USPatentGranted
B2

Anthracene derivative, light emitting element using the same, and light emitting device using the same

Granted 22 Dec 2015 · 2 office actions

Current assignee: Semiconductor Energy Laboratory Co., Ltd. · originally Semiconductor Energy Laboratory

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Inventors: Harue Nakashima, Kumi Kojima, Sachiko Kawakami, Nobuharu Ohsawa +1 · Examiner: Gregory Clark · AU 1786 · TC 1700

Life of the patent

3 dated events
⤢ drag to zoomJul 2014Oct 2014Jan 2015Apr 2015Jul 2015Oct 2015Jan 2016Prosecution
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Abstract

It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms. [structure]

Claims

13 · 2 independent · depth 2
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13 granted claims

Classifications

5 codes
IPC · International Patent Classification
Section C — Chemistry; metallurgy
  • C09K11/06
  • C07D403/12
Section H — Electricity
  • H05B33/14
  • H01L51/50
  • H01L51/00

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File wrapper

Pendency
1.3 y
487 days filing → grant
Office actions
1
non-final + final
Responses
3
1 RCE
Examiner
Gregory Clark
art unit 1786 · TC 1700
Citations: 62 back · 0 forward

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20140364626 A111 Dec 2014

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