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SUMITOMO METALS KOKURA LTD

Overview
  • Total Patents
    38
About

SUMITOMO METALS KOKURA LTD has a total of 38 patent applications. Its first patent ever was published in 2000. It filed its patents most often in Japan, Canada and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, surface technology and coating and mechanical elements are CHENGDU BANGPU ALLOY MATERIALS CO LTD, SHENYANG DALU LASER ENG CO LTD and WILLIAM HERBERT HATFIELD.

Patent filings in countries

World map showing SUMITOMO METALS KOKURA LTDs patent filings in countries
# Country Total Patents
#1 Japan 35
#2 Canada 1
#3 EPO (European Patent Office) 1
#4 United States 1

Patent filings per year

Chart showing SUMITOMO METALS KOKURA LTDs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Kuboki Takashi 5
#2 Matsumoto Hitoshi 5
#3 Kuroda Koichi 5
#4 Sato Takeshi 4
#5 Hirata Koshiro 4
#6 Uno Mitsuo 4
#7 Neishi Yutaka 4
#8 Kawazoe Kenichi 3
#9 Nakazato Fukukazu 3
#10 Kurita Masato 3

Latest patents

Publication Filing date Title
JP2004277811A Steel for iron golf club head and its manufacturing method, and iron golf club head and its manufacturing method
JP2003202010A Washer
JP2003181536A Coil bundling device for hot-rolled wire rod
JP2003166021A Cooling system for hot-rolled wire rod
JP2003156312A Detection method for end-cutting position of hot billet
JP2003147433A Method of producing bloom-rolled product
JP2003147478A Non-heattreated steel
JP2003147432A Method of producing controlled-rolled product
JP2003136104A Rolling device
JP2003136122A Slow cooling apparatus of hot rolled wire
JP2003136135A Method for inspecting and maintaining billet
JP2003113419A Method for manufacturing hot forged component of non- heat treated steel, and hot forged component of non- heat treated steel
JP2003102125A Ground fault detecting apparatus and ground fault detecting system in electric power system
JP2003089854A Steel for shaft of oa apparatus, shaft for oa apparatus, and production method therefor
JP2003053422A Metallic wire and method of manufacturing the same
JP2003053420A Manufacturing method of steel wire, intermediate working equipment train for wire rod and machine structural parts
JP2003049188A Lubricant for cold wire-drawing working, material for cold wire-drawing working and method for producing the same
JP2003049221A Method for producing non-heat treated warm-forged parts
JP2003039102A Precision rolling method of steel bar and wire rod
JP2003039101A Finish rolling method of steel bar and wire rod