Patents by Inventor Jun Kamatani

Jun Kamatani 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: 20230093269
    Abstract: A organic light-emitting element including a positive electrode, a light-emitting layer, and a negative electrode in this order, wherein the light-emitting layer contains a dopant material, a host material, and an assist material, the dopant material is a compound represented by the following general formula [1], the host material is a hydrocarbon compound, and the assist material has a lower LUMO level than the host material. In the formula [1], R1 to R10 denote a hydrogen atom, an alkyl group, or the like. X denotes O or S. m denotes an integer in the range of 1 to 3, and n denotes an integer in the range of 0 to 2, provided that m+n is 3. The partial structure IrLn is any one of structures represented by the following formulae [2] and [3], wherein R11 to R21 denote a hydrogen atom, an alkyl group, or the like.
    Type: Application
    Filed: July 26, 2022
    Publication date: March 23, 2023
    Inventors: Hironobu Iwawaki, Jun Kamatani, Naoki Yamada, Yosuke Nishide, Hirokazu Miyashita
  • Publication number: 20230077028
    Abstract: The present disclosure relates to an organic light-emitting device including an insulating layer, an organic light-emitting element disposed on the main surface of the insulating layer, and a color filter layer covering the organic light-emitting element and including a first color filter that passes light with a first wavelength and a second color filter that passes light with a second wavelength different from the first wavelength, wherein the concentration of an organic alkali having a nitrogen atom and a hydroxy group contained in the color filter layer is less than 108.2 ng/cm2.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 9, 2023
    Inventors: Mariko Furuta, Yoshihisa Kawamura, Yuto Nozaki, Yuuki Kumagae, Kotaro Abukawa, Kunihito Ide, Jun Kamatani, Satoru Shiobara, Nobuhiko Sato
  • Patent number: 11591279
    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: October 22, 2019
    Date of Patent: February 28, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Ohrui, Yosuke Nishide, Jun Kamatani, Kentaro Ito
  • Patent number: 11555028
    Abstract: An organic compound represented by the following general formula [1] is excellent in thermal stability. In the general formula [1], R1 to R12 are each independently selected from the group consisting of a hydrogen atom and a substituent. Symbol A is selected from the group consisting of a divalent residue of naphthalene, phenanthrene, fluorene, benzofluorene, dibenzofluorene or spirofluorene, and a heteroarylene group having 4 to 12 carbon atoms. Symbol B is selected from the group consisting of an arylene group having 6 to 25 carbon atoms and a heteroarylene group having 4 to 12 carbon atoms. Symbol n is an integer of 0 to 3.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: January 17, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yosuke Nishide, Naoki Yamada, Hiroki Ohrui, Hironobu Iwawaki, Hirokazu Miyashita, Jun Kamatani
  • Patent number: 11557727
    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: Grant
    Filed: December 13, 2019
    Date of Patent: January 17, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Naoki Yamada, Hiroki Ohrui, Hironobu Iwawaki, Yosuke Nishide, Jun Kamatani
  • Patent number: 11522137
    Abstract: The present disclosure provides an organic light emitting element which has a pair of electrodes and an organic compound layer disposed therebetween and in which the organic compound layer contains an organic compound represented by the following general formula [1], wherein in the formula [1], Ar1 and Ar2 each independently represent an aromatic hydrocarbon group or a heteroaromatic ring group, R1 to R4 are each independently selected from a hydrogen atom or a substituent, R1 and R2 and R3 and R4 each may form a benzene ring, wherein the benzene ring may have at least one substituent.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: December 6, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Jun Kamatani
  • Patent number: 11492313
    Abstract: An organic compound is represented by formula (1). In the formula (1), R1 to R24 are each independently selected from the group consisting of 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 aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: November 8, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Jun Kamatani
  • Publication number: 20220320444
    Abstract: An organic compound represented by formula [1], where in formula [1], R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, and other substituents, and X1 is oxygen, sulfur, selenium, tellurium, or a CR9R10 group, in which R9 and R10 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, and other substituents, and at least one of R1 to R8 is a group represented by formula [2].
