Organic electroluminescence device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO RE46974
SERIAL NO

15381955

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An organic electroluminescence device 1 includes: an anode 3, a cathode 4 opposed to the anode 3 and an emitting layer 5 provided between the anode 3 and the cathode 4. The emitting layer 5 contains first and second host materials and a luminescent material. The first host material has a partial structure represented by at least one of the following formulae (1) and (2) while the second host material has a partial structure represented by the following formula (3). Az represents a substituted or unsubstituted aromatic heterocyclic group containing a nitrogen-containing six-membered ring. WCN is an aromatic hydrocarbon group substituted by at least one cyano group (CN) or an aromatic heterocyclic group substituted by at least one cyano group (CN). Ar1 is a substituted or unsubstituted aromatic hydrocarbon group or a substituted or unsubstituted aromatic heterocyclic group, but is not an aromatic heterocyclic group containing a nitrogen-containing six-membered ring.

description='In-line Formulae' end='lead'—Az—(WCN)p   (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'—Az—(CN)q   (2)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'—Ar1—(CN)r   (3)description='In-line Formulae' end='tail'

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
IDEMITSU KOSAN CO LTD2-1 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 100-8321

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eida, Mitsuru Sodegaura, JP 55 1518
Inoue, Tetsuya Sodegaura, JP 171 3019
Mizuki, Yumiko Sodegaura, JP 104 2388
Nishimura, Kazuki Sodegaura, JP 215 5929
Yabunouchi, Nobuhiro Sodegaura, JP 94 3529

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 31, 2026
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 31, 2030
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00