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).

  • 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
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20230217826
    Abstract: A light emitting element includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode and includes a compound represented by Formula 1 below, thereby exhibiting a long service life characteristic.
    Type: Application
    Filed: January 3, 2023
    Publication date: July 6, 2023
    Inventors: Hirokazu KUWABARA, Ryuhei FURUE, Yuma AOKI, Yuuki MIYAZAKI
  • LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR LIGHT EMITTING ELEMENT
    Publication number: 20230217819
    Abstract: A light emitting element that includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode is provided. The emission layer includes a polycyclic compound represented by Formula 1. The light emitting element shows a high emission efficiency and long-life characteristics.
    Type: Application
    Filed: September 15, 2022
    Publication date: July 6, 2023
    Inventor: Ryuhei FURUE
  • FUSED POLYCYCLIC COMPOUND AND LIGHT EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20230143071
    Abstract: Provided is a light emitting device including a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a host and a dopant, and the host includes a compound represented by Formula E-2a or Formula E-2b, and the dopant includes a fused polycyclic compound represented by Formula 1.
    Type: Application
    Filed: July 26, 2022
    Publication date: May 11, 2023
    Inventors: Hirokazu KUWABARA, Ryuhei FURUE, Yuma AOKI, Yuuki MIYAZAKI
  • FUSED POLYCYCLIC COMPOUND AND LIGHT EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20230120766
    Abstract: A light emitting device includes an emission layer disposed between electrodes. The emission layer includes a host and a delayed fluorescence dopant.
    Type: Application
    Filed: June 7, 2022
    Publication date: April 20, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yuji SUZAKI, Hirokazu KUWABARA, Ryuhei FURUE, Tetuji HAYANO
  • Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    Patent number: 11605788
    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 and shows high emission efficiency and excellent color reproducibility.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ryuhei Furue, Yuuki Miyazaki
  • LIGHT EMITTING DEVICE AND POLYCYCLIC COMPOUND FOR THE SAME
    Publication number: 20230057142
    Abstract: A light emitting device of an embodiment 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 polycyclic compound of an embodiment represented by Formula 1. The light emitting device including the polycyclic compound of an embodiment may show improved efficiency and device life.
    Type: Application
    Filed: February 18, 2022
    Publication date: February 23, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yuji SUZAKI, Hirokazu KUWABARA, Ryuhei FURUE, Tetuji HAYANO
  • Organic electroluminescence device and condensed polycyclic compound for organic electroluminescence device
    Patent number: 11581493
    Abstract: An organic electroluminescence device (OLED) of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode The emission layer may include a condensed polycyclic compound represented by Formula 1, which is connected to two or three substituents represented by Formula 2, and the OLED may exhibit excellent luminous efficiency:
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: February 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hirokazu Kuwabara, Ryuhei Furue
  • Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    Patent number: 11557734
    Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound having a fused ring system and represented by Formula 1 to achieve high efficiency and improved efficiency drop characteristics in an emission wavelength range:
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ryuhei Furue, Hirokazu Kuwabara
  • Organic electroluminescence device and compound for organic electroluminescence device
    Patent number: 11527726
    Abstract: An organic electroluminescence device including a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a compound represented by Formula 1 to achieve high efficiency and an improved efficiency drop in a deep blue emission wavelength region:
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: December 13, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ryuhei Furue, Hirokazu Kuwabara, Nobutaka Akashi
  • Organic electroluminescence device and nitrogen-containing compound for organic electroluminescence device
    Patent number: 11430960
    Abstract: An organic electroluminescence device exhibiting high light emission efficiency is provided, which 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: September 17, 2020
    Date of Patent: August 30, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hirokazu Kuwabara, Ryuhei Furue
  • ORGANIC ELECTROLUMINESCENCE DEVICE AND POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20220246850
    Abstract: An organic electroluminescence device of an embodiment 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. The emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency.
    Type: Application
    Filed: November 22, 2021
    Publication date: August 4, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ryuhei FURUE, Hirokazu KUWABARA, Yoshiro SUGITA, Yuji SUZAKI, Yuma AOKI