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KOKEN TOOL

Overview
  • Total Patents
    49
About

KOKEN TOOL has a total of 49 patent applications. Its first patent ever was published in 1986. It filed its patents most often in Japan, Taiwan and Republic of Korea. Its main competitors in its focus markets machine tools, machines and mechanical elements are BUCHANAN NIGEL, BRITOOL LTD and NEW WAY TOOLS CO LTD.

Patent filings in countries

World map showing KOKEN TOOLs patent filings in countries
# Country Total Patents
#1 Japan 25
#2 Taiwan 12
#3 Republic of Korea 4
#4 China 3
#5 Germany 2
#6 France 1
#7 Hong Kong 1
#8 United States 1

Patent filings per year

Chart showing KOKEN TOOLs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Suzuki Shoji 24
#2 Yamashita Shoichiro 15
#3 Yamashita Daisuke 7
#4 Yamashita Shoichro 1
#5 Daisuke Yamashita 1
#6 Shoji Suzuki 1
#7 Klaus Mutschlechner 1

Latest patents

Publication Filing date Title
TW201144627A Universal joint
JP2012154413A Universal joint
TW201111118A Ratchet wrench handle
JP2011125970A Socket wrench
JP2011073098A Ratchet wrench handle
JP2011062791A Ratchet wrench handle
JP2010029954A Bit adapter for hammer drill
JP2010029953A Bit adapter of hammer drill
JP2008006514A Torque adaptor for socket wrench
JP2006297508A Extended coupling tool for fastening and loosening bolt or the like
JP2005324269A Socket for anchor bolt setter
JP2005297088A Method for displaying marking in knurled pattern area and its device
JP2005219157A Handle for socket wrench
JP2003326471A Socket for chemical anchor
JP2002239934A Ratchet wrench
TW418149B Socket wrench with a stud therein
JP2001239467A Round ratchet wrench
JP2001239468A Torque adapter
JP2001038645A Socket adapter for chemical anchor
TW397740B A socket with a magnet