公开(公告)号：US11444246B2

公开(公告)日：2022-09-13

申请号：US16903952

申请日：2020-06-17

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoki Kato ,  Takayasu Sado ,  Takahiro Fujiyama

IPC: H01L51/00 ,  C07C211/61 ,  H01L51/50 ,  C07C217/80 ,  C07C217/92 ,  C07C255/58 ,  C07D209/86 ,  C07D307/91 ,  C07D333/76 ,  C07D405/12 ,  C07D409/12 ,  C09B11/04 ,  C09B57/00 ,  C09K11/06 ,  H01L51/52

Abstract: An aromatic amine derivative represented by formula (1): wherein R1, R2, R3, L, Ar1, Ar2, k, m, and n are the same as defined in the specification, is useful as a material for an organic EL device and realizes an organic EL device with a high efficiency and a long lifetime even when driving it at a low voltage.

公开(公告)号：US11345686B2

公开(公告)日：2022-05-31

申请号：US16275361

申请日：2019-02-14

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoki Kato

IPC: C07D405/14 ,  H01L51/50 ,  H01L51/00 ,  C07D209/86 ,  C09K11/06 ,  H05B33/14 ,  C09B57/00

Abstract: Provided are: an aromatic amine derivative including a substituent A and a substituent B each represented by the formula (1) or (2) and having an arylene group bound to a carbazole structure, in which the substituent A and the substituent B include groups different from each other in the position at which the arylene group is bonded to the carbazole structure, and the substituent A and the substituent B are bonded to the same nitrogen atom or different nitrogen atoms in the molecule; an organic electroluminescent device including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and a anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative, and the molecules are rarely crystallized, the yield upon production of the organic electroluminescent device is improved, the driving voltage for the organic electroluminescent device is low, and the lifetime of the organic electroluminescent device is long; and an aromatic amine derivative which can realize the organic electroluminescent device. (In the formulae, each substituent is as described in claim 1.)

公开(公告)号：US11139437B2

公开(公告)日：2021-10-05

申请号：US16234275

申请日：2018-12-27

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Keita Seda ,  Ryota Takahashi ,  Tomoki Kato ,  Hidetsugu Ikeda ,  Yuki Nakano

IPC: H01L51/00 ,  C07F5/02 ,  H01L51/50

Abstract: A compound represented by the formula (1) below. At least one set of two or more adjacent groups among R1 to R11 forms a substituted or unsubstituted heterocyclic ring, or forms a ring represented by the formula (2) below, or at least one of R1 to R4 is a group represented by the formula (3) below.

公开(公告)号：US11117857B2

公开(公告)日：2021-09-14

申请号：US15748462

申请日：2016-08-01

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoki Kato ,  Taro Yamaki ,  Masahiro Kawamura ,  Hirokatsu Ito

IPC: C07C211/61 ,  H01L51/50 ,  H01L51/00 ,  C09K11/06

Abstract: A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: wherein R1 to R6, a to f, L1 to L3, and Ar are as defined in the description.

公开(公告)号：US10944057B2

公开(公告)日：2021-03-09

申请号：US14909930

申请日：2015-07-13

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoki Kato ,  Nobuhiro Yabunouchi ,  Masakazu Funahashi ,  Takahiro Fujiyama

IPC: H01L51/00 ,  C07D333/76 ,  C07D307/91 ,  C09K11/06 ,  H01L51/50 ,  C07C211/61 ,  C07D209/82 ,  C07D405/12 ,  C07D209/86

Abstract: A compound represented by formula (A-0) or (B-0) is useful as a material for organic EL devices which realizes an organic EL device exhibiting high emission efficiency even when driving at a low voltage and has a long lifetime: wherein R1 to R10, n1, m2, k3, k4, n5, m6, k7, k8, L0 to L2, and Ar are as defined in the description.

