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SUMITOMO METAL IND

Overview
  • Total Patents
    36,983
  • GoodIP Patent Rank
    204,475
About

SUMITOMO METAL IND has a total of 36,983 patent applications. Its first patent ever was published in 1938. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets materials and metallurgy, machine tools and environmental technology are ZHANGJIAGANG YANGZIJIANG COLD ROLLED SHEET CO LTD, RIZHAO BAOHUA NEW MAT CO LTD and SHANXI TAIGANG STAINLESS STEEL CO LTD.

Patent filings per year

Chart showing SUMITOMO METAL INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kondo Kunio 325
#2 Hayashi Chihiro 311
#3 Okada Yasutaka 277
#4 Ogawa Kazuhiro 255
#5 Goto Kunio 247
#6 Matsuda Yukio 231
#7 Tomizawa Atsushi 210
#8 Yuki Hideaki 204
#9 Higuchi Yoshihiko 200
#10 Masui Takeshi 199

Latest patents

Publication Filing date Title
JP2012210659A Laser welding method and laser welding device
JP2012210660A Laser welding method and laser welding device
JP2012214907A Steel products coated with heavy corrosion resistant protected cover
JP2012192457A Method for laser beam welding of steel plate, and its apparatus
JP2012197516A Method for manufacturing hot-rolled steel sheet
WO2012157455A1 Untempered steel and untempered steel member
JP2012162983A Foundation pile structure, precast concrete pile, and joint hardware for precast concrete pile and steel pipe pile
WO2012133877A1 Acidity-mitigating construction method using steel converter slag
JP2012148345A Welding method of forming raw material using high strength steel plate, laser welding apparatus, forming raw material obtained by method, forming method, and formed article
JP2012167374A Method for manufacturing cold-rolled steel sheet
JP2012192450A Method of manufacturing metallic double pipe
WO2012111307A1 Method for correcting pipe end of seamless pipe formed from high-cr stainless steel
CN103339278A Steel for carburizing or carbonitriding applications
WO2012098841A1 Vehicle body height adjustment valve having resolver for railway carriage
WO2012096149A1 Lubricant for hot-rolling of seamless metallic tube
JP2012072913A Railroad vehicle brake disc and fastening structure thereof
JP2012149230A Sliding member and method for producing the same
JP2012132098A Galvanized heat-treated steel material, and method for manufacturing the same
JP2012087935A High-strength bolt friction joint part using high-strength steel
JP2013047369A Titanium alloy