Patents by Inventor Hiroki Ohrui

Hiroki Ohrui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220259229
    Abstract: An organic compound represented by formula [1]: where R1 to R14 are each independently selected from the group consisting of a hydrogen atom and substituents, wherein at least one of R1 to R4 and R8 to R11 is an amino group or an amino group-containing group, and X is oxygen, sulfur, selenium, tellurium, or a CR15R16 group, wherein R15 and R16 are each independently selected from the group consisting of a hydrogen atom and substituents.
    Type: Application
    Filed: February 8, 2022
    Publication date: August 18, 2022
    Inventors: Hirokazu Miyashita, Jun Kamatani, Naoki Yamada, Hiroki Ohrui, Yosuke Nishide, Satoru Shiobara
  • Publication number: 20220238813
    Abstract: An organic light-emitting element including a first electrode, a second electrode, and a light-emitting layer located between the first electrode and the second electrode. The light-emitting layer contains a first organic compound material, a second organic compound that is a delayed fluorescent material, and a third organic compound that is a light-emitting material. In the second organic compound, an electron is transferred from a plurality of occupied molecular orbitals (OMO) to a lowest unoccupied molecular orbital (LUMO) in a second excited triplet state.
    Type: Application
    Filed: January 13, 2022
    Publication date: July 28, 2022
    Inventors: Satoru Shiobara, Naoki Yamada, Hirokazu Miyashita, Yosuke Nishide, Jun Kamatani, Hiroki Ohrui
  • Publication number: 20220173332
    Abstract: An organic compound represented by formula [1]: where in formula [1], R1 to R6 are each independently selected from the group consisting of a hydrogen atom, a hydrocarbon group, and other substituents having a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, at least one of R1 to R6 is one of the other substituents, at least any one of R1 and R2 is a hydrogen atom or a hydrocarbon group, at least any one of R3 and R4 is a hydrogen atom or a hydrocarbon group, and at least any one of R5 and R6 is a hydrogen atom.
    Type: Application
    Filed: November 24, 2021
    Publication date: June 2, 2022
    Inventors: Hironobu Iwawaki, Jun Kamatani, Hirokazu Miyashita, Naoki Yamada, Yosuke Nishide, Satoru Shiobara, Hiroki Ohrui
  • Publication number: 20220081378
    Abstract: An organic compound represented by the following formula [1] or [2]: wherein R1 to R22 independently denote a substituent selected from a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted silyl group, a cyano group, a trifluoromethyl group, a substituted or unsubstituted aromatic hydrocarbon group, and a substituted or unsubstituted heterocyclic group, and R5 and R6, and/or R7 and R8 may be bonded together to form a ring structure.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 17, 2022
    Inventors: Hirokazu Miyashita, Naoki Yamada, Hiroki Ohrui, Yosuke Nishide, Jun Kamatani
  • Patent number: 11139435
    Abstract: Provided is an organic light emitting element including: an anode; a cathode; and an organic compound layer formed between the anode and the cathode and including a hole injection layer, a hole transport layer, and an emission layer, in which: the emission layer includes a host and a dopant; the hole transport layer includes a hole transport material having multiple aromatic hydrocarbon skeletons and a single bond for linking the aromatic hydrocarbon skeletons; the hole transport material has a triplet level T1 of 1.8 eV or more; the hole transport material has a hole mobility of 1×10?5 cm2/Vs or more; and the hole transport layer and the emission layer satisfy relationships represented by the following expression (1): |reduction potential of hole transport material|?|reduction potential of host|>0.1 V??(1) and the following expression (2): |HOMO level of hole transport material?HOMO level of host|<0.1 eV??(2).
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 5, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryuji Ishii, Hiroki Ohrui, Kei Tagami, Masumi Itabashi
  • Patent number: 11128791
    Abstract: Provided is a photoelectric conversion element including an anode, a photoelectric conversion layer that contains a first organic semiconductor, a second organic semiconductor, and a third organic semiconductor, and a cathode. As each of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor, a low-molecular weight organic semiconductor is used. The first organic semiconductor, the second organic semiconductor, and the third organic semiconductor have mass ratios that satisfy the following relationship: the first organic semiconductor?the second organic semiconductor?the third organic semiconductor. Further, when a total amount of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor is 100 mass %, a content of the second organic semiconductor is 6 mass % or more, and a content of the third organic semiconductor is 3 mass % or more.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: September 21, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tetsuo Takahashi, Satoru Shiobara, Jun Kamatani, Naoki Yamada, Tomona Yamaguchi, Hiroki Ohrui, Hironobu Iwawaki, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Norifumi Kajimoto, Moe Takahira, Isao Kawata, Yuto Ito
  • Patent number: 11121182
    Abstract: An organic photoelectric conversion element includes an electron-collecting electrode, a hole-collecting electrode, and a photoelectric conversion portion which is disposed between the electron-collecting electrode and the hole-collecting electrode. The photoelectric conversion portion includes a first organic compound layer. A second organic compound layer is disposed between the hole-collecting electrode and the photoelectric conversion portion. The first organic compound layer contains a first compound having at least a fullerene skeleton and a second compound having a fluoranthene skeleton.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: September 14, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Naoki Yamada, Hiroki Ohrui, Kengo Kishino, Hironobu Iwawaki, Satoru Shiobara, Tomona Yamaguchi, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita
  • Publication number: 20210139417
    Abstract: An organic compound represented by formula [1]. In the formula rings Q represented by formula [1-1] are each independently present at positions *1 and *2 such that positions * of the rings Q correspond to the positions *1 and *2. The rings Q may be the same or different. R4 and R5 represent groups each independently selected from the group consisting of a hydrogen atom and a substituted or unsubstituted aryl group. The rings Q are aromatic hydrocarbons. R1 to R3 represent groups each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a cyano group. At least one of R1 to R3 represents a cyano group.
