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SUMITOMO SPEC METALS

Overview
  • Total Patents
    2,745
About

SUMITOMO SPEC METALS has a total of 2,745 patent applications. Its first patent ever was published in 1964. It filed its patents most often in Japan, United States and China. Its main competitors in its focus markets electrical machinery and energy, materials and metallurgy and machines are NEOMAX CO LTD, OGAWA HIDEKI and STEWARD INC.

Patent filings per year

Chart showing SUMITOMO SPEC METALSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yamashita Osamu 173
#2 Hirozawa Satoru 167
#3 Matsuura Yutaka 166
#4 Fujimura Setsuo 164
#5 Sagawa Masato 164
#6 Wada Toshiaki 155
#7 Kikui Fumiaki 152
#8 Kanekiyo Hirokazu 146
#9 Yamamoto Hitoshi 107
#10 Nishiuchi Takeshi 102

Latest patents

Publication Filing date Title
JP2004076162A Surface treatment method and surface treated rare earth based permanent magnet
JP2004114158A Copper phosphorus brazing filler metal and brazing sheet
AU2003272093A1 Nanocomposite magnet and method for producing the same
AU2003266588A1 Solder-coated ball and method for manufacture thereof, and method for forming semiconductor interconnecting structure
CN1556751A Aluminum/nickel clad material and method for manufacture thereof, and exterior terminal for electric cell
JP2004100043A Magnetic alloy material and its production method
JP2004106059A Aluminum-nickel clad member, manufacturing method thereof, and external terminal for battery
JP2004080023A Multilayer inductor
JP2004072082A Rare earth sintered magnet and its manufacturing method
JP2004006910A Rare earth-based permanent magnet
JP2004006911A Method of recording identification information, and photomask set
JP2004056104A Method of preventing deterioration in alkali silicate coat
JP2004041715A Magnetic field generator and mri apparatus using the same
JP2003347143A Rare-earth magnet
WO03086687A1 Method for press molding rare earth alloy powder and method for producing sintered object of rare earth alloy
JP2004002998A Press molding process for rare earth alloy powder and process for manufacturing rare earth alloy sintered body
JP2003311619A Grinding method and grinding device for magnetic member
JP2003326449A Cutting process for rare earth alloy
JP2004122230A Method for producing rapidly cooled alloy for nanocomposite magnet
JP2003305021A Magnetic field generating apparatus and its manufacturing method