Learn more

YANAGISAWA CONCRETE KOGYO KK

Overview
  • Total Patents
    21
About

YANAGISAWA CONCRETE KOGYO KK has a total of 21 patent applications. Its first patent ever was published in 1982. It filed its patents most often in Japan. Its main competitors in its focus markets civil engineering and environmental technology are MIYAMA KOGYO KK, CLARKE J B and SMITH SAMUEL D.

Patent filings in countries

World map showing YANAGISAWA CONCRETE KOGYO KKs patent filings in countries
# Country Total Patents
#1 Japan 21

Patent filings per year

Chart showing YANAGISAWA CONCRETE KOGYO KKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Yanagisawa Yoshio 16
#2 Kusaka Shiyuuji 4
#3 Kusaka Shuji 3
#4 Takahashi Eizo 2
#5 Kusaka Isamu 2
#6 Hama Yoshiaki 1
#7 Haraguchi Shinji 1

Latest patents

Publication Filing date Title
JP2014091961A Slab bridge
JP2013057225A Arched cover
JP2011183362A Solid-liquid separator
JP2008144394A Foot holder for manhole and the like
JP2004027584A Invert forming device in manhole
JP2003343002A Gutter
JP2003313931A Side ditch structure and laying method for the same
JP2002115262A Small calibered manhole and its manufacturing method
JP2001329603A Oval type pipe mounting wall with invert
JP2000303545A Inclined block attached/detached type invert integrated pipe fitting wall and manufacture thereof
JPH11348014A Manufacture of straight wall and device
JPH09316904A Moving type step
JPH09195498A Foot rest for inspection and buried tank having the foot rest
JPH08291530A Pipe fitting wall with foothold for inspection
JPH08311899A Manhole bottom board and installation method of the bottom board
JPH08302717A Manufacture of pipe fitting wall, and grinding blade used therefor
JPH07286334A Invert integral type pipe mounting wall and manufacture thereof
JPS6019833A Burying and fixing of insert for step attachment of manhole
JPS59220532A Inlaying fixation of insert for fitting step of manhole
JPS59220531A Inlaying fixation of insert for fitting step of manhole