    Type: Application
    Filed: September 2, 2020
    Publication date: May 13, 2021
    Inventors: Hiroki Ohrui, Hirokazu Miyashita, Satoru Shiobara, Yosuke Nishide, Naoki Yamada, Jun Kamatani
  • Publication number: 20210143335
    Abstract: An organic compound represented by formula [1]. The compounds are of the class of diacenaphthochrysene compound, useful as organic light emitting device. In the formula [1], R1 to R18 are each independently selected from the group consisting of a hydrogen atom and a substituent.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 13, 2021
    Inventors: Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara, Hiroki Ohrui, Naoki Yamada, Jun Kamatani
  • Patent number: 10978644
    Abstract: The present disclosure provides an organic compound expressed by the following General Formula 1: In General Formula 1, a partial structure Z1 represents a condensed polycyclic group that may include a nitrogen atom in a skeleton, and that includes at least one of a five-membered ring and a six-membered ring. The partial structure Z1 may include, as a substituent, a carbonyl group, a dicyanovinylidene group, a halogen atom, a cyano group, an alkyl group, an alkoxy group, an aromatic heterocyclic group, or an aryl group. R1 and R2 represent an alkyl group, aryl group, an aromatic heterocyclic group, a halogen group, or a cyano group. Ar1 represents an arylene group or a divalent aromatic heterocyclic group, and Ar2 and Ar3 represent an aryl group or an aromatic heterocyclic group. n represents an integer of 1 to 4.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 13, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Jun Kamatani, Hiroki Ohrui, Hironobu Iwawaki, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara, Tomona Yamaguchi, Tetsuo Takahashi
  • Publication number: 20210101864
    Abstract: An organic compound represented by formula (1). In the formula (1), R1 to R18 are each independently selected from the group consisting of a hydrogen atom and a substituent. At least one of R1 to R18 represents a substituent. The substituent is an aryl group having at least one cyano group or a heterocyclic group having at least one cyano group.
    Type: Application
    Filed: September 2, 2020
    Publication date: April 8, 2021
    Inventors: Naoki Yamada, Jun Kamatani, Hiroki Ohrui, Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara
  • Patent number: 10947212
    Abstract: The present invention provides an organic compound represented by general formula [1] described in claims. In general formula [1], Ar1 and Ar2 are each independently selected from an aryl group and a heteroaryl group. In general formula [1], R1 to R3 are each a hydrogen atom or a substituent. R4 is an electron-withdrawing substituent. X1 is oxygen or sulfur. Y1 to Y3 are each independently selected from a carbon atom and a nitrogen atom.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 16, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Hiroki Ohrui, Hironobu Iwawaki, Satoru Shiobara, Tomona Yamaguchi, Tetsuo Takahashi, Masumi Itabashi, Hirokazu Miyashita, Jun Kamatani
  • Publication number: 20210057653
    Abstract: Provided is an organic compound represented by the general formula [1]: in the formula [1], R1 to R18 each represent a hydrogen atom, an alkyl group having 1 or more and 8 or less carbon atoms, an aromatic hydrocarbon group having 6 or more and 18 or less carbon atoms, or an aromatic heterocyclic group having 3 or more and 15 or less carbon atoms, and may be identical to or different from each other, and the plurality of R17's or the plurality of R18's may be identical to or different from each other, and the R1 to the R18 may each further have a substituent selected from a halogen atom and an alkyl group having 1 or more and 8 or less carbon atoms, and n represents an integer of 1 or more and 3 or less.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 25, 2021
    Inventors: Naoki Yamada, Masumi Itabashi, Hironobu Iwawaki, Jun Kamatani, Hiroki Ohrui, Yosuke Nishide, Hirokazu Miyashita
  • Patent number: 10903433
    Abstract: An organic compound represented by the following formula [1] has a high absorption coefficient in a long wavelength region and is thermally stable. In formula [1], Ar1 and Ar2 each represent a group independently selected from the group consisting of aryl group and heterocyclic groups, and A represents a cyclic structure. m represents an integer of 0 to 2. Q represents a structure represented by one of the following formulas [1-1] and [1-2], wherein n represents an integer of 0 to 2, and when n is 2, the two R4's may be the same as or different from each other, and the two R5's may be the same as or different from each other.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: January 26, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hirokazu Miyashita, Naoki Yamada, Hiroki Ohrui, Hironobu Iwawaki, Yosuke Nishide, Jun Kamatani
  • Patent number: 10868260
