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MARUSHIMA SANGYO KK

Overview
  • Total Patents
    23
  • GoodIP Patent Rank
    231,687
About

MARUSHIMA SANGYO KK has a total of 23 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 environmental technology are DALIAN BOXIN SPECIAL STEEL PRODUCT CO LTD, LVIVORGRES OPEN JOINT STOCK CO and NISHI NIPPON PLANT KOGYO KK.

Patent filings in countries

World map showing MARUSHIMA SANGYO KKs patent filings in countries
# Country Total Patents
#1 Japan 23

Patent filings per year

Chart showing MARUSHIMA SANGYO KKs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Yamamoto Keiji 20
#2 Yukami Fumihiro 1
#3 Shimaoka Tadashi 1
#4 Matsui Kai 1

Latest patents

Publication Filing date Title
JP2017206864A Laterally-pulling gate system
JP2015014167A Hydraulic type opening/closing device of tide gate
JP2013194403A Floating tide gate for embankment
JP2012057427A Movable gate device
JP2009281105A Waterproof door device
JP2009114674A Muffler of weir
JP2007170112A Waterproof door
JP2006348549A Trashrack rake
JP2006316461A Cut-off device
JP2006299754A Roof weir
JP2006233552A Watertight door
JP2006045840A Auto-screen device
JP2004060166A Branch equipment of snow flowing ditch
JP2003155878A Waterproof device and waterproof structure
JP2002309664A Gate
JP2002212935A Swing gate
JP2001234674A Waterroof door
JP2000273846A Trash removing device
JPH08311845A Dust separator
JPH08120650A Surface water-intake apparatus