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SUMITOMO CO LTD

Overview
  • Total Patents
    291
  • GoodIP Patent Rank
    177,341
  • Filing trend
    0.0%
About

SUMITOMO CO LTD has a total of 291 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 1967. It filed its patents most often in China, Republic of Korea and Italy. Its main competitors in its focus markets macromolecular chemistry and polymers, organic fine chemistry and optics are SUMITOMO CHEMICAL CO, MITSUBISHI CHEM CORP and NIPPON STEEL CHEMICAL CO.

Patent filings in countries

World map showing SUMITOMO CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Nozue Yoshinobu 6
#2 Kishi Fujii 5
#3 Yasumoto Tatsumi 5
#4 Yasutoyo Kawashima 4
#5 Yamada Katsuhiro 4
#6 Hagitani Koju 4
#7 Miyazaki Hiroyuki 4
#8 Koji Hagiya 4
#9 Kawashima Yasutoyo 4
#10 Masayo Sugeno 3

Latest patents

Publication Filing date Title
CN105729962A Polarizing film, polarizing plate and polarizing film manufacturing method
CN103269839A Optical film manufacturing method, polarizing plate, and image display device.
CN103299460A Process for production of carbon material for sodium secondary batteries
CN102218878A Film, laminated body and solar cell
CN102069594A Manufacture method for light guide plate
CN102054279A Generating method of random patterns
CN102472843A Compound light-control plate, surface light source device, and transparent image display device
CN102459436A Resin composition for crosslinking/foam molding, crosslinked molded foam, member for footwear, and footwear
CN102002010A Method for refining bioxazoline alkane compound
CN102037055A Polyether polymer and production process thereof
CN101952937A Semiconductor substrate, semiconductor substrate manufacturing method, and electronic device
CN101959906A Process for producing modified olefin polymer
CN101945898A Catalyst component for polymerization of ethylene and process for producing ethylene polymer (2)
CN101932616A Catalyst component for polymerization of ethylene and process for producing ethylene polymer (1)
CN101897000A Semiconductor substrate, method for producing semiconductor substrate, and electronic device
CN101878237A Ethylene-a-olefin copolymer and molded article
CN101836136A Anti-glare film, anti-glare polarizing plate, and image display device
CN101679172A Method for producing benzaldehyde compound
CN101280087A Polypropylene resin composition and molded article comprising the same
CN101236357A Chemically amplified corrosion-resisitng agent composition