Patents by Inventor Tasuku Haketa

Tasuku Haketa 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: 10790449
    Abstract: Provided are an organic EL device having a high emission efficiency, a material for organic EL devices, which is capable of realizing the same, and the like. More specifically, provided are a compound represented by the following formula (1), a material for organic electroluminescence devices, which contains the compound, an organic electroluminescence device using the compound, and an electronic equipment provided with the organic electroluminescence device: wherein Ar represents a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms, or a group formed by a combination of these groups, and W to R9 each independently represent a hydrogen atom or a substituent, provided that any pair of R2 and R3, R3 and R4, R4 and R5, R6 and R7, R7 and R8, and R8 and R9 are optionally bonded to each other to form a benzene ring.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: September 29, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Masahiro Kawamura, Yumiko Mizuki, Yoichi Ikeda
  • Patent number: 10784446
    Abstract: A compound is represented by a formula (100) below, where X1, X2 and X3 are each independently a nitrogen atom or a carbon atom bonded with R2, Y is an oxygen atom, a sulfur atom and the like, R1, R2, R11, R21 and R22 are each a hydrogen atom or a substituent, L1 is a single bond or a linking group, and L2 is a linking group.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: September 22, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoharu Hayama, Tetsuya Masuda, Masahiro Kawamura, Hirokatsu Ito, Tasuku Haketa, Yumiko Mizuki
  • Publication number: 20200290985
    Abstract: A compound represented by formula (A): wherein Ar, R1 to R7, R11 to R14, R21 to R24, R31 to R34, *1, and R41 to R48 are as defined in the description provides organic electroluminescence devices with improved device performance.
    Type: Application
    Filed: May 1, 2020
    Publication date: September 17, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu KUDO, Tasuku Haketa, Hirokatsu Ito
  • Patent number: 10703762
    Abstract: A compound represented by the following formula (1):
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: July 7, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu Kudo, Yumiko Mizuki, Masahiro Kawamura, Tomoki Kato, Hirokatsu Ito, Tasuku Haketa, Yuichi Nishimae, Annemarie Wolleb
  • Patent number: 10629821
    Abstract: The present invention provides a material useful as an organic electroluminescence device material, and particularly provides: a compound having, as a substituent, a substituted aromatic heterocyclic group having a specific structure wherein any of the 1-position to 6-position or the 7-position to 10-position of fluoranthene is substituted with a nitrogen atom; a material for low-voltage organic electroluminescence devices using the compound; and an organic electroluminescence device and an electronic equipment using the material.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: April 21, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Masahiro Kawamura, Yumiko Mizuki, Yoichi Ikeda
  • Patent number: 10622569
    Abstract: The present invention provides a compound having a fluoranthene skeleton represented by the formula (1); an organic electroluminescence device having plural organic thin film layers including a light-emitting layer between a cathode and an anode, wherein at least one layer of the organic thin film layers contains the compound; and an electronic equipment provided with the organic electroluminescence device. The organic electroluminescence device realizes further lower voltage driving and has high emission efficiency. [In the formula (1), X1 to X10, L, R1 to R9, and n are as stated in the description.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: April 14, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Masahiro Kawamura, Yumiko Mizuki, Hirokatsu Ito, Tomoharu Hayama
  • Patent number: 10547007
    Abstract: A compound represented by formula (1): wherein Ar is a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted nitrogen-comprising heteroaryl group having 5 to 30 ring atoms; each of L1 and L2 is independently a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a substituted or unsubstituted divalent linking group wherein 2 to 4 groups selected from an arylene group having 6 to 30 ring carbon atoms and a heteroarylene group having 5 to 30 ring atoms are bonded to each other via a single bond; A is a monovalent group represented by formula (2); and B is a monovalent group represented by formula (5): wherein R1 to R10 and R21 to R30 are as defined in the description, enables the emission of light of a purer blue (shorter wavelength), a narrower half width (hig
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: January 28, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Hirokatsu Ito, Yu Kudo, Masahiro Kawamura, Ryota Takahashi
  • Publication number: 20200024263
    Abstract: A novel compound represented by formula (1): wherein R1 to R7, R11 to R18, L1 to L3, a to c, n, and Ar are as defined in the description, provides an organic electroluminescence device having a device lifetime further improved.
