Patents by Inventor Ryuhei FURUE

Ryuhei FURUE 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).

  • Nitrogen-containing compound for organic electroluminescence device
    Patent number: 12114564
    Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the emission layer may include a nitrogen-containing compound represented by Formula 1, thereby exhibiting a long service life.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: October 8, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yuuki Miyazaki, Ryuhei Furue
  • LIGHT EMITTING ELEMENT AND FUSED POLYCYCLIC COMPOUND FOR THE LIGHT EMITTING ELEMENT
    Publication number: 20240334829
    Abstract: A light emitting element includes a first electrode, a second electrode on the first electrode, and at least one functional layer which is disposed between the first electrode and the second electrode and includes a fused polycyclic compound represented by Formula 1:
    Type: Application
    Filed: February 15, 2024
    Publication date: October 3, 2024
    Inventors: Hirokazu KUWABARA, Ryuhei FURUE, Yuma AOKI
  • LIGHT EMITTING ELEMENT AND FUSED POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20240292751
    Abstract: Embodiments provide a light emitting element that includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer includes a first compound represented by Formula 1, which is explained in the specification.
    Type: Application
    Filed: October 19, 2023
    Publication date: August 29, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ryuhei FURUE, Hirokazu KUWABARA
  • LIGHT EMITTING ELEMENT AND FUSED POLYCYCLIC COMPOUND FOR THE LIGHT EMITTING ELEMENT
    Publication number: 20240284796
    Abstract: A light emitting element including a first electrode, a second electrode facing the first electrode, and a functional layer provided between the first electrode and the second electrode is provided. The functional layer includes a fused polycyclic compound having sterically bulky substituents that may control aggregation and increase intermolecular distances thereby reducing energy transfer and increasing the integrity of the constituent layers of the light emitting element (e.g., a blue light emitting element).
    Type: Application
    Filed: November 7, 2023
    Publication date: August 22, 2024
    Inventors: Hirokazu KUWABARA, Keigo HOSHI, Ryuhei FURUE
  • LIGHT EMITTING ELEMENT AND FUSED POLYCYCLIC COMPOUND FOR THE LIGHT EMITTING ELEMENT
    Publication number: 20240284795
    Abstract: Embodiments provide a fused polycyclic compound and a light emitting element that includes the fused polycyclic compound. The light emitting element includes a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the at least one functional layer includes the fused polycyclic compound. The fused polycyclic compound is represented by Formula 1, which is explained in the specification.
    Type: Application
    Filed: October 10, 2023
    Publication date: August 22, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hirokazu KUWABARA, Keigo HOSHI, Ryuhei FURUE
  • LIGHT EMITTING ELEMENT AND FUSED POLYCYCLIC COMPOUND FOR THE LIGHT EMITTING ELEMENT
    Publication number: 20240268229
    Abstract: A light emitting element may include a first electrode, a second electrode on the first electrode, at least one functional layer which is disposed between the first electrode and the second electrode and includes a fused polycyclic compound represented by Formula 1, the fused polycyclic compound including at least one electron-withdrawn group at the meta position with respect to the boron atom in the fused ring core of the fused polycyclic compound.
    Type: Application
    Filed: October 19, 2023
    Publication date: August 8, 2024
    Inventors: Keigo HOSHI, Ryuhei FURUE, Yoshiro SUGITA
  • Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    Patent number: 12058927
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound represented by Formula 1 below, and shows high emission efficiency:
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: August 6, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hirokazu Kuwabara, Ryuhei Furue
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20240260467
    Abstract: Embodiments provide a light emitting element that includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. the emission layer includes a polycyclic compound represented by Formula 1, which is explained in the specification.
    Type: Application
    Filed: December 6, 2023
    Publication date: August 1, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hirokazu KUWABARA, Keigo HOSHI, Ryuhei FURUE
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20240260292
    Abstract: Embodiments provide a light emitting element that includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a compound represented by Formula 1, thereby exhibiting long service life characteristics. Formula 1 is explained in the specification.
    Type: Application
    Filed: December 5, 2023
    Publication date: August 1, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hirokazu KUWABARA, Keigo HOSHI, Ryuhei FURUE
  • LIGHT EMITTING DEVICE AND FUSED POLYCYCLIC COMPOUND FOR THE LIGHT EMITTING DEVICE
    Publication number: 20240215445
    Abstract: A light emitting device includes a first electrode, a second electrode facing the first electrode, and a functional layer disposed between the first electrode and the second electrode, wherein the functional layer includes a first compound represented by Formula 1 below: In Formula 1, the substituents are the same as defined in the Detailed Description.
