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OSAKA DENKI CO LTD

Overview
  • Total Patents
    251
About

OSAKA DENKI CO LTD has a total of 251 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and Germany. Its main competitors in its focus markets machine tools, electrical machinery and energy and packaging and shipping are HUMBLOT BERNARD, TRW NELSON BOLZENSCHWEISS TECH and AUTOMATED WELDING SYSTEMS INC.

Patent filings in countries

World map showing OSAKA DENKI CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 247
#2 United States 2
#3 Germany 1
#4 United Kingdom 1

Patent filings per year

Chart showing OSAKA DENKI CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakane Yutaka 42
#2 Taisaku Takeshi 30
#3 Kamiyama Fumio 29
#4 Yoshimitsu Akio 26
#5 Yuba Tsutomu 26
#6 Kajimura Seishi 23
#7 Yonemura Shigeo 18
#8 Hattori Tadashi 14
#9 Tsuji Masaaki 12
#10 Ootsu Arishi 12

Latest patents

Publication Filing date Title
JP2002219569A Drive/control device for welding wire feed motor and inverter type arc welding machine
JP2002103038A Arc welding machine provided with electric shock reducing function
JP2001321939A Power supply device for multi torch type arc welding
JP2000050644A Current control method for switching direct current to alternating current in heavy-current level, and controller thereof
JP2000045004A Current controlling method switching direct current of large current into alternating current and controlling device therefor
JPH11309582A Spot welding method
JPH11277248A Seam welding electrode
JPH1110347A Plasma cutting torch
JPH10230358A Tig welding equipment used in tig welding and burn removing in common
JPH09253841A Automatic arc welding of reinforcing bar
JPH09256637A Automatically arc-welding device for reinforcement
JPH09253893A Backing strip for welding
JPH09234564A Steel bar arc welding method and equipment therefor
JPH09122913A Dc arc machining device
JPH09122912A Dc arc machining device
JPH09108837A Method and device for pulse arc welding
JPH09103882A Safety lock mechanism for wire reel shaft in welding wire feeding device
JPH09103881A Wire feeding device for automatic welding
JPH0970662A Power source device
JPH0938773A Arc welding machine