公开(公告)号：US10854822B2

公开(公告)日：2020-12-01

申请号：US15308461

申请日：2015-07-13

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoki Kato ,  Nobuhiro Yabunouchi ,  Masakazu Funahashi ,  Takahiro Fujiyama

IPC: H01L51/00 ,  C07D333/76 ,  C07D307/91 ,  C09K11/06 ,  H01L51/50 ,  C07C211/61 ,  C07D209/82 ,  C07D405/12 ,  C07D209/86

Abstract: An organic EL device capable of driving at low voltage and having high emission efficiency and long lifetime and a material for organic EL devices which realize such an organic EL device are provided. The material for organic EL devices is a compound represented by formula (A1) or (B1): wherein R1 to R8, n1, m2, k3, k4, n5, m6, L0 to L2, and Ar are as defined in the description.

公开(公告)号：US10230058B2

公开(公告)日：2019-03-12

申请号：US15912123

申请日：2018-03-05

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Ryota Takahashi ,  Tomoki Kato ,  Hidetsugu Ikeda

IPC: C09K11/06 ,  H01L51/00 ,  H01L51/50 ,  C07D487/06 ,  C07D487/16

Abstract: A novel compound capable of producing an organic electroluminescence (EL) device with excellent properties, an organic EL device comprising the compound, and an electronic device comprising the organic EL device are provided.A compound represented by formula (1), an organic EL device comprising the compound, an organic EL device comprising an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and a light emitting layer and at least one layer of the organic thin film layer comprises the compound, and an electronic device comprising the organic EL device: wherein A, B, C, and R1 to R11 are as defined in the description.

公开(公告)号：US10026907B2

公开(公告)日：2018-07-17

申请号：US15785749

申请日：2017-10-17

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoki Kato ,  Masaki Numata ,  Kazuki Nishimura ,  Toshihiro Iwakuma ,  Chishio Hosokawa

IPC: H01L51/00 ,  C07D495/04 ,  C07D307/91 ,  C07D493/04 ,  C07D487/04 ,  C09K11/06 ,  C09K11/02 ,  H01L51/50

Abstract: Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a n-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

公开(公告)号：US09972786B2

公开(公告)日：2018-05-15

申请号：US14718795

申请日：2015-05-21

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Nobuhiro Yabunouchi ,  Masahiro Kawamura ,  Tomoki Kato

IPC: C07D405/10 ,  C07D405/12 ,  C07D407/10 ,  C07D407/12 ,  C09K11/06 ,  H01L51/50 ,  H05B33/14 ,  H01L51/00 ,  C07D307/91 ,  C07D405/14 ,  C07D407/14

CPC classification number: H01L51/0061 ,  C07D307/91 ,  C07D405/12 ,  C07D405/14 ,  C07D407/12 ,  C07D407/14 ,  C09K11/06 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1022 ,  H01L51/0052 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5064 ,  H01L51/5088 ,  H05B33/14

Abstract: Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device. In the organic electroluminescence device, including an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, the aromatic amine derivative is contained in at least one layer, particularly a hole transport layer, in the organic thin film layer.

公开(公告)号：US09966539B2

公开(公告)日：2018-05-08

申请号：US13767417

申请日：2013-02-14

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoki Kato ,  Takayasu Sado ,  Takahiro Fujiyama

IPC: H01L51/00 ,  C07C211/61 ,  H01L51/50

CPC classification number: H01L51/0072 ,  B32B2457/202 ,  C07C211/61 ,  C07C2603/18 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0071 ,  H01L51/0073 ,  H01L51/0085 ,  H01L51/5056 ,  H01L51/5064

Abstract: An organic electroluminescence device contains an anode and a cathode facing each other, and intervening therebetween at least two hole transporting layers and a light emitting layer sequentially, and one of the hole transporting layers contains a compound having a particular structure having a fluorene structure at the center thereof, and is not adjacent to the light emitting layer. The organic electroluminescence device has a hole transporting layer having an increased thickness, is capable of being controlled in the thickness of the optical film, and has an enhanced device capability.