    Type: Application
    Filed: August 17, 2023
    Publication date: June 27, 2024
    Inventors: Yuuki MIYAZAKI, Hirokazu KUWABARA, Ryuhei FURUE, Yoshiro SUGITA, Yuji SUZAKI
  • LIGHT EMITTING DEVICE AND POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20240215446
    Abstract: Embodiments provide a light emitting device that includes a first electrode, a second electrode facing the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the at least one functional layer includes a first compound represented by Formula 1, and at least one of a second compound represented by Formula HT and a third compound represented by Formula ET, and wherein Formula 1, Formula HT, and Formula ET are each explained in the specification.
    Type: Application
    Filed: September 19, 2023
    Publication date: June 27, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ryuhei FURUE, Yoshiro SUGITA
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20240138263
    Abstract: A light emitting element of one or more embodiments includes a first electrode, a second electrode oppositely to the first electrode, and an emission layer between the first electrode and the second electrode. The light emitting element of one or more embodiments includes a polycyclic compound represented by a specific chemical structure in the emission layer, thereby showing improved emission efficiency and life characteristics.
    Type: Application
    Filed: September 18, 2023
    Publication date: April 25, 2024
    Inventors: Makoto YAMAMOTO, Keigo HOSHI, Yuji SUZAKI, Hirokazu KUWABARA, Nobutaka AKASHI, Ryuhei FURUE, Toshiyuki MATSUURA, Yoshiro SUGITA, Yuma AOKI, Yuuki MIYAZAKI
  • Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    Patent number: 11889752
    Abstract: An organic electroluminescence device having high light emission efficiency is provided, which includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hirokazu Kuwabara, Nobutaka Akashi, Ryuhei Furue
  • Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    Patent number: 11871651
    Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hirokazu Kuwabara, Yoshiro Sugita, Ryuhei Furue
  • Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    Patent number: 11844272
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and a plurality of functional layers disposed between the first electrode and the second electrode, wherein at least one functional layer of the plurality of functional layers includes a polycyclic compound represented by Formula 1, thereby showing excellent light emitting efficiency in a short wavelength region:
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: December 12, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ryuhei Furue, Hirokazu Kuwabara, Nobutaka Akashi
  • Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    Patent number: 11785837
    Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer may include a polycyclic compound represented by Formula 1, thereby exhibiting high luminous efficiency: wherein at least one selected from R1 to R3 is represented by Formula 2:
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: October 10, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hirokazu Kuwabara, Ryuhei Furue
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR LIGHT EMITTING ELEMENT
    Publication number: 20230263047
    Abstract: A light emitting element includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode and including a polycyclic compound represented by Formula 1 below, thereby showing high emission efficiency. The substituents of Formula 1 are the same as defined in the detailed descriptions.
    Type: Application
    Filed: November 16, 2022
    Publication date: August 17, 2023
    Inventors: Yoshiro SUGITA, Keigo HOSHI, Ryuhei FURUE
  • LIGHT EMITTING ELEMENT
    Publication number: 20230232702
    Abstract: A light emitting element includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a first compound represented by Formula 1, and at least one of a second compound, a third compound, and a fourth compound. The light emitting element including the first compound represented by Formula 1 exhibits high efficiency and a long lifespan.
    Type: Application
    Filed: September 28, 2022
    Publication date: July 20, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ryuhei FURUE, Yoshiro SUGITA
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR LIGHT EMITTING ELEMENT
    Publication number: 20230225208
    Abstract: Provided is a light emitting element includes a polycyclic compound in which an electron donor substituent, which may increase the photoluminescence quantum yield (PLQY) and oscillator strength (f), is introduced at the para-position of a boron atom, thereby exhibiting high efficiency and long service life characteristics.
    Type: Application
    Filed: December 23, 2022
    Publication date: July 13, 2023
    Inventors: Keigo HOSHI, Ryuhei FURUE, Yoshiro SUGITA
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20230219981
    Abstract: Embodiments provide a polycyclic compound and a light emitting element that includes the polycyclic compound. The light emitting element includes a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the at least one functional layer includes the polycyclic compound, which is represented by Formula 1. Formula 1 is defined in the specification. The light emitting element exhibits a long service life.
    Type: Application
    Filed: December 5, 2022
    Publication date: July 13, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hirokazu KUWABARA, Ryuhei FURUE, Yuma AOKI, Yuuki MIYAZAKI