TREA

Takuji Kato

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  • Yokohama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multicolor display element
    • Patent number 7,663,797
    • Issue date Feb 16, 2010
    • Ricoh Company, Ltd.
    • Shigenobu Hirano
    • G02 - OPTICS
  • Information Patent Grant

    Multicolor display element
    • Patent number 7,333,259
    • Issue date Feb 19, 2008
    • Ricoh Company, Ltd.
    • Shigenobu Hirano
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTICOLOR DISPLAY ELEMENT
    • Publication number 20080013152
    • Publication date Jan 17, 2008
    • Shigenobu Hirano
    • G02 - OPTICS
  • Information Patent Application

    Multicolor display element
    • Publication number 20070024948
    • Publication date Feb 1, 2007
    • Shigenobu Hirano
    • G02 - OPTICS