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SUMITOMO DENSETSU CORP

Overview
  • Total Patents
    71
About

SUMITOMO DENSETSU CORP has a total of 71 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 environmental technology and mechanical elements are HAFENBAHN GMBH & CO KG, ELIOFORM AG and SHISHIDO TAKAO.

Patent filings in countries

World map showing SUMITOMO DENSETSU CORPs patent filings in countries
# Country Total Patents
#1 Japan 71

Patent filings per year

Chart showing SUMITOMO DENSETSU CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Kamei Hidenobu 20
#2 Kawasaki Masabumi 10
#3 Kawamura Hiroshi 7
#4 Aida Hiroyuki 6
#5 Muraki Hironori 4
#6 Noguchi Takashi 4
#7 Masuda Minoru 3
#8 Tomoda Yoshio 3
#9 Kita Masahiro 3
#10 Shiba Yoshinori 3

Latest patents

Publication Filing date Title
JP2014066056A Filling method for underground-buried pipe
JP2014066055A Method of filling inside of conduit
JP2011148642A Graphitizing furnace
JP2009218875A Am broadcast retransmission system for underground shopping area
JP2008106443A Pipe closing implement for buried-pipe filling method
JP2005211884A Cleaning machine for steel tower
JP2005211885A Coating apparatus for steel tower
JP2005120630A Embedded pipe filling method
JP2005083036A Filling method for buried pipe
JP2005041002A Method and apparatus for adjusting specific gravity of slurry raw solution
JP2005034702A Suspended particle flocculation unit and waste liquid purifying apparatus
JP2004343864A Method of sealing cable, and seal portion of cable
JP2004200999A Antenna fixing metallic assembly
JP2004189521A Slurry mortar
JP2004183814A Soil packing device for back-filling buried pipe
JP2004183358A Cut-off chamber for shield tunnel portal
JP2004183359A Packing clamping device of shield tunnel portal
JP2004167372A Flocculating method and apparatus for suspended particle
JP2003200005A Flocculating method and flocculating apparatus for polluted particle
JP2003230207A Detection grounding tool