    Type: Application
    Filed: March 8, 2018
    Publication date: January 23, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu ITO, Tasuku HAKETA, Yu KUDO
  • Patent number: 10435350
    Abstract: A compound is represented by the following formula (1). In the formula (1), Ar is a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms, Ra are independently a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or a substituted or unsubstituted cycloalkyl group including 3 to 15 carbon atoms, Rb1 to Rb4 are independently a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, Rc1 to Rc10 are independently a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, * is a bonding position at which one of Rc1 to Rc10 is bonded to either nitrogen atom, x is an integer from 0 to 3, y is an integer from 0 to 4, and z are independently an integer from 0 to 5.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 8, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Masahiro Kawamura, Yumiko Mizuki, Tasuku Haketa, Tomoharu Hayama, Ryota Takahashi
  • Patent number: 10424740
    Abstract: A compound represented by formula (1) provides an organic electroluminescence device having a low driving voltage and an excellent emission efficiency: wherein R1 to R8, R11 to R18, R21 to R28, R31 to R38, X, Y, L1, L2, L3, and Ar are as defined in the description.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: September 24, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Hirokatsu Ito, Yu Kudo
  • Patent number: 10396288
    Abstract: An organic EL device with high emission efficiency, an electronic equipment including the organic EL device, and a compound providing the organic EL device are provided.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: August 27, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Masahiro Kawamura, Yumiko Mizuki, Tasuku Haketa, Tomoharu Hayama
  • Publication number: 20190161497
    Abstract: Specifically substituted benzofuro- and benzothienoquinolines and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the specifically substituted benzofuro- and benzothienoquinolines may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.
    Type: Application
    Filed: June 13, 2017
    Publication date: May 30, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuichi NISHIMAE, Michelle GROARKE, Heinz WOLLEB, Annemarie WOLLEB, Yuki NAKANO, Hideaki NAGASHIMA, Tasuku HAKETA, Masahiro KAWAMURA, Takushi SHIOMI
  • Patent number: 10297757
    Abstract: An organic electroluminescence device having higher performance, in particular exhibiting a better driving voltage and a better external quantum efficiency, while having an extended lifetime; and an electronic equipment provided with the organic electroluminescence device are provided. In addition, a compound for realizing the same device and equipment is provided. Specifically, a compound having a specific structure having a triphenylene skeleton; an organic electroluminescence device using the compound; and an electronic equipment provided with the organic electroluminescence device were provided.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 21, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Yumiko Mizuki, Hirokatsu Ito, Tomoharu Hayama, Tasuku Haketa
  • Publication number: 20190088879
    Abstract: A compound represented by formula (1) provides an organic electroluminescence device having a low driving voltage and an excellent emission efficiency: wherein R1 to R8, R11 to R18, R21 to R28, R31 to R38, X, Y, L1, L2, L3, and Ar are as defined in the description.
    Type: Application
    Filed: October 31, 2018
    Publication date: March 21, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Hirokatsu ITO, Yu KUDO
  • Patent number: 10217954
    Abstract: A compound of the invention is represented by a formula (1) below. In the formula (1), Cz is represented by a formula (1a) below and Az is represented by a formula (11) below.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: February 26, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoharu Hayama, Masahiro Kawamura, Yumiko Mizuki, Hirokatsu Ito, Tasuku Haketa
  • Patent number: 10211404
    Abstract: A high-performance organic electroluminescence device and an electronic equipment provided with the organic electroluminescence device are provided. Also, a compound for achieving the organic electroluminescence device and the electronic equipment is provided. Specifically, a compound having a specific structure having a triphenylene skeleton, an organic electroluminescence device using the compound and an electronic equipment provided with the organic electroluminescence device are provided.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: February 19, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Yumiko Mizuki, Hirokatsu Ito, Tomoharu Hayama, Tasuku Haketa
  • Patent number: 10205099
    Abstract: A fused fluoranthene compound including a specific ring structure at a specific position of a fluoranthene skeleton is a novel material useful as a material for organic electroluminescence devices.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: February 12, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Yumiko Mizuki, Hirokatsu Ito, Tomoharu Hayama, Tasuku Haketa
  • Publication number: 20190023648
    Abstract: A compound is represented by the following formula (1). In the formula (1), Ar is a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms, Ra are independently a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or a substituted or unsubstituted cycloalkyl group including 3 to 15 carbon atoms, Rb1 to Rb4 are independently a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, Rc1 to Rc10 are independently a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, * is a bonding position at which one of Rc1 to Rc10 is bonded to either nitrogen atom, x is an integer from 0 to 3, y is an integer from 0 to 4, and z are independently an integer from 0 to 5.
    Type: Application
    Filed: September 25, 2018
    Publication date: January 24, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu ITO, Masahiro KAWAMURA, Yumiko MIZUKI, Tasuku HAKETA, Tomoharu HAYAMA, Ryota TAKAHASHI
  • Patent number: 10170707
    Abstract: A compound represented by formula (1): wherein R1 to R6, R7 to R10, R11 to R14, R15 to R18, L1, L2, Ar1, and Ar2 are as defined in the description realizes an organic electroluminescence device with long lifetime.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: January 1, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Masahiro Kawamura
  • Publication number: 20180370981
    Abstract: The present invention relates to compounds of the general formula (I) and to a process for their preparation, to an electronic device comprising at least one of these compounds, to an emitting layer, preferably present in an electronic device, comprising at least one compound of general formula (I) and to the use of a compound according to general formula (I) in an electronic device as a host material and/or charge transporting material.
    Type: Application
    Filed: December 21, 2016
    Publication date: December 27, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuichi NISHIMAE, Yuki NAKANO, Hideaki NAGASHIMA, Masahiro KAWAMURA, Tasuku HAKETA, Annemarie WOLLEB