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Organic light-emitting device |
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Light-emitting element and iridium complex |
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2014-03-04 |
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Light-emitting element and iridium complex |
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2011-09-20 |
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Light emitting element and azole compound |
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2010-11-23 |
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Light emitting element and azole compound |
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2009-12-15 |
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Light-emitting element and iridium complex |
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2007-12-11 |
| 6962755 |
Light emitting element and azole compound |
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2005-11-08 |