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NITTETSU HARD KK

Overview
  • Total Patents
    67
About

NITTETSU HARD KK has a total of 67 patent applications. Its first patent ever was published in 1976. It filed its patents most often in Japan. Its main competitors in its focus markets materials and metallurgy, machine tools and surface technology and coating are NIPPON STEEL HARDFACING, DUMA MASCH ANLAGENBAU and NIPPON ITF KK.

Patent filings in countries

World map showing NITTETSU HARD KKs patent filings in countries
# Country Total Patents
#1 Japan 67

Patent filings per year

Chart showing NITTETSU HARD KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sato Takao 21
#2 Uchiyama Teruyuki 16
#3 Tarumi Kiyohiro 11
#4 Katsuki Hirotaka 10
#5 Uda Koji 10
#6 Tashiro Hisao 9
#7 Yokoi Kiyoshi 8
#8 Hiraoka Noboru 7
#9 Mizunuma Michiyoshi 7
#10 Kawazoe Katsutoshi 6

Latest patents

Publication Filing date Title
JP2000064024A Molten metal-corrosion resistant film forming material and formation of film
JPH1018008A Mechanical equipment for use in bath, to be disposed in hot-dip metal coating bath
JPH09316621A Sprayed coating suitable for sliding wear resistant member subjected to repeated thermal impact
JPH09277004A Roll for continuous casting
JPH09241868A Surface treated member excellent in resistance to heat, corrosion, and wear at high temperature
JPH09235662A Formation of thermally sprayed coating
JPH0978138A Locally heating heat treatment apparatus for boiler tube or the like
JPH0978219A Process roll having thermal spray thin film
JPH0975832A Boiler tube with corrosion-resistant and wear-resistant surface flame-sprayed layer
JPH0978261A Dipping member for molten metal bath excellent in corrosion resistance and wear resistance
JPH0967054A Roller for winding equipment in heat rolling factory
JPH0931622A Method for thermal spraying on outer peripheral surface of installed boiler tube and thermal spraying device therefor
JPH08325698A Coating material for roll shaft member in continuous hot-dip metal plating bath
JPH08302457A Member for one in hot-dip metal bath excellent in hot-dip metal corrosion resistance and pickling resistance
JPH08296023A Material for coating and member for immersing in metallic bath coated with the same material
JPH08296026A Thermal spraying method for outside surface of tubular material or bar material and more particularly structural member, such as boiler tube material of stick type boiler, having bent part and apparatus used therefor
JPH08247136A Roll for molten metal plating bath
JPH08158034A Strengthening of sprayed coating
JPH08121464A Roll for heat roll plant winding machine
JPH0853778A Roll having hard adhesiveness to plating metal of hot dip metal plated steel sheet and its production