Learn more

PKL CO LTD

Overview
  • Total Patents
    68
  • GoodIP Patent Rank
    174,617
About

PKL CO LTD has a total of 68 patent applications. Its first patent ever was published in 1999. It filed its patents most often in Republic of Korea, Taiwan and United States. Its main competitors in its focus markets optics, semiconductors and electrical machinery and energy are SIGMA MERUTETSUKU KK, NSK TECHNOLOGY CO LTD and BAE YOUNG CHEOL.

Patent filings in countries

World map showing PKL CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Choi Sang Soo 42
#2 Kang Han Byul 15
#3 Kim Jong Min 15
#4 Cho Hyun Joon 15
#5 Kim Yong Dae 13
#6 Hur Ik Boum 11
#7 Yun Sang Pil 10
#8 Kwon Hyeok Ju 7
#9 Kim Myung Young 6
#10 Yoon Young Jin 6

Latest patents

Publication Filing date Title
KR20210016814A Method for manufacturing mask having three or more tone
KR20210016813A Halt-tone phase shift mask and manufacturing method
KR20180066354A Defect repairing method for transflective area of half tone mask and defect repair half tone mask using the same
KR20170060226A Phase shift mask for display and method of manufacturing the same
KR20160056427A Halftone phase shift mask using destructive interference effect and method of manufacturing the same
KR20150105682A Self cleaning type developing apparatus and developing method using the same
KR20140048062A Photo mask for improving a resolution and a throughput on flat panel display and method for manufacturing the same
KR101403391B1 Exposure method with multi-wavelength using halftone phase shift mask
KR20140102874A Halftone phase shift mask and method of manufacturing the same
KR20140047979A Photo mask for improving a resolution and a throughput on flat panel display and method for manufacturing the same
KR20140006132A Halftone phase shift mask with excellent resolution and depth of focus and method of manufacturing the same
KR101320693B1 Fine particles complex removal apparatus conducting detachment and vacuum suction of fine particles at the same time and fine particles removal method using the same
KR20120031928A Size adjustabele aperture and sputter apparatus containing the same
KR20130028167A Gray tone mask for fabricating flat panel display and method for fabricating the same
KR20120093501A Appratus for cleaning and dry mask pick and method for cleaning particle of mask pick using the same
KR20120081656A Photo mask using optical filter selectively transmitting light wavelength
KR20120081655A Photo mask containing halftone pattern and optical proximity correction pattern and method for fabricating thereof
KR101114738B1 Size adjustabele aperture and sputter apparatus containing the same
KR20120007573A Photolithography apparatus containing size adjustabele aperture for fabricating mask and method for fabricting phase shift mask using thereof
KR20110136247A Photomask and method for fabricating the same