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: 20220289726
    Abstract: A compound represented by the following formula (1), wherein in the formula, L1 and L2 are predetermined linking groups, and Ar1 is a monovalent group having a structure represented by the following formula (2).
    Type: Application
    Filed: August 7, 2020
    Publication date: September 15, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yuki NAKANO, Satomi TASAKI, Taro YAMAKI
  • Publication number: 20220285625
    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: May 5, 2022
    Publication date: September 8, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Taro YAMAKI, Hiroaki ITOI, Yuki NAKANO, Yuichiro KAWAMURA, Ryoji MAEDA, Kazuki NISHIMURA, Yongguk LEE
  • Publication number: 20220173335
    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 contains one or both of the compound represented by the following formula (1A) and the compound represented by the following formula (1B) and a compound represented by any one of the specific formulas (11), (21), (31), (41), (51), (61), (71), and (81).
    Type: Application
    Filed: April 8, 2020
    Publication date: June 2, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yuki NAKANO, Satomi TASAKI, Taro YAMAKI, Tetsuya MASUDA
  • Publication number: 20220169656
    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: February 10, 2022
    Publication date: June 2, 2022
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuki NAKANO, Taro Yamaki, Satomi Tasaki, Tomoki Kato
  • Publication number: 20220173334
    Abstract: An organic electroluminescence device including: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises an emitting layer and a first layer, the first layer is disposed between the cathode and the emitting layer, the emitting layer comprises one or both of a compound represented by the following formula (1A) and a compound represented by the following formula (1B), and the first layer comprises a compound represented by the following formula (BE1):
    Type: Application
    Filed: April 8, 2020
    Publication date: June 2, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yuki NAKANO, Satomi TASAKI, Taro YAMAKI, Tetsuya MASUDA
  • Publication number: 20220165964
    Abstract: An organic electroluminescence device comprising: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises an emitting layer and a first layer, the first layer is disposed between the cathode and the emitting layer, the emitting layer comprises a compound represented by the following formula (1), and the first layer comprises a compound represented by the following formula (BE1):
    Type: Application
    Filed: April 8, 2020
    Publication date: May 26, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yuki NAKANO, Satomi TASAKI, Taro YAMAKI, Tetsuya MASUDA
  • Publication number: 20220165965
    Abstract: An organic electroluminescence device containing a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains a compound represented by the following formula (1) and one or more compounds selected from the group consisting of a compound represented by the specific formulas (11), (21), (31), (41), (51), (61), (71), and (81).
    Type: Application
    Filed: April 8, 2020
    Publication date: May 26, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yuki NAKANO, Satomi TASAKI, Taro YAMAKI, Tetsuya MASUDA
  • Patent number: 11283025
    Abstract: A compound represented by formula (1): wherein R1 to R5, a to e, L1 to L3, Ar, and X are as defined in the description.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: March 22, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Taro Yamaki, Tomoki Kato, Masahiro Kawamura, Hirokatsu Ito
  • Publication number: 20220029099
    Abstract: A compound represented by the following formula (1), provided that at least one of R1 to R8 is a deuterium atom; and at least one of Ar1 and Ar2 is a substituted or unsubstituted fused aryl group in which only four or more benzene rings are fused.
    Type: Application
    Filed: November 8, 2019
    Publication date: January 27, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Taro YAMAKI, Satomi TASAKI, Hiroaki ITOI, Yuki NAKANO
  • Publication number: 20210384430
    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 contains a compound represented by the following formula (1) and one or more compounds selected from the group consisting of a compound represented by formula (11), a compound represented by formula (21), a compound represented by formula (31), a compound represented by formula (41), a compound represented by formula (51), a compound represented by formula (61), a compound represented by formula (71) and a compound represented by formula (81). In the formula (1), at least one of R1 to R8 is a deuterium atom.
    Type: Application
    Filed: October 3, 2019
    Publication date: December 9, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO, Keita SEDA, Ryota TAKAHASHI
  • Publication number: 20210363096
    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: August 10, 2021
    Publication date: November 25, 2021
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki KATO, Taro YAMAKI, Masahiro KAWAMURA, Hirokatsu ITO
  • Publication number: 20210336149
    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: Application
    Filed: December 23, 2020
    Publication date: October 28, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Masato NAKAMURA, Taro YAMAKI, Ryota TAKAHASHI
  • Publication number: 20210336154
    Abstract: An organic electroluminescence device, comprising: 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 a compound represented by the following formula (11), provided that at least one of Ar101 and Ar102 is a monovalent group represented by the following formula (12).
    Type: Application
    Filed: August 14, 2019
    Publication date: October 28, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI
  • Publication number: 20210320251
    Abstract: An organic electroluminescence device, comprising: a cathode; an anode; and an emitting layer disposed between the cathode and the anode, wherein the emitting layer comprises: a compound represented by the following formula (1) and a compound represented by the following formula (11) (at least one of Ar101 and Ar102 is a monovalent group represented by the formula (12)).
    Type: Application
    Filed: August 2, 2019
    Publication date: October 14, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tetsuya MASUDA
  • Patent number: 11117857
    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 1, 2016
    Date of Patent: September 14, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Taro Yamaki, Masahiro Kawamura, Hirokatsu Ito
  • Publication number: 20210028365
    Abstract: An organic electroluminescence device comprising: a cathode; an anode; and an organic layer between the cathode and the anode, wherein the organic layer comprises a compound represented by the following formula (1) and a compound represented by the following formula (11).
    Type: Application
    Filed: April 4, 2019
    Publication date: January 28, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Yuki NAKANO, Taro YAMAKI, Hiroaki ITOI, Yuichiro KAWAMURA, Masatoshi SAITO
  • Publication number: 20200365808
    Abstract: An organic electroluminescence device, comprising: a cathode; an anode; and at least one organic layer disposed between the cathode and the anode, wherein the emitting layer comprises a compound represented by the following formula (1) and a compound represented by the following formula (A1).
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • Patent number: 10811612
    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 contains a compound represented by the following formula (1) and one or more compounds selected from the group consisting of compounds represented by 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.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 20, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuki Nakano, Taro Yamaki, Satomi Tasaki, Tomoki Kato, Keita Seda, Ryota Takahashi
  • Patent number: 10804474
    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 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.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: October 13, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuki Nakano, Taro Yamaki, Satomi Tasaki, Tomoki Kato
  • Patent number: 10777752
    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 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: Grant
    Filed: August 30, 2019
    Date of Patent: September 15, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuki Nakano, Taro Yamaki, Satomi Tasaki, Tomoki Kato