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PEARL KOGYO CO LTD

Overview
  • Total Patents
    134
  • GoodIP Patent Rank
    190,106
About

PEARL KOGYO CO LTD has a total of 134 patent applications. Its first patent ever was published in 2000. It filed its patents most often in China, Japan and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, electrical machinery and energy and machines are KASUGA DENKI INC, FH HILDESHEIM HOLZMINDEN GOE and PLASNIX CO LTD.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Saeki Noboru 26
#2 Ni Tuqiang 12
#3 Wang Zhaoxiang 11
#4 Liang Jie 10
#5 Ikawa Mikihiro 9
#6 Tao Zheng 8
#7 Yin Zhiyao 8
#8 Liu Zhiqiang 7
#9 Jinno Masafumi 7
#10 Pares Kevin 6

Latest patents

Publication Filing date Title
EP3808839A1 Transformed cell production method
CN112055747A Method for introducing selected molecule and composition containing inhibitor
CN103295870A Plasma etching equipment and etching method
CN103227091A Plasma processing device
CN103117203A Device and method for plasma etching process treatment
CN103117202A Endpoint detection device and method of plasma treatment process
CN103094297A Manufacturing method and used etching method of complementary metal-oxide-semiconductor transistor (CMOS) imaging sensor
CN103050364A Circuit for increasing temperature of substrate in plasma treatment cavity
CN103021773A Porous composite ceramic portion, preparing method thereof and plasma treating cavity
CN103035508A Critical dimension shrink method
CN103050396A Multilayered medium etching method
CN103021912A Semiconductor etching device and etching method of semiconductor structure
CN103021783A Etching method of semiconductor structure
CN103021934A Method for forming through hole or contact hole
CN103035470A Semiconductor etching device and semiconductor etching method
CN102931133A Method for improving etching uniformity in silicon piercing process
CN102931045A Method for processing etching process monitoring signal and etching end-point control method
CN102856150A Plasma reaction cavity cleaning device and plasma reaction cavity cleaning method thereof
CN102899636A Method for cleaning metal-organic chemical vapor deposition (MOCV) reaction chamber in situ
CN102899635A Method for cleaning metal-organic chemical vapor deposition (MOCV) reaction chamber in situ