Patents by Inventor Tetsuji Hayano

Tetsuji Hayano 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: 20240268230
    Abstract: A light emitting element of one or more embodiments includes a first electrode, a second electrode provided on the first electrode, and at least one functional layer provided between the first electrode and the second electrode, and including a fused polycyclic compound having at least one sterically bulky substituent.
    Type: Application
    Filed: October 27, 2023
    Publication date: August 8, 2024
    Inventors: Yuma AOKI, Yuji SUZAKI, Tetsuji HAYANO
  • Publication number: 20240268231
    Abstract: A light emitting element includes a first electrode, a second electrode facing the first electrode, and at least one functional layer between the first electrode and the second electrode, wherein the at least one functional layer includes a first compound represented by Formula 1, and thus the light emitting element may exhibit long lifespan.
    Type: Application
    Filed: November 17, 2023
    Publication date: August 8, 2024
    Inventors: Yuma AOKI, Tetsuji HAYANO, Yuji SUZAKI
  • Patent number: 12058928
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the polycyclic compound includes a boranamine derivative, a first ring and a second ring, each directly linked to a boron atom of the boranamine derivative, a third ring and a fourth ring, each directly linked to a nitrogen atom of the boranamine derivative, and at least one substituted or unsubstituted boryl group, linked to at least one ring among the first to fourth rings, thereby showing long-life characteristics and excellent color reproducibility.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: August 6, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Tetsuji Hayano
  • Publication number: 20240114787
    Abstract: Embodiments provide a light emitting element which 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 polycyclic compound represented by Formula 1, which is explained in the specification.
    Type: Application
    Filed: July 5, 2023
    Publication date: April 4, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yuji SUZAKI, Tetsuji HAYANO, Yuma AOKI
  • Patent number: 11832506
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, an oppositely disposed second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one of the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 and has an improved emission efficiency and long device life span:
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: November 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tetsuji Hayano
  • Patent number: 11800786
    Abstract: An organic electroluminescence device of an embodiment 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, wherein the polycyclic compound includes a boron atom, a first aromatic ring and a second aromatic ring, which are each directly connected with the boron atom, an oxygen atom or a sulfur atom, which is directly connected with the boron atom, a third aromatic ring, which is directly connected with the oxygen atom or the sulfur atom, a first linker connecting the first aromatic ring and the second aromatic ring, and a second linker connecting the second aromatic ring and the third aromatic ring, thereby showing long-life characteristics and excellent color reproducibility.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: October 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tetsuji Hayano
  • Publication number: 20230225183
    Abstract: A light emitting element includes a polycyclic compound having a B-N-B structure and including a specific substituent in an emission layer, thereby showing high efficiency and long-life characteristics.
    Type: Application
    Filed: October 18, 2022
    Publication date: July 13, 2023
    Inventor: Tetsuji HAYANO
  • Publication number: 20220411443
    Abstract: A light emitting diode of one or more embodiments includes a first electrode, a second electrode opposite the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, the at least one functional layer including a polycyclic compound represented by Formula 1 below, wherein the first electrode and the second electrode each independently includes at least one selected from among Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF, Mo, Ti, W, In, Sn, Zn, compounds thereof, and mixtures thereof.
    Type: Application
    Filed: May 23, 2022
    Publication date: December 29, 2022
    Inventor: Tetsuji HAYANO
  • Publication number: 20220399500
    Abstract: A light emitting diode of one or more embodiments includes a first electrode, a second electrode opposite the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, the at least one functional layer including a polycyclic compound represented by Formula 1 below, wherein the first electrode and the second electrode each independently includes at least one selected from among Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF, Mo, Ti, W, In, Sn, Zn, compounds thereof, and mixtures thereof.
    Type: Application
    Filed: January 25, 2022
    Publication date: December 15, 2022
    Inventor: Tetsuji HAYANO
  • Publication number: 20220223790
    Abstract: Provided is an organic electroluminescence device including 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, and thus the organic electroluminescence device exhibits high luminous efficiency.
    Type: Application
    Filed: August 27, 2021
    Publication date: July 14, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yuji SUZAKI, Hirokazu KUWABARA, Keigo HOSHI, Ryuhei FURUE, Tetsuji HAYANO, Yuuki MIYAZAKI
  • Publication number: 20220223799
    Abstract: Provided is a light emitting device including 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 at least one polycyclic compound represented by Formula 1 below, and may thus exhibit long life characteristics.
    Type: Application
    Filed: August 2, 2021
    Publication date: July 14, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Keigo HOSHI, Tetsuji HAYANO, Yuuki MIYAZAKI
  • Publication number: 20210202861
    Abstract: An organic electroluminescence device 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: Application
    Filed: September 21, 2020
    Publication date: July 1, 2021
    Inventor: Tetsuji HAYANO
  • Publication number: 20210184123
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, an oppositely disposed second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one of the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 and has an improved emission efficiency and long device life span:
    Type: Application
    Filed: August 25, 2020
    Publication date: June 17, 2021
    Inventor: Tetsuji HAYANO
  • Publication number: 20210143332
    Abstract: An organic electroluminescence device of an embodiment 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, wherein the polycyclic compound includes a boron atom, a first aromatic ring and a second aromatic ring, which are each directly connected with the boron atom, an oxygen atom or a sulfur atom, which is directly connected with the boron atom, a third aromatic ring, which is directly connected with the oxygen atom or the sulfur atom, a first linker connecting the first aromatic ring and the second aromatic ring, and a second linker connecting the second aromatic ring and the third aromatic ring, thereby showing long-life characteristics and excellent color reproducibility.
    Type: Application
    Filed: August 20, 2020
    Publication date: May 13, 2021
    Inventor: Tetsuji HAYANO
  • Publication number: 20210111344
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the polycyclic compound includes a boranamine derivative, a first ring and a second ring, each directly linked to a boron atom of the boranamine derivative, a third ring and a fourth ring, each directly linked to a nitrogen atom of the boranamine derivative, and at least one substituted or unsubstituted boryl group, linked to at least one ring among the first to fourth rings, thereby showing long-life characteristics and excellent color reproducibility.
    Type: Application
    Filed: August 5, 2020
    Publication date: April 15, 2021
    Inventor: Tetsuji HAYANO
  • Publication number: 20200144503
    Abstract: An organic electroluminescence device includes a first and electrodes, sandwiching the following layers: 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. The emission layer includes a polycyclic compound represented by the following structure: wherein each of X1 to X10 is independently carbon or nitrogen, and each of R1 to R5 is independently a hydrogen atom, a deuterium atom, a substituted or unsubstituted amine group, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring. If all X1 to X10 are carbon, at least one of R4 and R5 is a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring.
    Type: Application
    Filed: September 18, 2019
    Publication date: May 7, 2020
    Inventor: Tetsuji HAYANO
  • Publication number: 20190296246
    Abstract: An organic EL material according to the present invention includes a compound represented by the general formula (I). In the formula (I), R1 and R2 are each independently a hydrogen atom or any substituent, and are preferably each independently a substituent selected from the group consisting of a hydrogen atom, a cyano group, a halogen-substituted alkyl group, a halogen, a pyridyl group optionally having a substituent, and an electron-donating aromatic group. A is a substituent in which at least one heteroaryl group optionally having a substituent, or at least one aryl amino group optionally having a substituent is bonded to a carbon atom at the 4-position of the pyridine ring directly or through other aromatic group.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 26, 2019
    Inventors: Tetsuji Hayano, Chihaya Adachi