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CHANGJO ENGINEERING CO LTD

Overview
  • Total Patents
    23
About

CHANGJO ENGINEERING CO LTD has a total of 23 patent applications. Its first patent ever was published in 2003. It filed its patents most often in Republic of Korea, Taiwan and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets semiconductors, electrical machinery and energy and chemical engineering are ADAPTIVE PLASMA TECH CORP, RADIION TECH CO LTD and NIHON SHINKOSHINGI CO LTD.

Patent filings in countries

World map showing CHANGJO ENGINEERING CO LTDs patent filings in countries

Patent filings per year

Chart showing CHANGJO ENGINEERING CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kim Kyung Soo 20
#2 Kim Jeong Woo 15
#3 Jin Kyung Bok 15
#4 Song Du Gyu 12
#5 Kim Sae Hoon 8
#6 Cho Jung Hee 8
#7 Kim Jong Pil 7
#8 Kang Bang Kwon 6
#9 Lee Woo Young 5
#10 Yoo Soon Jong 5

Latest patents

Publication Filing date Title
KR20120066736A Bonidg device and method for thermal pressusing using ceramic heater
KR20110131039A Plasma ashing apparatus
KR20110128649A Plasma generating apparatus
KR20110083273A Illuminating apparatus using led
KR20110006562A Device for maintaining level
KR20090112364A Sterilizing method using cold plasma
KR20090039504A Full-wavelength ultrasonic welder of horizontal vibration type, and ultrasonic bonding apparatus having the same
KR20090039502A Half-wavelength ultrasonic welder of horizontal vibration type, and ultrasonic bonding apparatus having the same
KR20090029553A Apparatus for sterilizing with ozone plasma, and driving method thereof
KR20080082212A In-line processing apparatus of cleaning and bonding for mounting semiconductor device on the substrate
KR20080012020A Method of bonding rfid chip using ultra sonic
KR20080011848A Method of bonding solder ball using ultra sonic
KR20070082944A Ultrasonic bonding machine and ultrasonic point bonding method
WO2005074333A1 Apparatus of generating glow plasma on a wide surface under atmospheric pressure
KR20050078181A Cold atmospheric pressure plasma generator for a wide surface plasma treatment
KR100516329B1 Cold atmospheric pressure plasma generator for a wide surface plasma treatment
KR20050077941A Atmospheric pressure bulk plasma generator
KR20050077942A Atmospheric plasma generator with ignitor
KR20050013803A wire winding apparatus of inductor
KR20040085532A Coil winding apparatus of transformer