, Ju Hong Kim, “Method for forming electrode of passive device and passive device having exterior electrode; 수동소자 외부전극 형성방법 및 외부전극을 갖는 수동소자”, 10-2015-0098295, Korea, 2015

Youn Gyu Han, Dongkyoung Lee, “Method for manufacturing multi-layered printed circuit board”, 2014-1111622, Japan, 2014

Youn Gyu Han, Dongkyoung Lee, “Method for manufacturing multi-layered printed circuit board”, 14/294701, USA, 2014

Dongkyoung Lee, Han Kim, “Method of manufacturing for the printed circuit board: 인쇄회로기판 제조 방법”, 10-2013-0108514, Korea, 2013