    Abstract: Provided is an organic compound represented by the general formula [1]: in the formula [1], R1 to R18 each represent a hydrogen atom, an alkyl group having 1 or more and 8 or less carbon atoms, an aromatic hydrocarbon group having 6 or more and 18 or less carbon atoms, or an aromatic heterocyclic group having 3 or more and 15 or less carbon atoms, and may be identical to or different from each other, and the plurality of R17's or the plurality of R18's may be identical to or different from each other, and the R1 to the R18 may each further have a substituent selected from a halogen atom and an alkyl group having 1 or more and 8 or less carbon atoms, and n represents an integer of 1 or more and 3 or less.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 15, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Masumi Itabashi, Hironobu Iwawaki, Jun Kamatani, Hiroki Ohrui, Yosuke Nishide, Hirokazu Miyashita
  • Patent number: 10861903
    Abstract: Provided is an organic compound represented by the following general formula [1], the compound having an absorption peak in a long wavelength region of a visible light region: where Ar1 and Ar2 each represent an aryl group or the like, Ar3 represents an arylene group or the like, m represents an integer of 0 to 3, R1 to R4 each represent a hydrogen atom or the like, X1 and X2 are each independently selected from oxygen and sulfur, Q represents, for example, a substituent represented by the general formula [1-1], R5 to R7 each represent a hydrogen atom or the like, and n represents an integer of 0 to 2.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: December 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Yosuke Nishide, Hiroki Ohrui, Hironobu Iwawaki, Hirokazu Miyashita, Jun Kamatani
  • Patent number: 10854821
    Abstract: Provided is an organic light emitting device having high emission efficiency and a long continuous driving lifetime. The organic light emitting device includes: an anode; a cathode; and an emitting layer placed between the anode and the cathode, in which: the emitting layer contains an emitting material that emits fluorescence; and in an emission wavelength region of the emitting material, an absorption peak of an absorption spectrum in a minimum excited triplet state of a material having a smallest minimum excited triplet energy out of constituent materials in the emitting layer is absent.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: December 1, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenichi Ikari, Hiroki Ohrui, Yojiro Matsuda, Haruna Iida, Masumi Itabashi, Kei Tagami, Tetsuo Takahashi, Satoru Shiobara, Tomona Yamaguchi
  • Publication number: 20200131103
    Abstract: A composition contains an organic compound and an anthracene compound different from the organic compound, the anthracene compound having a hydrogen atom at at least one of positions 9 and 10, in which the concentration of the anthracene compound is 100 ppm or less. Additionally, a long-lived organic light-emitting device includes an organic compound layer containing a reduced concentration of the anthracene compound.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 30, 2020
    Inventors: Hiroki Ohrui, Yosuke Nishide, Jun Kamatani, Kentaro Ito
  • Publication number: 20200119281
    Abstract: The present disclosure provides an organic compound represented by general formula [1] below. In formula [1], Ar1 and Ar2 each represent an alkyl group having 1 to 8 carbon atoms, an aromatic hydrocarbon group having 6 to 18 carbon atoms, or a heteroaromatic group having 3 to 17 carbon atoms. Ar1 and Ar2 may be the same or different. Ar3 and Ar4 are each a substituent having a carbazolyl group. Ar3 and Ar4 may be the same or different. Ar1 to Ar4 may be substituted. At least one of Ar1 to Ar4 has a tert-butyl group. The total number of tert-butyl groups in one molecule of the organic compound is 2 or more.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Inventors: Hirokazu Miyashita, Naoki Yamada, Hiroki Ohrui, Hironobu Iwawaki, Yosuke Nishide, Jun Kamatani
  • Publication number: 20190364191
    Abstract: Provided is a photoelectric conversion element including an anode, a photoelectric conversion layer that contains a first organic semiconductor, a second organic semiconductor, and a third organic semiconductor, and a cathode. As each of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor, a low-molecular weight organic semiconductor is used. The first organic semiconductor, the second organic semiconductor, and the third organic semiconductor have mass ratios that satisfy the following relationship: the first organic semiconductor?the second organic semiconductor?the third organic semiconductor. Further, when a total amount of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor is 100 mass %, a content of the second organic semiconductor is 6 mass % or more, and a content of the third organic semiconductor is 3 mass % or more.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 28, 2019
    Inventors: Tetsuo Takahashi, Satoru Shiobara, Jun Kamatani, Naoki Yamada, Tomona Yamaguchi, Hiroki Ohrui, Hironobu Iwawaki, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Norifumi Kajimoto, Moe Takahira, Isao Kawata, Yuto Ito