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NKK TUBES

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    217,494
  • Filing trend
    ⇩ 100.0%
About

NKK TUBES has a total of 15 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2005. It filed its patents most often in EPO (European Patent Office), WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets materials and metallurgy, machines and civil engineering are THYSSENKRUPP STEEL USA LLC, MAANSHAN IRON AND STEEL CO LTD and SWISS STEEL AG.

Patent filings in countries

World map showing NKK TUBESs patent filings in countries
# Country Total Patents
#1 EPO (European Patent Office) 4
#2 WIPO (World Intellectual Property Organization) 4
#3 China 3
#4 United States 3
#5 Brazil 1

Patent filings per year

Chart showing NKK TUBESs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hashizume Shuji 6
#2 Minami Yusuke 5
#3 Taniguchi Tomomi 5
#4 Fukui Toshihiko 4
#5 Sakura Koji 4
#6 Narikawa Tomoyuki 3
#7 Ono Tatsuo 3
#8 Iijima Hitoshi 3
#9 Yoshida Motohisa 3
#10 Sato Nobuhide 2

Latest patents

Publication Filing date Title
EP3271631A1 Drill pipe with double shoulder tool joints
EP2889390A1 Highly strong, highly tough and highly corrosion-resistant martensitic stainless steel
CN105008785A Double shoulder tool joint
WO2012140718A1 Highly corrosion-resistant martensitic stainless steel
WO2012117546A1 LOW-C, HIGH-Cr STEEL PIPE OF 862 MPa GRADE WITH HIGH CORROSION RESISTANCE, AND PROCESS FOR PRODUCING SAME
EP2060641A1 Austenite-base stainless steel pipe, for boiler, having excellent high-temperature steam oxidation resistance
CN102061893A Double shoulder tool joint