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TOA GROUT KOGYO CO

Overview
  • Total Patents
    183
  • GoodIP Patent Rank
    135,356
  • Filing trend
    ⇧ 50.0%
About

TOA GROUT KOGYO CO has a total of 183 patent applications. It increased the IP activity by 50.0%. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets civil engineering, mechanical elements and machines are CELLER MASCHF GEB, DIMITROFF TED R and MAJUS LTD.

Patent filings per year

Chart showing TOA GROUT KOGYO COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ooka Shinkichi 90
#2 Kitajima Hisashi 64
#3 Sano Sakae 41
#4 Cho Mitsuyoshi 35
#5 Ooka Yuzo 14
#6 Ooka Nobuyoshi 14
#7 Iimori Hiroshi 14
#8 Oooka Shinkichi 12
#9 Nishio Akira 10
#10 Nishio Tadashi 9

Latest patents

Publication Filing date Title
JP2020026650A Sand control dam subbank
JP2020012248A Slope stabilization structure and slope stabilization method
JP2019218723A Sand control dam
JP2019027077A Rock fall protective fence
JP2018115420A Guard fence
JP2018021333A Erosion control dam
JP2017198296A Capture member
JP2017179851A Flying-thing protective barrier
JP2017179850A Flying-thing protective barrier
JP2016176307A Snow melting pipe cleaning method and closing tool for use in the same
JP2016037773A Wire net
JP2015186898A Water cutoff method of pipeline
JP2015175449A Partial repairing method for existing pipe
JP2015124566A Floatation preventive method of manhole
JP2015123399A Duct cleaning device
JP2015080745A Pipeline cleaning method
JP2014156766A Floatation prevention structure and method of manhole
JP2013159895A Disaster prevention system for tsunami
JP2013147874A Reinforcing structure of tubular body
JP2013040477A Connection structure of sewer pipe and intermediate structure