Learn more

NAKAGURO KENSETSU KK

Overview
  • Total Patents
    29
About

NAKAGURO KENSETSU KK has a total of 29 patent applications. Its first patent ever was published in 1996. It filed its patents most often in Japan. Its main competitors in its focus markets civil engineering are ARNOLD HAARMANN DR ING, ARNOLD HAARMANN and ALACCHI GEORGES.

Patent filings in countries

World map showing NAKAGURO KENSETSU KKs patent filings in countries
# Country Total Patents
#1 Japan 29

Patent filings per year

Chart showing NAKAGURO KENSETSU KKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Shafts
#2 Mining

Top inventors

# Name Total Patents
#1 Nakaguro Kenichi 26
#2 Shimura Yohei 4
#3 Ariga Teruo 3
#4 Yamamoto Kiyoshi 3
#5 Saito Hiroshi 3
#6 Tatani Shoji 3
#7 Tamai Tatsuro 1
#8 Uozu Naoko 1
#9 Demura Hajime 1
#10 Otsuka Toshiyuki 1

Latest patents

Publication Filing date Title
JP2015025315A Construction method of conduit or tunnel
JP2014142045A Regeneration method of existing pipe
JP2013039636A Method and device for improving efficiency in water of water jet including abrasive jet
JP2012041706A Rotating ring type excavating machine
JP2012041707A Excavating machine equipped with large number of jet nozzles
JP2012001947A Excavator
JP2011241609A Very slow speed rotation mechanism for cutter in tunnel boring machine
JP2010248770A Method of improving ground on highly adhesive cohesive soil layer
JP2010048038A Apparatus and method for cutting and removing underground obstacle from ground surface
JP2006249926A Excavating machine
JP2007169888A Boring method and boring equipment
JP2005320851A Spray nozzle mounting structure for multifunctional injection apparatus
JP2006130377A Mud and/or muddy water granulation device
JP2006009508A Excavator
JP2005324283A Spray nozzle and injection device using the same
JP2005279574A Apparatus for continuously treating dug muddy water
JP2005213749A Boring machine
JP2005213752A Boring machine
JP2005213751A Boring machine
JP2005097830A Excavating machine