Patents by Inventor Takamune Hattori

Takamune Hattori 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: 20200020865
    Abstract: An organic electroluminescence element including an anode, a plurality of organic functional layers including a light-emitting layer, and a cathode in that order wherein the organic functional layer containing a compound having a structure represented by the following general formula (1) is arranged between the light-emitting layer and the cathode, wherein X, X1 to X12, R1, and L1 are as defined in the specification.
    Type: Application
    Filed: October 23, 2017
    Publication date: January 16, 2020
    Inventors: Shinya OTSU, Motoaki SUGINO, Takamune HATTORI
  • Patent number: 10411203
    Abstract: Provided is an organic electroluminescent element containing an anode, a cathode, and an organic functional layer containing one or a plurality of light-emitting layers, the organic functional layer being interposed between the anode and the cathode, wherein at least one of the light-emitting layers contains a compound having two condensed aromatic rings bonded to each other with a linking group; and the condensed aromatic rings form a ?-? stacking structure in the molecule.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: September 10, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Ryutaro Sugawara, Takamune Hattori, Hiroshi Kita
  • Patent number: 10135002
    Abstract: One objective of the present invention is to provide an organic EL element which is suppressed in change in the resistance of a light emitting layer after passing a current therethrough for a long period of time, thereby having good emission spectrum chromaticity, and which is suppressed in change in the emission characteristics over time. Another objective of the present invention is to provide a lighting device and a display device, each of which uses the organic EL element. An organic electroluminescent element of the present invention is provided with a pair of electrodes and one or more organic layers that are arranged between the pair of electrodes, and is characterized in that one or more layers among the organic layers contain a compound that has a structure represented by general formula (1).
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 20, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kaori Ono, Norio Miura, Takamune Hattori
  • Patent number: 9972802
    Abstract: The organic electroluminescent element has a pair of electrodes and at least two organic functional layers including a light-emitting layer on a substrate. The light-emitting layer contains a host compound and a phosphorescent dopant. The light-emitting layer or the layer adjacent to the light-emitting layer contains quantum dots.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: May 15, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Dai Ikemizu, Takayuki Iijima, Takamune Hattori, Yasushi Okubo, Hideo Taka
  • Patent number: 9944629
    Abstract: A material for an organic electroluminescent element contains a compound represented by Formula (1): where R1 to R3 independently represent a group such as a deuterium atom and a halogen atom; at least one of R1 to R3 is a group represented by Formula (2); if pluralities of R1 to R3 are present, these substituents may be the same or different or may be bonded to each other to form a ring; n1 represents an integer of 0 to 8; n2 represents an integer of 0 to 3; n3 represents an integer of 0 to 4; n1+n2+n3 is 1 or more; Cbz represents a carbazolyl group; X represents an oxygen atom or a sulfur atom; and L1 represents a single bond or a divalent linking group.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: April 17, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takamune Hattori, Norio Miura, Kaori Ono
  • Patent number: 9666818
    Abstract: A tandem-type organic photoelectric conversion element has at least a first electrode, a second electrode, and a plurality of bulk heterojunction layers each comprising a p-type organic semiconductor material and an n-type organic semiconductor material. The tandem-type organic photoelectric conversion element and a solar battery are characterized in that when the absorption wavelengths of the bulk heterojunction layers are such that a second bulk heterojunction layer absorbs up to a longer wavelength than a first bulk heterojunction layer, the LUMO energy level (LUMO(n1)) of the film of the n-type semiconductor in the first bulk heterojunction layer and the LUMO energy level (LUMO(n2)) of the film of the n-type semiconductor in the second bulk heterojunction layer satisfy the following equation (1): 0.4 eV?LUMO(n1)?LUMO(n2)?0.1 eV??(1).
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: May 30, 2017
    Assignee: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yasushi Okubo, Noriko Yasukawa, Hiroaki Itoh, Takamune Hattori
  • Publication number: 20160336522
    Abstract: Provided is an organic electroluminescent element containing an anode, a cathode, and an organic functional layer containing one or a plurality of light-emitting layers, the organic functional layer being interposed between the anode and the cathode, wherein at least one of the light-emitting layers contains a compound having two condensed aromatic rings bonded to each other with a linking group; and the condensed aromatic rings form a ?-? stacking structure in the molecule.
    Type: Application
    Filed: January 28, 2015
    Publication date: November 17, 2016
    Inventors: Ryutaro SUGAWARA, Takamune HATTORI, Hiroshi KITA
  • Patent number: 9318707
    Abstract: An organic photoelectric conversion element which sequentially comprises a transparent first electrode, a photoelectric conversion layer that contains a p-type organic semiconductor material and an n-type organic semiconductor material, and a second electrode in this order on a transparent substrate.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: April 19, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takamune Hattori, Yasushi Okubo
  • Publication number: 20160056392
    Abstract: One objective of the present invention is to provide an organic EL element which is suppressed in change in the resistance of a light emitting layer after passing a current therethrough for a long period of time, thereby having good emission spectrum chromaticity, and which is suppressed in change in the emission characteristics over time. Another objective of the present invention is to provide a lighting device and a display device, each of which uses the organic EL element. An organic electroluminescent element of the present invention is provided with a pair of electrodes and one or more organic layers that are arranged between the pair of electrodes, and is characterized in that one or more layers among the organic layers contain a compound that has a structure represented by general formula (1).
