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PRE TECH CO LTD

Overview
  • Total Patents
    87
  • GoodIP Patent Rank
    142,139
  • Filing trend
    ⇩ 66.0%
About

PRE TECH CO LTD has a total of 87 patent applications. It decreased the IP activity by 66.0%. Its first patent ever was published in 1996. It filed its patents most often in Japan, Taiwan and United States. Its main competitors in its focus markets semiconductors, chemical engineering and machines are AKRION TECHNOLOGIES INC, PLANAR SEMICONDUCTOR INC and XI AN WEIZHENG ELECTRONIC SCIENCE & TECHNOLOGY CO LTD.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Shiba Kazuhiko 27
#2 Naito Yosuke 24
#3 Harada Yasuyuki 22
#4 Kato Masayuki 17
#5 Goto Akihiro 15
#6 Netsu Shigeyoshi 9
#7 Kinoshita Tetsuo 9
#8 Sone Hisaaki 8
#9 Koga Tetsuji 8
#10 Amano Yutaka 7

Latest patents

Publication Filing date Title
JP2020098843A Substrate processing apparatus
JP2020038888A Etching device and etching method
JP2018067683A Wafer holding device and wafer processing device
JP2018067684A Wafer holding device and wafer processing device
JP2015228395A Cleaning method of substrate and cleaning device of substrate
JP2015153927A Cleaning method and cleaning apparatus of cleaned substrate
JP2015036141A Ultrasonic cleaning method and ultrasonic cleaning device
JP2014165248A Cleaning method of substrate to be cleaned and cleaning apparatus of substrate to be cleaned
JP2014154695A Cleaning method and cleaning device of substrate
JP2014038958A Immersion type cleaner
JP2014038957A Cleaning device using mixing nozzle
JP2014038959A Cleaner using spin table
JP2012049247A Single wafer processing cleaning equipment
JP2011165911A Cleaning apparatus, method for cleaning object to be cleaned, and method for oscillating ultrasonic waves
JP2010258084A Substrate holding jig and cleaning device
JP2010232528A Single wafer cleaning apparatus
JP2010010652A Single wafer cleaning apparatus
JP2010103394A Method of holding substrate, substrate holding jig, and cleaning apparatus
JP2010080531A Ultrasonic cleaning apparatus and method
JP2009248050A Ultrasonic cleaning device