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NKK BARS & SHAPES CO LTD

Overview
  • Total Patents
    27
About

NKK BARS & SHAPES CO LTD has a total of 27 patent applications. Its first patent ever was published in 2000. It filed its patents most often in Japan, Taiwan and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets materials and metallurgy and environmental technology are RADON ROMAN, TIANJIN LIZHONG ALLOY CO LTD and GRANDMETALS CO LTD.

Patent filings in countries

World map showing NKK BARS & SHAPES CO LTDs patent filings in countries

Patent filings per year

Chart showing NKK BARS & SHAPES CO LTDs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Shiragami Tetsuo 23
#2 Murakami Toshiyuki 11
#3 Funakawa Yoshimasa 10
#4 Shiozaki Takeshi 10
#5 Tomita Kunikazu 10
#6 Ishida Kiyohito 7
#7 Fukuoka Kazuaki 6
#8 Oikawa Masanari 5
#9 Nakano Shiro 4
#10 Kikuchi Katsuhiko 4

Latest patents

Publication Filing date Title
JP2005068460A Nonrefining hot forged component having excellent low ductility and machinability, and method for manufacturing the component
JP2005029807A Sulfur and sulfur composite free-cutting steel with excellent machinability
JP2004003010A Nitrocarburized product superior in fatigue characteristic, and manufacturing method therefor
JP2004003009A Bar steel for cold forging, cold-forged product, and manufacturing method therefor
JP2004003008A Hot-rolled non-thermally refined bar steel and manufacturing method therefor
JP2004003011A Non-thermally refined hot-forged product, and manufacturing method therefor
JP2004183037A Sulfur and sulfur-composite free cutting steel superior in machinability
WO03046240A1 Free-cutting steel
JP2004076051A Annealing-obviation type wire for binding and method for producing the same
JP2004027297A Sulfur and sulfur composite free-cutting steel having excellent machinability less in surface defect
JP2003226935A Low-carbon free cutting steel
JP2004027296A Low-carbon sulfur composite free-cutting steel having excellent machinability
JP2003321745A Non-heat treated bolt having excellent fatigue property and production method thereof
JP2003321741A High strength pc steel bar having high temperature relaxation property and production method therefor
JP2003321743A High strength bolt having excellent delayed fracture characteristics and production method therefor
JP2003321742A High strength steel wire rod having excellent wire drawability and production method therefor
JP2003321731A Carburized parts and production method thereof
JP2003321744A High strength bolt or nut having excellent refractoriness and production method thereof
JP2003226932A Free-cutting steel
JP2002356743A Non-heat treated steel having high strength, low ductility and excellent machinability