    Type: Application
    Filed: March 28, 2014
    Publication date: February 25, 2016
    Inventors: Kaori ONO, Norio MIURA, Takamune HATTORI
  • Publication number: 20150322337
    Abstract: A material for an organic electroluminescent element contains a compound represented by Formula (1): where R1 to R3 independently represent a group such as a deuterium atom and a halogen atom; at least one of R1 to R3 is a group represented by Formula (2); if pluralities of R1 to R3 are present, these substituents may be the same or different or may be bonded to each other to form a ring; n1 represents an integer of 0 to 8; n2 represents an integer of 0 to 3; n3 represents an integer of 0 to 4; n1+n2+n3 is 1 or more; Cbz represents a carbazolyl group; X represents an oxygen atom or a sulfur atom; and L1 represents a single bond or a divalent linking group.
    Type: Application
    Filed: December 2, 2013
    Publication date: November 12, 2015
    Inventors: Takamune HATTORI, Norio MIURA, Kaori ONO
  • Publication number: 20150076469
    Abstract: The organic electroluminescent element has a pair of electrodes and at least two organic functional layers including a light-emitting layer on a substrate. The light-emitting layer contains a host compound and a phosphorescent dopant. The light-emitting layer or the layer adjacent to the light-emitting layer contains quantum dots.
    Type: Application
    Filed: April 12, 2013
    Publication date: March 19, 2015
    Inventors: Dai Ikemizu, Takayuki Iijima, Takamune Hattori, Yasushi Okubo, Hideo Taka
  • Publication number: 20140338750
    Abstract: The present invention has an object to provide an organic photoelectric conversion element exhibiting excellent durability. The present invention is to provide an organic photoelectric conversion element comprising a conjugated polymer compound having a partial structure represented by the following Chemical Formula 1. wherein X independently represents O, S, NR2, or CR3?CR4; W independently represents CH or N; L independently represents a linear or branched alkylene group having 1 to 10 carbon atoms; Y1 and Y2 independently represent O or NR5; Z independently represents C, S, or P; R1 to R5 independently represent H, a linear or branched alkyl group having 1 to 24 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, or a heteroaryl group having 1 to 20 carbon atoms; and a, b, and c independently represent an integer satisfying the relation: 3?a+b+c?4 and 0?a, b, c?2.
    Type: Application
    Filed: December 10, 2012
    Publication date: November 20, 2014
    Inventors: Takayuki Iijima, Yasushi Okubo, Takamune Hattori
  • Publication number: 20140319509
    Abstract: An organic photoelectric conversion element which sequentially comprises a transparent first electrode, a photoelectric conversion layer that contains a p-type organic semiconductor material and an n-type organic semiconductor material, and a second electrode in this order on a transparent substrate.
    Type: Application
    Filed: November 14, 2012
    Publication date: October 30, 2014
    Inventors: Takamune Hattori, Yasushi Okubo
  • Patent number: 8437067
    Abstract: Provided is an electrochemical display element composed of a simple member structure, capable of driving at low voltage, and exhibiting high display contrast and white display reflectance, and further to provide the electrochemical display element exhibiting reduced variation in reflectance during repetitive driving even after storage for a long duration. Disclosed is an electrochemical display element possessing an N-oxyl derivative represented by the following Formula (1), an electrolyte and a pair of facing electrodes: wherein each of R1, R2, R3 and R4 independently represents an aliphatic hydrocarbon group, an aromatic hydrocarbon group or a heterocyclic group, which may have a hydrogen atom or a substituent; Z1 represents a group of atoms having 2 or 3 atoms to form a cyclic structure; and Z1 may also have a substituent.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: May 7, 2013
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Takamune Hattori, Osamu Ishige, Takeshi Hakii
  • Publication number: 20120199186
    Abstract: A tandem-type organic photoelectric conversion element has at least a first electrode, a second electrode, and a plurality of bulk heterojunction layers each comprising a p-type organic semiconductor material and an n-type organic semiconductor material. The tandem-type organic photoelectric conversion element and a solar battery are characterized in that when the absorption wavelengths of the bulk heterojunction layers are such that a second bulk heterojunction layer absorbs up to a longer wavelength than a first bulk heterojunction layer, the LUMO energy level (LUMO(n1)) of the film of the n-type semiconductor in the first bulk heterojunction layer and the LUMO energy level (LUMO(n2)) of the film of the n-type semiconductor in the second bulk heterojunction layer satisfy the following equation (1): 0.4 eV?LUMO(n1)?LUMO(n2)?0.1 eV . . .
    Type: Application
    Filed: September 8, 2010
    Publication date: August 9, 2012
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yasushi Okubo, Noriko Yasukawa, Hiroaki Itoh, Takamune Hattori
  • Publication number: 20110013261
    Abstract: Provided is an electrochemical display element composed of a simple member structure, capable of driving at low voltage, and exhibiting high display contrast and white display reflectance, and further to provide the electrochemical display element exhibiting reduced variation in reflectance during repetitive driving even after storage for a long duration. Disclosed is an electrochemical display element possessing an N-oxyl derivative represented by the following Formula (1), an electrolyte and a pair of facing electrodes: wherein each of R1, R2, R3 and R4 independently represents an aliphatic hydrocarbon group, an aromatic hydrocarbon group or a heterocyclic group, which may have a hydrogen atom or a substituent; Z1 represents a group of atoms having 2 or 3 atoms to form a cyclic structure; and Z1 may also have a substituent.
    Type: Application
    Filed: February 23, 2009
    Publication date: January 20, 2011
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Takamune Hattori, Osamu Ishige, Takeshi Hakii