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EHWA DIAMOND IND CO LTD

Overview
  • Total Patents
    381
  • GoodIP Patent Rank
    34,538
  • Filing trend
    ⇩ 66.0%
About

EHWA DIAMOND IND CO LTD has a total of 381 patent applications. It decreased the IP activity by 66.0%. Its first patent ever was published in 1991. It filed its patents most often in Republic of Korea, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets machine tools, machines and materials and metallurgy are VNI KT I PRIRODNYKH ALMAZOV IN, OSAKA DIAMOND IND and XIAOJUN ZHANG.

Patent filings per year

Chart showing EHWA DIAMOND IND CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Park Hee-Dong 50
#2 Kim Soo-Kwang 39
#3 Lee Seh Kwang 38
#4 Lee Joo Han 37
#5 Kim Soo Kwang 29
#6 Kim Youn Chul 27
#7 Kim Jong-Ho 27
#8 Hong Jae Hyun 25
#9 Park Hee Dong 23
#10 Choi Jong Suk 23

Latest patents

Publication Filing date Title
KR20170097595A Manufacturing method of drill bit for drilling
KR20170040176A Cmp pad conditioner
KR20180042736A Method of chemical mechanical polishing, method of manufacturing semiconductor device and apparatus of manufacturing semiconductor
KR20180025442A Core drill for grinding glass film and method of manufacturing the drill
KR20170016804A Brazing bond type diamond tool with excellent cuttability
KR20180009605A Apparatus for hoding tip
KR20170123816A Lapping plate with excellent lapping rate for brittle materials having high hardness and using apparatus for polishing substrate using the same
KR20160043915A Cutting Tool And Method For Manufacturing the Cutting Tool
KR20170040811A Edge wheel for edge grinding of substrate having passage of cooling water and method of manufacturing the wheel
US2015336291A1 Brazing bond type diamond tool with excellent cuttability and method of manufacturing the same
KR20160048629A Drill bit for drilling and method of manufacturing the same
KR20150058127A Cmp pad conditioner
KR20160121086A Composition of resin binder for grinding tools
KR20160120922A Diamond cutting wheel with excellent heat dissipation and stability
KR20160119299A One-touch type grinding unit for grinder with excellent prevention effect on transform and breakaway
KR101556565B1 Tool for grinding
KR101512960B1 Honing driver backing rotator
KR20150062148A Method for controlling cutting force of wire saw and wire sawing device using the same
KR20160053654A Tip holder with wheel tip for forming scribing line, holder joint with the tip holder, and tip holder installation with the them
KR20150145279A Apparatus of grinding for artificial joint