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).

  • Patent number: 12338254
    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: Grant
    Filed: February 8, 2022
    Date of Patent: June 24, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Jun Kamatani, Naoki Yamada, Hiroki Ohrui, Yosuke Nishide, Satoru Shiobara
  • Patent number: 12317746
    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: Grant
    Filed: November 24, 2021
    Date of Patent: May 27, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironobu Iwawaki, Jun Kamatani, Hirokazu Miyashita, Naoki Yamada, Yosuke Nishide, Satoru Shiobara, Hiroki Ohrui
  • Publication number: 20250163034
    Abstract: As an organic light-emitting element with high durability, an organic light-emitting element in which an organic compound with an indolocarbazole ring and a xanthone ring bonded through a benzene ring, a dibenzothiophene ring, or a xanthone ring is used as a host of a light-emitting layer.
    Type: Application
    Filed: November 13, 2024
    Publication date: May 22, 2025
    Inventors: HIRONOBU IWAWAKI, TAKAYOSHI KIKUCHI, YOSUKE NISHIDE, HIROKI OHRUI
  • Publication number: 20250127036
    Abstract: An organic compound represented by the following general formula [1]: In the general formula [1], Ar1 and Ar2 are each independently selected from an aryl group and a heterocyclic group. Ar1 and Ar2 are represented by different skeletons. When Ar1 and Ar2 have a dibenzothiophene skeleton or a dibenzofuran skeleton, the organic compound has at least one substituent. The substituent represented by R is each independently selected from a deuterium atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aryloxy group, an aryl group, a heterocyclic group, a silyl group, and a cyano group. When a plurality of Rs are present, the Rs may be the same or different. n denotes an integer in the range of 2 to 5, and m1 to m3 each denote an integer in the range of 0 to 4.
    Type: Application
    Filed: December 4, 2024
    Publication date: April 17, 2025
    Inventors: HIROKAZU MIYASHITA, NAOKI YAMADA, YOSUKE NISHIDE, HIROKI OHRUI, HIRONOBU IWAWAKI, TAKAYUKI HORIUCHI
  • Patent number: 12172942
    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: Grant
    Filed: January 23, 2023
    Date of Patent: December 24, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Ohrui, Yosuke Nishide, Jun Kamatani, Kentaro Ito
  • Patent number: 12172941
    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: Grant
    Filed: September 9, 2021
    Date of Patent: December 24, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Naoki Yamada, Hiroki Ohrui, Yosuke Nishide, Jun Kamatani
  • Publication number: 20240407259
    Abstract: The present disclosure provides an organic compound represented by general formula (1): (In general formula (1), R1 to R20 are each independently selected from the group consisting of a hydrogen atom, a deuterium atom, halogen atoms, alkyl groups, alkoxy groups, silyl groups, amino groups, aryl groups, heteroaryl groups, and a cyano group. R1 to R20 may be bonded to one another to form a ring and, optionally, via a chalcogen atom. At least a combination R9 and R10 or R19 and R20 forms a bond. X1 and X2 are each independently selected from the group consisting of chalcogen atoms, methylene groups, and silylene groups.
    Type: Application
    Filed: August 5, 2024
    Publication date: December 5, 2024
    Inventors: YOSUKE NISHIDE, JUN KAMATANI, NAOKI YAMADA, HIRONOBU IWAWAKI, HIROKI OHRUI, TAKAYUKI HORIUCHI, HIROKAZU MIYASHITA
  • Publication number: 20240352047
    Abstract: The present disclosure provides an organic compound represented by any of the following general formulae [1-1] and [1-2]: where R1 to R8 are each selected from a hydrogen atom, a halogen atom, a deuterium atom, and substituted or unsubstituted alkyl, alkoxy, amino, aryl, aryloxy, heteroaryl, cyano, and silyl groups, R4 may be combined with Ar1 to form a ring, Ar1 is a substituted or unsubstituted aryl or heterocyclic group, Ar2 is a substituted or unsubstituted divalent arylene group or divalent linking group, the divalent linking group being derived from a heterocyclic group, X1 and X2 are each selected from an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, and a nitrogen atom having substituent Z, and the substituent Z is a hydrogen atom, a deuterium atom, or a substituted or unsubstituted alkyl, aryl, or heteroaryl group.
