Patents by Inventor Taro YAMAKI

Taro YAMAKI 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: 20240224791
    Abstract: An organic electroluminescence device includes: an anode; a cathode; and an emitting layer provided between the anode and the cathode, in which the emitting layer includes a first emitting layer and a second emitting layer, and the first emitting layer contains, as a first host material, a first compound represented by a formula (1) below, in the formula (1): a cyclic structure A and a cyclic structure B are each independently, for instance, a cyclic structure selected from the group consisting of a substituted or unsubstituted aryl ring having 6 to 50 ring carbon atoms, and a substituted or unsubstituted heterocycle having 5 to 50 ring atoms; X1 is, for instance, an oxygen atom, a sulfur atom, NR71, and C(R72)(R73); and Y1 is, for instance, a sulfur atom, NR71A, or C(R72A)(R73A).
    Type: Application
    Filed: March 10, 2022
    Publication date: July 4, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Satomi TASAKI, Kazuki NISHIMURA, Ryota TAKAHASHI, Taro YAMAKI, Yu KUDO
  • Patent number: 11997920
    Abstract: An organic electroluminescence device includes: an anode; a cathode; a first emitting unit including a first emitting layer and a first hole transporting zone; a first charge generating layer; and a second emitting unit including a second emitting layer, in which the first emitting unit, the first charge generating layer, and the second emitting unit are provided between the anode and the cathode in this order from the anode, the first hole transporting zone is provided between the anode and the first emitting layer, the first emitting layer contains a compound represented by a formula (1) below, and a thickness d1 of the first hole transporting zone is 60 nm or less. In the formula (1): at least one of R1 to R8 is -L13-Ar13; L11 to L13 are each independently a single bond, an arylene group or the like; and R1 to R8 not being -L13-Ar13 are each independently a hydrogen atom or the like.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: May 28, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masato Nakamura, Taro Yamaki, Ryota Takahashi
  • Publication number: 20240166592
    Abstract: A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: wherein R1 to R6, a to f, L1 to L3, and Ar are as defined in the description.
    Type: Application
    Filed: December 19, 2023
    Publication date: May 23, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tomoki KATO, Taro YAMAKI, Masahiro KAWAMURA, Hirokatsu ITO
  • Patent number: 11939279
    Abstract: A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: wherein R1 to R6, a to f, L1 to L3, and Ar are as defined in the description.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: March 26, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Taro Yamaki, Masahiro Kawamura, Hirokatsu Ito
  • Publication number: 20240090329
    Abstract: A compound includes: at least one group represented by a formula (11) below; and a single benz[de]anthracene derivative skeleton represented by a formula (1000) below in a molecule, in which Ar1 is a substituted or unsubstituted aryl group including at least four rings, at least one of R10 to R19 is a group represented by the formula (11), L1 is a substituted or unsubstituted arylene group having 6 to 15 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 15 ring atoms, and mx is 1, 2, or 3.
    Type: Application
    Filed: October 1, 2021
    Publication date: March 14, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yuki NAKANO, Taro YAMAKI, Maiko IIDA, Takamoto MORITA, Shintaro BAN, Ryota TAKAHASHI, Yu KUDO, Yoshinao SHIRASAKI
  • Publication number: 20240030486
    Abstract: Provided is a method for producing a sulfide solid electrolyte having excellent productivity and having a particularly small particle size, including mixing a raw material inclusion containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom to obtain an electrolyte precursor, and heating the electrolyte precursor in the presence of a solvent and a dispersant having 8 or more carbon atoms in a molecule thereof in a sealed pressure resistant vessel.
    Type: Application
    Filed: May 26, 2023
    Publication date: January 25, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: TARO YAMAKI, Yoshikatsu SEINO, Shota TOTSUKA, Manabu TANAKA, Hironari KIMPARA
  • Publication number: 20240023436
    Abstract: There is provided an organic electroluminescence device including: an anode; a cathode; a first emitting layer provided between the anode and the cathode and containing a first compound; and a second emitting layer provided between the first emitting layer and the cathode and containing a second compound, in which at least one of the first emitting layer or the second emitting layer contains a compound having at least one deuterium atom, at least one of the first emitting layer or the second emitting layer contains a compound having a fused ring that includes four or more rings, and the first emitting layer and the second emitting layer are in direct contact with each other.
    Type: Application
    Filed: March 11, 2021
    Publication date: January 18, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Hiroaki ITOI, Taro YAMAKI, Maiko IIDA, Kazuki NISHIMURA, Yuki NAKANO
  • Publication number: 20240008363
    Abstract: A compound represented by the following formula (1).
    Type: Application
    Filed: November 17, 2021
    Publication date: January 4, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Taro YAMAKI, Maiko IIDA, Shintaro BAN, Takamoto MORITA, Yu KUDO
  • Publication number: 20230345816
    Abstract: A compound represented by the formula (12X). In the formula (12X), Py1 and Py2 each independently represent a substituted or unsubstituted 1-pyrenyl group, L1 and L2 each independently represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group. When L1 and L2 each independently represent a substituted or unsubstituted phenylene group, -L1-L2- in the formula (12X) represents a group represented by one of the formulae (13-1) to (13-6), (10-1), (20-1), and (30-1). When L1 and L2 each independently represent a substituted or unsubstituted naphthylene group, a bonding position of the naphthylene group in L1 is different from a bonding position of the naphthylene group in L2.
