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KOTOBUKI TSUSHOU CO LTD

Overview
  • Total Patents
    32
  • GoodIP Patent Rank
    91,198
  • Filing trend
    ⇧ 75.0%
About

KOTOBUKI TSUSHOU CO LTD has a total of 32 patent applications. It increased the IP activity by 75.0%. Its first patent ever was published in 2000. It filed its patents most often in WIPO (World Intellectual Property Organization), China and United States. Its main competitors in its focus markets civil engineering, machines and chemical engineering are KOTOBUKITUSHO CO LTD, Yangzhou hualian coating machinery co ltd and CHEN CHIANG-PEI.

Patent filings in countries

World map showing KOTOBUKI TSUSHOU CO LTDs patent filings in countries
# Country Total Patents
#1 WIPO (World Intellectual Property Organization) 9
#2 China 8
#3 United States 6
#4 Australia 3
#5 Taiwan 3
#6 Hong Kong 2
#7 Canada 1

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Takagi Toshio 29
#2 Shiratake Fumitaka 14
#3 Takagi Jutaro 7
#4 Murata Katsuyuki 7
#5 Shimizu Yasushi 5
#6 Tanigaki Naoto 4
#7 Kaneko Katsumi 3
#8 Fumitaka Shiratake 2
#9 Toshio Takagi 2
#10 Fumitaka Takagi Toshio Shirata 1

Latest patents

Publication Filing date Title
TW202042889A Filter unit, fluid separation device and separation method
WO2020039676A1 Water treatment device and ion concentration adjusted water manufacturing method
WO2020235111A1 Filter unit and separation device and separation method for fluid
WO2019138591A1 Water discharge head equipped with purification function, water purification cartridge, and water faucet device
CN112203985A Drainage head with water purification function, water purification filter core and faucet device
WO2013001948A1 Solution mixture injector
US2005072722A1 Shower head with water purification function