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DAIDO STEEL CO LTD

Overview
  • Total Patents
    12,928
  • GoodIP Patent Rank
    2,067
  • Filing trend
    ⇩ 24.0%
About

DAIDO STEEL CO LTD has a total of 12,928 patent applications. It decreased the IP activity by 24.0%. Its first patent ever was published in 1963. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, environmental technology and machine tools are CENTRAL IRON & STEEL RES INST, BUDERUS EDELSTAHL GMBH and APERAM.

Patent filings per year

Chart showing DAIDO STEEL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Demukai Noboru 236
#2 Kawate Kenji 228
#3 Yahagi Shinichiro 221
#4 Nakamura Masatomo 204
#5 Nakamura Sadayuki 203
#6 Shimizu Takasumi 202
#7 Takeuchi Hirokimi 183
#8 Hiyamizu Takao 182
#9 Shimizu Tetsuya 167
#10 Saito Akihiko 153

Latest patents

Publication Filing date Title
US2021104341A1 Sintered magnet and method for producing sintered magnet
WO2021054014A1 Powder material, layered shaped article, and production method for powder material
KR20210004857A Nanocrystalline soft-magnetic material, method of manufacturing the same, and iron-based alloy used therein
EP3753653A1 Powder for additive manufacturing, and die-casting die part
JP2021001391A Powder for laminate shaping and die-casting die part
US2020251723A1 Negative electrode active material for lithium-ion battery, negative electrode for lithium-ion battery and lithium-ion battery
JP2020126835A Negative electrode active material for lithium-ion battery
US2020143965A1 RFeB SINTERED MAGNET AND METHOD FOR PRODUCING SAME
EP3636791A1 Steel for mold
WO2020054540A1 Precipitation hardening-type martensite-based stainless steel and underground excavation drill component
JP2020085888A Crystal structure evaluation method and crystal structure evaluation device
CN110872687A Laminate and target material
CN110871269A Alloy powder composition
JP2020077843A RFeB system sintered magnet
JP2020063508A Steel for mold, and mold
JP2020045560A Precipitation curing martensitic stainless steel and drill component for underground excavation
JP2021007980A Wire rod feeder
JP2021008660A MANUFACTURING METHOD OF Ni-BASED HOT FORGED MATERIAL
JP2021008647A Ferritic free cutting stainless steel and method for manufacturing the steel material
JP2020037253A Laminate, and target material