    Type: Application
    Filed: November 26, 2020
    Publication date: October 26, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Hiroaki ITOI, Takamoto MORITA, Tomoki KATO, Nozomi TAJIMA, Satomi TASAKI, Kazuki NISHIMURA
  • Publication number: 20230085328
    Abstract: A compound represented by the following formula (1A) or (1B): (the symbols in the formulae (1A) and (1B) have the same meaning as defined in the specification), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.
    Type: Application
    Filed: July 7, 2022
    Publication date: March 16, 2023
    Applicants: IDEMITSU KOSAN CO.,LTD., National University Corporation Tokai National Higher Education and Research System
    Inventors: Masato MITANI, Keita SEDA, Taro YAMAKI, Shota TANAKA, Tsukasa SAWATO, Masatoshi SAITO, Hiroaki ITOI, Tasuku HAKETA, Kei YOSHIDA, Sayaka MIZUTANI, Kenichiro ITAMI, Kei MURAKAMI, Satoshi MATSUBARA, Yoshito KOGA
  • Patent number: 11600780
    Abstract: An organic electroluminescence device including: an anode, a cathode, and at least one emitting layer between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, the first host material is a compound having at least one deuterium atom, and the emitting layer contains the first host material in the proportion of 1% by mass or more.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: March 7, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Satomi Tasaki, Taro Yamaki, Hiroaki Itoi, Yuki Nakano, Yuichiro Kawamura
  • Publication number: 20230047477
    Abstract: An organic electroluminescence device comprising: an anode, a cathode, and an emitting region between the anode and the cathode, wherein the emitting region comprises a first emitting layer and a second emitting layer, the first emitting layer and the second emitting layer are directly adjacent to each other, the first emitting layer is between the anode and the second emitting layer, and one of the first emitting layer and the second emitting layer comprises a compound having at least one deuterium atom.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 16, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Taro YAMAKI, Hiroaki ITOI, Yuki NAKANO, Yuichiro KAWAMURA, Ryoji MAEDA, Kazuki NISHIMURA, Yongguk LEE
  • Publication number: 20230042023
    Abstract: An organic electroluminescence device including: an anode, a cathode, and at least one emitting layer between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, the first host material is a compound having at least one deuterium atom, and the emitting layer contains the first host material in the proportion of 1% by mass or more.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 9, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Taro YAMAKI, Hiroaki ITOI, Yuki NAKANO, Yuichiro KAWAMURA
  • Publication number: 20230020436
    Abstract: A compound represented by the following formula (1) (In the formula (1), at least one of R1 to R8 is a deuterium atom; Ar2 is a monovalent group represented by the following formula (2), (3) or (4)).
    Type: Application
    Filed: October 9, 2019
    Publication date: January 19, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • Publication number: 20230019712
    Abstract: An organic electroluminescence device including a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer includes a compound represented by the following formula (1) and one or more compounds selected from the group consisting of compounds represented by each of formulas (11), (21), (31), (41), (51), (61), (71) and (81). In the formula (1), at least one of R1 to R8 is a deuterium atom, and Ar2 is a monovalent group represented by following formula (2), (3) or (4).
    Type: Application
    Filed: October 9, 2019
    Publication date: January 19, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • Publication number: 20230011996
    Abstract: An organic electroluminescence device inducting a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer includes a compound represented by the following formula (1) and one or more compounds selected from the group consisting of compounds represented by each of formulas (11), (21), (31), (41), (51), (61), (71) and (81).
    Type: Application
    Filed: October 9, 2019
    Publication date: January 12, 2023
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • Patent number: 11552252
    Abstract: An organic electroluminescence device including: an anode, a cathode, and at least one emitting layer between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, the first host material is a compound having at least one deuterium atom, and the emitting layer contains the first host material in the proportion of 1% by mass or more.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: January 10, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Satomi Tasaki, Taro Yamaki, Hiroaki Itoi, Yuki Nakano, Yuichiro Kawamura
  • Publication number: 20220411437
    Abstract: A compound having structures represented by the following formulas (1) or (2): wherein in the formulas (1) and (2), at least one of R1 to R8 is a deuterium atom.
    Type: Application
    Filed: October 9, 2019
    Publication date: December 29, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • Patent number: 11527720
    Abstract: An organic electroluminescence device includes an emitting region provided between an anode and a cathode, in which the emitting region includes a first emitting layer and a second emitting layer, a ratio DEM1/DEM2 of a film thickness of the first emitting layer DEM1 to a film thickness of the second emitting layer DEM2 is in a range from 2/3 to 3/2, the first emitting layer contains a first host material and a first emitting compound, the second emitting layer contains a second host material and a second emitting compound, and the first host material has a group represented by a formula (10) below and is a compound represented by a formula (1) below.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: December 13, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu Kudo, Hiroaki Itoi, Shintaro Ban, Taro Yamaki, Takamoto Morita
  • Patent number: 11482675
    Abstract: An organic electroluminescence device comprising: an anode, a cathode, and an emitting region between the anode and the cathode, wherein the emitting region comprises a first emitting layer and a second emitting layer, the first emitting layer and the second emitting layer are directly adjacent to each other, the first emitting layer is between the anode and the second emitting layer, and one of the first emitting layer and the second emitting layer comprises a compound having at least one deuterium atom.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: October 25, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Satomi Tasaki, Taro Yamaki, Hiroaki Itoi, Yuki Nakano, Yuichiro Kawamura, Ryoji Maeda, Kazuki Nishimura, Yongguk Lee