    Type: Application
    Filed: March 18, 2022
    Publication date: October 6, 2022
    Inventors: Hirokazu Miyashita, Naoki Yamada, Yosuke Nishide, Hironobu Iwawaki, Jun Kamatani
  • Patent number: 11453629
    Abstract: An organic compound represented by formula (1). In formula (1), each of R1 to R22 is independently selected from the group consisting of 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 aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 27, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Jun Kamatani
  • Patent number: 11447437
    Abstract: An organic compound is represented by formula (1). In the formula (1), R1 to R24 are each independently selected from the group consisting of 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 aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: September 20, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Jun Kamatani
  • Publication number: 20220267256
    Abstract: The present disclosure provides an organic compound that has a mother skeleton with a fused-ring structure, an electron-withdrawing group bonded to the mother skeleton, and an electron-donating group bonded to the mother skeleton, wherein the electron-withdrawing group is bonded at a position satisfying the following relationship in the mother skeleton.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 25, 2022
    Inventors: Satoru Shiobara, Naoki Yamada, Hirokazu Miyashita, Yuto Ito, Isao Kawata, Jun Kamatani
  • 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: 20220251106
    Abstract: An organic compound, represented by formula [1] or [2], suitably used for a thermally activated delayed fluorescent device: where X1 to X18 and X21 to X38 are each independently selected from the group consisting of a hydrogen atom, and substituents, Y is oxygen, sulfur, selenium, tellurium, a CR1R2 group, or a carbonyl group, where R1 and R2 are each independently selected from the group consisting of a hydrogen atom, and substituents, and Z is an alkyl group, an aryl group, or a heterocyclic group.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 11, 2022
    Inventors: Naoki Yamada, Jun Kamatani, Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara
  • Patent number: 11411193
    Abstract: An organic light emitting element includes, in sequence, an anode, a first light emitting layer, a second light emitting layer, and a cathode. The first light emitting layer includes a first compound and a first light emitting material. The second light emitting layer includes a second compound and a second light emitting material having an energy gap different from an energy gap of the first light emitting material. The organic light emitting element satisfies relations (a) to (c). LUMO(H1)>LUMO(D1)??(a) LUMO(H2)>LUMO(D2)??(b) LUMO(H2)?LUMO(D2)>LUMO(H1)?LUMO(D1)??(c) Where LUMO (H1), LUMO (D1), LUMO (H2), and LUMO (D2) represent a LUMO level of the first compound, a LUMO level of the first light emitting material, a LUMO level of the second compound, and a LUMO level of the second light emitting material, respectively.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: August 9, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Itaru Takaya, Naoki Yamada, Isao Kawata, Yuto Ito, Jun Kamatani
  • 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: 20220216423
    Abstract: An organic compound is represented by general formula [1-1]. In general formula [1-1], X is an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom, and R1 to R18 are each independently selected from the group consisting of 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 aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted silyl group, and a cyano group.
    Type: Application
    Filed: December 20, 2021
    Publication date: July 7, 2022
    Inventors: Yosuke Nishide, Jun Kamatani, Naoki Yamada, Hironobu Iwawaki, Hirokazu Miyashita
  • Patent number: 11370733
    Abstract: An organic compound that emits red light having a long wavelength is represented by formula (1). In formula (1), R1 to R24 are each independently selected from the group consisting of 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 aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: June 28, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Jun Kamatani, Yosuke Nishide, Hirokazu Miyashita
  • 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
  • Patent number: 11342514
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Kamatani, Masashi Hashimoto, Satoshi Igawa, Shinjiro Okada
  • Publication number: 20220144857
    Abstract: There is provided an organic compound represented by formula [1-1] or [1-2]: where R1 to R20 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aromatic hydrocarbon group, a heterocyclic group, an aryloxy group, a silyl group, and a cyano group, in which at least one of R1 to R4 and R6 to R9 and at least one of R11 to R14 and R16 to R19 are amino groups; and X1 to X4 are each oxygen, sulfur, selenium, or tellurium and are optionally the same or different.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 12, 2022
    Inventors: Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada, Jun Kamatani