发明授权
US06440586B1 Benzopyran compound, material for luminous device, and luminous device using the same 失效
苯并吡喃复合物,发光装置用材料及使用其的发光装置

  • 专利标题: Benzopyran compound, material for luminous device, and luminous device using the same
  • 专利标题(中): 苯并吡喃复合物,发光装置用材料及使用其的发光装置
  • 申请号: US09533240
    申请日: 2000-03-22
  • 公开(公告)号: US06440586B1
    公开(公告)日: 2002-08-27
  • 发明人: Terukazu YanagiHisashi OkadaTatsuya Igarashi
  • 申请人: Terukazu YanagiHisashi OkadaTatsuya Igarashi
  • 优先权: JP11-083250 19990326; JP11-102752 19990409; JP11-237265 19990824
  • 主分类号: H05B3312
  • IPC分类号: H05B3312
Benzopyran compound, material for luminous device, and luminous device using the same
摘要:
A compound for a luminous device represented by (I), (I-a), (III) or (I′):
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