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KOJIMAGUMI KK

Overview
  • Total Patents
    42
About

KOJIMAGUMI KK has a total of 42 patent applications. Its first patent ever was published in 1981. It filed its patents most often in Japan. Its main competitors in its focus markets civil engineering, environmental technology and measurement are GTO SUBSEA AS, MOROOKA KK and UEDA IND.

Patent filings in countries

World map showing KOJIMAGUMI KKs patent filings in countries
# Country Total Patents
#1 Japan 42

Patent filings per year

Chart showing KOJIMAGUMI KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kojima Akio 26
#2 Kojima Noriaki 23
#3 Narita Tadao 14
#4 Maeda Taketoshi 11
#5 Suzuki Tadayori 7
#6 Kojima Tomonori 5
#7 Katase Hideo 4
#8 Fujii Motoo 3
#9 Tomimatsu Hiroaki 2
#10 Suzuki Toshio 2

Latest patents

Publication Filing date Title
JP2010047959A Earth and sand feeding device
JP2009214967A Dredge work system and level excavation method of dredged soil
JP2009097156A Method and unit for measuring sediment flow in sediment transport system
JP2008274569A Labor-saving grabbing workboat
JP2008162754A Constant volume feeder for article to be transported and method of calculating feed amount of article to be transported
JP2008115610A Dredging apparatus
JP2008045378A Grab bucket type soil lifting device and pneumatic conveyance system for slurry-like soil
JP2007332600A Pneumatic transport system for slurry sediment
JP2007295878A Germination-stimulated seed-forming apparatus and germination-stimulated seed-forming method
JP2007137143A Mooring equipment for float structure
JP2007063935A Dredging equipment
JP2007063934A Sediment transportation system
JP2007023694A Dredging system to deposit sediment of water bottom
JP2005155024A Sediment discharge method and sediment discharge work ship
JP2004092386A Feed pipe water backflow prevention device for treated soil placing device
JP2005068917A Revetment structure and construction method for revetment
JP2004092077A Method and system for dredging work in large-capacity reservoir
JP2004009795A Dredging boat with dredging and transporting system for dredged soil, and method for dredging and transporting dredged soil
JP2004011184A Dredging device and dredging method for lightweight earth and sand
JP2003113620A River dredged earth and sand transporting method