Patents by Inventor Masaki Numata

Masaki Numata 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).

  • Patent number: 11895917
    Abstract: Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a ?-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: February 6, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Masaki Numata, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa
  • Patent number: 11706977
    Abstract: A heterocyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 18, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Satoshi Inayama, Shiro Irisa, Keisuke Korai, Rie Sakurai, Mitsunori Ito, Masaki Numata
  • Patent number: 11697645
    Abstract: A heterocyclic compound, a composition including the heterocyclic compound, and an organic light-emitting device including the heterocyclic compound are disclosed. The heterocyclic compound is represented by Formula 1: wherein, X1, L1, a1, Ar1, R1 to R6, b3, b4, and b5 are described herein.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: July 11, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masaki Numata, Mitsunori Ito, Norihito Ishii, Rie Sakurai
  • Publication number: 20230140682
    Abstract: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 4, 2023
    Inventors: Masaki NUMATA, Rie SAKURAI, Keisuke KORAI, Mitsunori ITO, Shiro IRISA, Norihito ISHII
  • Patent number: 11542252
    Abstract: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masaki Numata, Rie Sakurai, Keisuke Korai, Mitsunori Ito, Shiro Irisa, Norihito Ishii
  • Publication number: 20220407018
    Abstract: Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a ?-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.
    Type: Application
    Filed: June 11, 2021
    Publication date: December 22, 2022
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki KATO, Masaki NUMATA, Kazuki NISHIMURA, Toshihiro IWAKUMA, Chishio HOSOKAWA
  • Patent number: 11339143
    Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, A1, D1, and R11 to R14 are the same as described in the specification.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeonsook Chung, Soonok Jeon, Masaki Numata, Myungsun Sim, Hasup Lee, Sooghang Ihn
  • Patent number: 11233200
    Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, X11, X12, and R11 to R24 are the same as described in the specification.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: January 25, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Masaki Numata
  • Publication number: 20210408379
    Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer and satisfies Equations 1 and 2, ET1(HOST)?ET1(AD)>0.05 eV??Equation 1 ES1(FD)?ES1(AD)<0 eV,??Equation 2 wherein in Equation 1, ET1(HOST) is a triplet energy (eV) of the host, and ET1(AD) is a triplet energy (eV) of the auxiliary dopant, and wherein in Equation 2, ES1(FD) is a singlet energy (eV) of the fluorescent dopant, and ES1(AD) is a singlet energy (eV) of the auxiliary dopant, wherein the emission layer comprises a host, an auxiliary dopant, and a fluorescent dopant, and wherein the auxiliary dopant is selected from compounds represented by Formula 1: wherein in Formula 1, Ar1 and R11 to R16 are the same as described in the specification.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Masaki NUMATA, Hiroshi MIYAZAKI, Soonok JEON, Hosuk KANG, Sooghang IHN
  • Patent number: 11069862
    Abstract: Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a n-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: July 20, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Masaki Numata, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa
  • Patent number: 11043639
    Abstract: Provided are a charge transport material represented by Formula 1, a composition including the charge transport material, and an organic light-emitting device including the composition
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masaki Numata, Keisuke Korai, Mitsunori Ito
  • Publication number: 20210184132
    Abstract: Provided is a compound that has a long pot life of a solution and is able to achieve low driving voltage, high efficiency, and long lifespan of an organic electroluminescent device. The present disclosure relates to a compound having a triphenyl triazine structural moiety and including a group that has a structure in which a substituted or unsubstituted carbazole group and a predetermined number of carbazole rings are directly bonded via a single bond, as described in the specification.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 17, 2021
    Inventors: Keisuke KORAI, Atsushi IMAMURA, Jhunmo SON, Masaru KINOSHITA, Mitsunori ITO, Norifumi KISHI, Rie SAKURAI, Shiro IRISA, Masaki NUMATA
  • Patent number: 10988447
    Abstract: A condensed cyclic compound represented by Formula 1: Ar1-(L1)a1-B-(L2)a2-Ar2??Formula 1 wherein, in Formula 1, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 27, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Sik Chae, Kyungdoc Kim, Sae Youn Lee, Soonok Jeon, Hiroshi Miyazaki, Masaki Numata, Youngmin Nam, Tae-Rae Kim, In Koo Kim, Won-Joon Son, Won Seok Oh, Younsuk Choi, Sunghan Kim, Jeong-Ju Cho
  • Patent number: 10957863
    Abstract: A condensed cyclic compound represented by Formula 1: wherein D1 in Formula 1 is a group represented by Formula 1-1, A1 in Formula 1 is a group represented by Formula 1-2, 1-3, or 1-4, wherein in Formulae 1-1, 1-2, 1-3, and 1-4, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Saeyoun Lee, Masaki Numata, Hiroshi Miyazaki, Myungsun Sim, Hasup Lee, Sooghang Ihn
  • Patent number: 10934248
    Abstract: A compound represented by the general formula (11) is useful as a light-emitting material. R1, R2, R4 and R5 represent a group represented by the general formula (2), R11 to R20 represent a hydrogen atom or a substituent, and L12 represents a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 2, 2021
    Assignee: KYULUX, INC.