    Type: Application
    Filed: June 24, 2024
    Publication date: October 24, 2024
    Inventors: HIROKI OHRUI, JUN KAMATANI, HIRONOBU IWAWAKI, YOSUKE NISHIDE, NAOKI YAMADA, HIROKAZU MIYASHITA
  • Publication number: 20240349592
    Abstract: An organometallic complex represented by any one of formulas (1) to (3): In formulas (1) to (3), R1 and R2 are each independently selected from the group consisting of a hydrogen atom, a deuterium atom, hydrogen atoms, alkyl groups, silyl groups, and aryl groups. R3s are each independently selected from the group consisting of a deuterium atom, halogen atoms, a cyano group, alkyl groups, alkoxy groups, silyl groups, aryl groups, heterocyclic groups, and amino groups. Substituents may form a ring with each other. R4 to R6 are each independently selected from the group consisting of a deuterium atom, halogen atoms, a cyano group, alkyl groups, alkoxy groups, silyl groups, aryl groups, heterocyclic groups, and amino groups.
    Type: Application
    Filed: June 20, 2024
    Publication date: October 17, 2024
    Inventors: NAOKI YAMADA, JUN KAMATANI, HIROKI OHRUI, HIRONOBU IWAWAKI, YOSUKE NISHIDE, HIROKAZU MIYASHITA
  • Publication number: 20240341164
    Abstract: The present disclosure provides an organic light-emitting device including a pair of electrodes, and a light-emitting layer in which the light-emitting layer contains a guest molecule and a host molecule represented by the following general formula [1], and the guest molecule is an organometallic complex represented by the following general formula [2]: where in formula [1], R1 to R12 are each a hydrogen atom or a substituent, at least one of them is a substituent, each X is selected from an oxygen atom and so forth L, L?, and L? are each a different bidentate ligand, each of m, n and p is an integer, m+n+p=3, and a partial structure ML is selected from the foregoing general formulae [2-1] to [2-3], where in the formulae, R21 to R41 are each a hydrogen atom or a substituent.
    Type: Application
    Filed: May 7, 2024
    Publication date: October 10, 2024
    Inventors: YOSUKE NISHIDE, JUN KAMATANI, NAOKI YAMADA, HIROKI OHRUI, HIRONOBU IWAWAKI, HIROKAZU MIYASHITA
  • Publication number: 20240341190
    Abstract: The present disclosure provides an organic compound represented by the following general formula [1-1] or [1-2]. R1 to R22 are each independently selected from a hydrogen atom, an alkyl group, and so forth. Q1 to Q10 are each independently selected from a direct bond and a linking group. The linking group is selected from C(R23) (R24), N(R25), an oxygen atom, a sulfur atom, a selenium atom, and a tellurium atom. R23 to R25 are each independently selected from a hydrogen atom, an alkyl group, and so forth. Each n is 0 or 1, provided that in each of general formulae [1-1] and [1-2], at least one of n is 1. X is selected from an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, and N(R26). R26 is selected from a hydrogen atom, an alkyl group, and so forth.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: YOSUKE NISHIDE, JUN KAMATANI, NAOKI YAMADA, HIROKI OHRUI, HIRONOBU IWAWAKI, HIROKAZU MIYASHITA
  • Publication number: 20240341173
    Abstract: An organic light-emitting device including, in sequence, an anode, a light-emitting layer, a first organic compound layer in contact with the light-emitting layer, and a cathode, in which the light-emitting layer contains a host material and a guest material, the host material is a hydrocarbon compound whose carbon atoms are SP2 carbon atoms only, the hydrocarbon compound is represented by any of the following formulae [1-1] to [1-6]: Ar1 and Ar2 are each independently selected from aryl groups, each of Ar1 and Ar2 may further contain substituents, R1 to R8 are each independently selected from a hydrogen atom and aryl groups. The guest material is a light-emitting material containing a fluoranthene skeleton, and the first organic compound layer contains a compound containing fused polycyclic hydrocarbon skeleton having three or more rings and five or less rings.
    Type: Application
    Filed: June 19, 2024
    Publication date: October 10, 2024
    Inventors: YOSUKE NISHIDE, HIROKAZU MIYASHITA, NAOKI YAMADA, HIRONOBU IWAWAKI, JUN KAMATANI, ITARU TAKAYA, HIROKI OHRUI
  • Publication number: 20240309032
    Abstract: An organometallic complex represented by the general formula [1]: Ir(L)m(L?)n??[1] L and L? denote different bidentate ligands. m is 1 or 2, and m+n=3, wherein the partial structure Ir(L)m is represented by the general formula [2-1] or [2-2], wherein R1 to R30 are selected from a hydrogen atom, an alkyl group, and the like, when at least one of R1 to R3 and at least one of R15 to R17 are not a hydrogen atom or a deuterium atom and when two of R1 to R3 and two of R15 to R17 are a hydrogen atom or a deuterium atom, the other one is a secondary or higher alkyl group, and L? denotes a bidentate ligand represented by the general formula [3] or [4]. R41 to R43 and R32 to R39 are selected from a hydrogen atom, an alkyl group, and the like.
