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Masashi Tashiro

from Los Angeles, CA

Masashi Tashiro Phones & Addresses

  • 350 Fuller Ave, Los Angeles, CA 90036 • 3239361589 • 3239540243

Us Patents

  • Organic Electroluminescent Device Based On Pyrene Derivatives

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  • US Patent:
    6852429, Feb 8, 2005
  • Filed:
    Aug 6, 2003
  • Appl. No.:
    10/634755
  • Inventors:
    Xiao-Chang Charles Li - Union City CA,
    Yoshimasa Okamura - Sunnyvale CA,
    Kazunori Ueno - Ebina,
    Masashi Tashiro - Los Angeles CA,
    Hideki Tashiro - Los Angeles CA,
    G. K. Surya Prakash - Los Angeles CA,
  • Assignee:
    Canon Kabushiki Kaisha - Tokyo
  • International Classification:
    H05B033/14
  • US Classification:
    428690, 428917, 25230116, 25230135, 313504, 313506, 257 40, 257103
  • Abstract:
    A pyrene based compound and its use in an organic light emitting device (OLED) according to the following formula: In the above formula, Zrepresents a hydrogen atom, deuterium atom, oxygen atom, silicon atom, selenium atom, substituted or unsubstituted aryl group, substituted or unsubstituted heteroaryl group, substituted or unsubstituted aryl amine or a combination thereof, and Zrepresents a hydrogen or deuterium atom. One of Yand Yrepresents a hydrogen atom, deuterium atom, oxygen atom, silicon atom, selenium atom, a substituted or unsubstituted aryl group, substituted or unsubstituted heteroaryl group, substituted or unsubstituted aryl amine or a combination thereof, and the other of Yand Yrepresents a hydrogen or deuterium atom. Xthrough Xindependently represent hydrogen atoms, deuterium atoms, alkyl groups or aryl groups, and at least one of Xthrough Xrepresents a bulky alkyl group or bulky aryl group. Also, at least one of Xthrough X, Y, Y, Z, and Zrepresents a deuterium atom.

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