    Inventors: Chihaya Adachi, Takuma Yasuda, Ryosuke Kondo, Masaki Numata, Jun-Yun Kim, Inseob Park
  • Patent number: 10873034
    Abstract: A condensed cyclic compound represented by Formula 1: Ar1-(L1)a1-Ar2??Formula 1 wherein, in Formula 1, Ar1, Ar2, L1, and a1 are the same as described in the specification.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: December 22, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Saeyoun Lee, Masaki Numata, Hiroshi Miyazaki, Soonok Jeon, Hosuk Kang, Sooghang Ihn, Miyoung Chae
  • Publication number: 20200243773
    Abstract: An organic light-emitting device including a first electrode; a second electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, and wherein the organic layer comprises a first compound represented by Formula 1 and a second compound having the lowest excited triplet energy level greater than 2.73 electron volts: wherein in Formula 1, R11 to R33 are the same as described in the specification.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Inventors: Hyun Sik CHAE, Soonok JEON, Hosuk KANG, Hiroshi MIYAZAKI, Sooghang IHN, Seongik HONG, Masaki NUMATA, Sunghan KIM, Rafael GOMEZ-BOMBARELLI, Martin B.Z. FORSYTHE, Jorge AGUILERA-IPARRAGUIRRE, Alan ASPURU-GUZIK, Timothy D. HIRZEL
  • Publication number: 20200212314
    Abstract: An organic light-emitting device comprising: a first electrode; a second electrode; and an emission layer between the first electrode and the second electrode, wherein the emission layer comprising a first compound, a second compound, and a third compound, the first compound comprising at least one compound represented by one of Formulae 1-1 to 1-4, the second compound comprising at least one compound represented by one of Formulae 2-1 to 2-4, and the third compound includes at least one of a triphenylene group, a dibenzofuran group, a dibenzothiophene group, a fluorene group, a biscarbazole group, or any combination thereof, wherein a band gap between a highest occupied molecular orbital (HOMO) band energy level and a lowest unoccupied molecular orbital (LUMO) band energy level of the third compound is 3.3 eV or more. Formulae 1-1 to 1-4 and Formulae 2-1 to 2-4 are described herein.
    Type: Application
    Filed: December 24, 2019
    Publication date: July 2, 2020
    Inventors: Masaki NUMATA, Masaru KINOSHITA, Mitsunori ITO, Wataru SOTOYAMA
  • Publication number: 20200207732
    Abstract: A heterocyclic compound, a composition including the heterocyclic compound, and an organic light-emitting device including the heterocyclic compound are disclosed. The heterocyclic compound is represented by Formula 1: wherein, X1, L1, a1, Ar1, R1 to R6, b3, b4, and b5 are described herein.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Inventors: Masaki NUMATA, Mitsunori ITO, Norihito ISHII, Rie SAKURAI
  • Publication number: 20200207739
    Abstract: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Inventors: Masaki NUMATA, Rie SAKURAI, Keisuke KORAI, Mitsunori ITO, Shiro IRISA, Norihito ISHII