    Type: Application
    Filed: November 14, 2023
    Publication date: September 19, 2024
    Inventors: YOSUKE NISHIDE, HIROKI OHRUI, HIRONOBU IWAWAKI, TAKAYUKI HORIUCHI, HIROKAZU MIYASHITA, NAOKI YAMADA
  • Publication number: 20240301285
    Abstract: The present disclosure provides an organic compound represented by general formula [1]. In formula [1], R1 to R22 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, and so forth. Ar is selected from the group consisting of a residue of an aromatic hydrocarbon and a residue of a heterocyclic compound. Q1 to Q4 are each independently a direct bond or a linking group. The linking group is selected from the group consisting of C(R23)(R24), N(R25), an oxygen atom, a sulfur atom, a selenium atom, and a tellurium atom. R23 to R25 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, and so forth. k, l, m, and n are each 0 or 1.
    Type: Application
    Filed: May 16, 2024
    Publication date: September 12, 2024
    Inventors: HIRONOBU IWAWAKI, JUN KAMATANI, YOSUKE NISHIDE, HIROKI OHRUI, NAOKI YAMADA, HIROKAZU MIYASHITA
  • Publication number: 20240298516
    Abstract: The present disclosure provides an organic compound represented by general formula [1] In formula [1], R1 and R2 are each independently selected from a hydrogen atom, an alkyl group, and so forth, where Each R3 is independently selected from a deuterium atom, an alkyl group, and so forth, and l is an integer of 0 or more and 8 or less, m is an integer of 1 or more and 3 or less, and n is an integer of 0 or more and 2 or less, provided that m+n is 3, and X is a bidentate ligand, and a partial structure IrX is any of structures represented by general formulae [2] and [3].
    Type: Application
    Filed: April 8, 2024
    Publication date: September 5, 2024
    Inventors: NAOKI YAMADA, JUN KAMATANI, HIRONOBU IWAWAKI, HIROKI OHRUI, YOSUKE NISHIDE, HIROKAZU MIYASHITA
  • Publication number: 20240298458
    Abstract: An organic light emitting element that includes an anode, a cathode, a first organic compound layer, a light emission layer containing a host material and a light emitting dopant material, and a second organic compound layer. The relationships concerning HOMO levels and LUMO levels of the host material and the light emitting dopant material in the light emission layer are specified, and the materials for these layers are selected so that the hole mobility of the first organic compound layer is equal to or greater than the electron mobility of the second organic compound layer.
    Type: Application
    Filed: February 21, 2024
    Publication date: September 5, 2024
    Inventors: HIROKI OHRUI, YOSUKE NISHIDE, ITARU TAKAYA
  • Publication number: 20240292737
    Abstract: An organic light-emitting element including: a first electrode; a first light-emitting unit; a charge generation portion; a second light-emitting unit; and a second electrode in this order, wherein the charge generation portion includes at least one n-type charge generation layer, the n-type charge generation layer contains at least a first organic compound and a second organic compound.
    Type: Application
    Filed: January 25, 2024
    Publication date: August 29, 2024
    Inventors: YOSUKE NISHIDE, HIRONOBU IWAWAKI, ITARU TAKAYA, HIROKI OHRUI, SATORU SHIOBARA, NAOKI YAMADA
  • Patent number: 11964930
    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: Grant
    Filed: September 2, 2020
    Date of Patent: April 23, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroki Ohrui, Hirokazu Miyashita, Satoru Shiobara, Yosuke Nishide, Naoki Yamada, Jun Kamatani
  • Publication number: 20240130151
    Abstract: The present disclosure provides an organic light-emitting element including: a first electrode; a light-emitting layer; and a second electrode, wherein the light-emitting layer contains at least a first compound in which a naphthalene ring and a tricyclic or higher cyclic fused ring are bonded together by a single bond and a second compound in which the naphthalene ring and the fused polycyclic ring of the first compound are further cyclized.
    Type: Application
    Filed: September 22, 2023
    Publication date: April 18, 2024
    Inventors: HIROKI OHRUI, YOSUKE NISHIDE, HIRONOBU IWAWAKI, TAKAYUKI HORIUCHI, HIROKAZU MIYASHITA, NAOKI YAMADA
  • Publication number: 20240099135
    Abstract: An organic compound represented by the following formula [1]: Ar is selected from the group consisting of a substituted or unsubstituted aryl group and a substituted or unsubstituted heteroaryl group. R1 and R2 are independently selected from the group consisting of a hydrogen atom and a substituent. m and n are selected from integers of 1 or more and 3 or less.
    Type: Application
    Filed: August 25, 2023
    Publication date: March 21, 2024
    Inventors: HIRONOBU IWAWAKI, HIROKI OHRUI, YOSUKE NISHIDE, HIROKAZU MIYASHITA, TAKAYUKI HORIUCHI, NAOKI YAMADA