公开(公告)号：US20250162979A1

公开(公告)日：2025-05-22

申请号：US19027889

申请日：2025-01-17

Applicant: HODOGAYA CHEMICAL CO., LTD.

Inventor： Katsumi ABE ,  Shusaku KOIE ,  Yuya OKURA ,  Takuya UEHARA ,  Hideyuki OTSUKA

IPC: C07C211/55 ,  H10K50/15 ,  H10K50/16 ,  H10K85/60

Abstract: A mixture containing p-diphenyl compound derivatives represented by the following general formula (1), general formula (2), and general formula (3).

公开(公告)号：US20210210693A1

公开(公告)日：2021-07-08

申请号：US17057040

申请日：2019-06-20

Applicant: HODOGAYA CHEMICAL CO., LTD.

Inventor： Takuya UEHARA ,  Kouki KASE ,  Kyung-Hwa PARK ,  Yuta HIRAYAMA

IPC: H01L51/00 ,  C07C211/54 ,  C07C211/61 ,  C07C211/58

Abstract: An object of the present invention is to provide an organic compound that has excellent properties, with excellent hole injection and transport performance, electron blocking capability, and high stability in a thin film state, and furthermore to provide a highly efficient and highly durable organic EL device by using this compound. The present invention relates to a compound having a triarylamine structure and being represented by the structural formula (A-1) below, where A, B, and C may be the same or different, and each represent a group represented by the structural formula (B-1) below, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group, where at least one of A, B, and C is not the group represented by the structural formula (B-1) below. (For the symbols and the like in the formulae, see the descriptions in the specification.)

公开(公告)号：US20220119360A1

公开(公告)日：2022-04-21

申请号：US17427772

申请日：2020-02-21

Applicant: HODOGAYA CHEMICAL CO., LTD. ,  SFC CO., LTD.

Inventor： Shunji MOCHIZUKI ,  Takuya UEHARA ,  Kouki KASE ,  Yuta HIRAYAMA ,  Takeshi YAMAMOTO ,  Shuichi HAYASHI ,  Young-Tae CHOI ,  Se-Jin LEE ,  Seok-Bae PARK ,  Tae-Jung YU ,  Byung-Sun YANG

IPC: C07D263/62 ,  H01L51/00 ,  C07D277/66 ,  C09K11/06 ,  H01L51/52

Abstract: An objective of the invention is to provide an organic EL device that combines various materials of the device and a capping layer composed from a material that absorbs sunlight within the wavelength range of 400 nm to 410 nm to prevent impact on materials inside the organic EL device, has a high light absorption coefficient and a high refractive index to significantly improve light extraction efficiency, has excellent stability, durability and light resistance in a thin film, and has no absorption within the wavelength ranges of blue, green and red, to thereby effectively achieve the characteristics of the various materials of the device. The invention is an arylamine compound having a benzazole structure, and is also an organic EL device including a capping layer containing the arylamine compound and a light-emitting layer containing a host and a phosphorescent dopant.

公开(公告)号：US20220324791A1

公开(公告)日：2022-10-13

申请号：US17708673

申请日：2022-03-30

Applicant: HODOGAYA CHEMICAL CO., LTD.

Inventor： Katsumi ABE ,  Shusaku KOIE ,  Yuya OKURA ,  Takuya UEHARA ,  Hideyuki OTSUKA

IPC: C07C211/55 ,  H01L51/00 ,  H01L51/50

Abstract: A mixture containing p-diphenyl compound derivatives represented by the following general formula (1), general formula (2), and general formula (3).