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OKAMOTO MACHINE TOOL WORKS

Overview
  • Total Patents
    603
  • GoodIP Patent Rank
    34,696
  • Filing trend
    ⇧ 28.0%
About

OKAMOTO MACHINE TOOL WORKS has a total of 603 patent applications. It increased the IP activity by 28.0%. Its first patent ever was published in 1975. It filed its patents most often in Japan, Republic of Korea and United States. Its main competitors in its focus markets machine tools, semiconductors and machines are DAITO ELECTRON CO LTD, HANGZHOU ZHONGGUI ELECTRONIC TECH CO LTD and DOI TOSHIRO.

Patent filings in countries

World map showing OKAMOTO MACHINE TOOL WORKSs patent filings in countries
# Country Total Patents
#1 Japan 546
#2 Republic of Korea 18
#3 United States 16
#4 Taiwan 15
#5 China 6
#6 United Kingdom 2

Patent filings per year

Chart showing OKAMOTO MACHINE TOOL WORKSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kubo Tomio 165
#2 Kobayashi Kazuo 108
#3 Ide Satoru 87
#4 Yamamoto Eiichi 64
#5 Sekida Saburo 42
#6 Mitsui Takahiko 37
#7 Kida Hiroaki 37
#8 Kashiwa Moriyuki 34
#9 Yamada Tsutomu 33
#10 Mochimaru Yoriyuki 31

Latest patents

Publication Filing date Title
KR20210018020A Spinner dryer
JP2020110893A Automatic grinding apparatus
JP2020102481A Grinding method and grinding apparatus for resin-containing composite substrate
JP2020040189A Substrate grinding device and substrate grinding method
JP2020031106A Manufacturing method and manufacturing apparatus for semiconductor devices
JP2019186509A Substrate sucking apparatus
JP2019140162A Method for manufacturing semiconductor device
US2018056481A1 Automatic grinding apparatus
JP2019025612A Internal grinding device
JP2018034297A Automatic grinding device
JP2018183848A Chuck device
JP2018186217A Electrostatic attraction chuck and manufacturing method thereof and manufacturing method of semiconductor device
JP2018075690A Cutting device
JP2018049980A Semiconductor device manufacturing method
JP2018049973A Semiconductor device manufacturing method and semiconductor manufacturing apparatus
JP2017109464A Method for cutting groove for ceramic workpiece
JP2017107993A Flattening processing device of hard-brittle substrate, and method for polishing hard-brittle substrate using the same
JP2017103441A Method for flattening device substrate with bump
JP2017098322A POLISHING APPARATUS AND GaN SUBSTRATE POLISHING PROCESSING METHOD USING THE SAME
JP2016198875A Method for forming grind stone of abrasive wheel