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MARUYAMA KOGYO

Overview
  • Total Patents
    94
About

MARUYAMA KOGYO has a total of 94 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, Canada and Taiwan. Its main competitors in its focus markets transport, machines and environmental technology are YASAKA KOGYO KK, TEKLAS KAUCUK SANAYI VE TICARET A S and TAMWORTH PLASTICS LTD.

Patent filings in countries

World map showing MARUYAMA KOGYOs patent filings in countries
# Country Total Patents
#1 Japan 91
#2 Canada 1
#3 Taiwan 1
#4 United States 1

Patent filings per year

Chart showing MARUYAMA KOGYOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakakuma Kazuyoshi 30
#2 Takeda Shiyouichi 20
#3 Denda Mamoru 16
#4 Aoyanagi Kazuharu 14
#5 Koshi Hideto 13
#6 Murayama Kouichi 13
#7 Kurasaki Kazuyoshi 13
#8 Shiromoto Kazuo 13
#9 Shiroyama Satoshi 13
#10 Komiyama Genichi 13

Latest patents

Publication Filing date Title
JP2011236729A Compression/decompression device and soft ground improvement method
JP2012219487A Settlement measuring apparatus, method of construction for improving weak foundation using the same, method of grasping dynamic state of foundation to prepare banking structure thereon and method of grasping dynamic state of foundation to bury underground installation therein
JP2012112103A Soft ground improvement method
JP2012072585A Improvement method of weak ground
JP2011231568A Pore water pressure measuring device, soft ground improvement method using the same, method for determining dynamic state of ground for underground installation, and method for determining dynamic state of ground for banking structure installation
JP2011084874A Soft ground improvement method
JP2010084406A Soft ground improving method, and soft ground improving construction apparatus for use in the method
JP2009262382A Tarpaulin
JP2007278008A Improving method for soft ground
JP2006002392A Construction method for improving soft ground
JP2005207164A Soil improvement method for weak ground, and filled structure prepared by using the method
JP2004218377A Improvement method for soft ground
TW200406522A An improving method and device for a poor ground
JP2004150026A Soft ground improving device, and horizontal draining material and water collecting pipe used for soft ground improving device
JP2003211198A Sludge treatment apparatus
JP2003055951A Improving method and improving device for soft ground
JP2003049418A Vacuum soil testing machine
JP2003019461A Mechanical parking garage coating process
JP2004316068A Improvement method for soft ground and improvement device
JP2000328550A Method and device for soft ground improvement