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MARUNAKA KK

Overview
  • Total Patents
    60
  • GoodIP Patent Rank
    120,160
  • Filing trend
    ⇩ 66.0%
About

MARUNAKA KK has a total of 60 patent applications. It decreased the IP activity by 66.0%. Its first patent ever was published in 1993. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets thermal processes, environmental technology and mechanical elements are OOO STP REGION, RUNRANG TECH HUANGSHI CO LTD and L & M RADIATOR INC.

Patent filings in countries

World map showing MARUNAKA KKs patent filings in countries

Patent filings per year

Chart showing MARUNAKA KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakajima Kazuo 30
#2 Kosaka Tsuneo 6
#3 Kimura Shinji 4
#4 Yamauchi Keiji 3
#5 Manabe Yuichiro 3
#6 Okada Noboru 2
#7 Nakajima Ichio 2
#8 Nakao Naoji 2
#9 Nakao Asao 2
#10 Shinoda Hajime 2

Latest patents

Publication Filing date Title
JP2020193654A Washer and screws with washers
JP2020180651A Looseness prevention bolt, member connection structure and member connection method
JP2020133887A Connecting bracket
JP2020036398A Solar panel fixing structure and fixture used therefor
JP2019099980A Coating method of silk fiber, and coated yarn, fabric, or fiber product
JP2018189097A Washer, double-side washer, washer set, and screw with washer
JP2018128121A Coupling washer and screw with washer
JP2018007568A Rotary cutting blade for bush cutter
JP2016014450A Washer and screw with washer
JP2015230041A Washer and screw with washer
JP2015224671A Washer and screw with washer
JP2015218874A Washer and screws with washer
WO2015118670A1 Washer, washer provided with nut, and washer provided with bolt
WO2015118669A1 Washer, nut, bolt, and locking structure for said screw parts
JP2015034608A Pipeline support
JP2014024331A Lining material and lining method using the same
JP2014117234A Output controller of bush cutter
JP2013011053A Anchor bolt holder for concrete foundation and retainer with anchor bolt
JP2012060900A Walking type tiller
JP2011147416A Walking tiller