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Akihiko Okada

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  • Tsukuba-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Block copolymer
    • Patent number 8,895,675
    • Issue date Nov 25, 2014
    • Sumitomo Chemical Company, Limited
    • Daisuke Fukushima
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Copolymer, polymer composition and polymer light-emitting device
    • Patent number 6,926,973
    • Issue date Aug 9, 2005
    • Sumitomo Chemical Company, Limited
    • Tomoyuki Suzuki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyphenylene ether resin composition
    • Patent number 5,484,831
    • Issue date Jan 16, 1996
    • Sumitomo Chemical Company, Limited
    • Hideyuki Higashimura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    BLOCK COPOLYMER
    • Publication number 20100219399
    • Publication date Sep 2, 2010
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Daisuke Fukushima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    ELECTRODE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERY
    • Publication number 20100003602
    • Publication date Jan 7, 2010
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Akihiko Okada
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    POLYARYLENE
    • Publication number 20090045725
    • Publication date Feb 19, 2009
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Daisuke Fukushima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Polymer Compound and Polymer Light-Emitting Device Using the Same
    • Publication number 20080233429
    • Publication date Sep 25, 2008
    • Sumitomo Chemical Company, Limited
    • Jun Oguma
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Polymer and polymer light-emitting device using same
    • Publication number 20060204782
    • Publication date Sep 14, 2006
    • Sumitomo Chemical Company, Limited
    • Akihiko Okada
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Electrode material for non-aqueous secondary battery
    • Publication number 20030162090
    • Publication date Aug 28, 2003
    • Sumitomo Chemical Company, Limited
    • Akihiko Okada
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Copolymer, polymer composition and polymer light-emitting device
    • Publication number 20030143429
    • Publication date Jul 31, 2003
    • Sumitomo Chemical Company, Limited
    • Tomoyuki Suzuki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...