Patents by Inventor Yukitoshi Jinde

Yukitoshi Jinde 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: 20240188438
    Abstract: An organic electroluminescence device may include an anode, a cathode, and an emitting layer provided between the anode and the cathode, in which the emitting layer contains a delayed fluorescent compound M2 and a compound M3 of formula (1) wherein A is a group of formula (11A), (11B)) (11C), (11D), (11E), and/or (11F) and Y1 is O or S. The compound M3 and the compound M2 may be different in structure.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 6, 2024
    Applicants: IDEMITSU KOSAN CO.,LTD., TORAY INDUSTRIES, INC.
    Inventors: Takushi SHIOMI, Hisato MATSUMOTO, Yukitoshi JINDE, Yuta HIGASHINO, Toshinari OGIWARA, Hidetaka HOSHINO, Kazumasa NAGAO
  • Publication number: 20240114780
    Abstract: An emitting layer of an organic EL device contains a fluorescent first compound, a delayed fluorescent second compound, and a third compound that satisfy numerical formulae (Numerical Formula 1) to (Numerical Formula 4). (Numerical Formula 1): |Af(M1)?Af(M2)|?0.40 eV, (Numerical Formula 2): Ip(M2)?5.75 eV, (Numerical Formula 3): |Ip(M2)?Ip(M3)|?0.25 eV, (Numerical Formula 4): S1(M3)?S1(M2). Af(M1) is an affinity of the first compound, Af(M2) is an affinity of the second compound, Ip(M2) is an ionization potential of the second compound, S1(M2) is a lowest singlet energy of the second compound, Ip(M3) is an ionization potential of the third compound, and S1(M3) is a lowest singlet energy of the third compound.
    Type: Application
    Filed: June 1, 2023
    Publication date: April 4, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yukitoshi JINDE, Hisato MATSUMOTO, Keiichi YASUKAWA
  • Publication number: 20230422608
    Abstract: An organic electroluminescence device includes an emitting layer between an anode and a cathode, and a first layer between the anode and the emitting layer, in which the emitting layer contains a delayed fluorescent compound M1 represented by a formula (1), the first layer contains a compound M4 represented by a formula (4), and the compound M4 satisfies formulae (a) and (b), ?H(M4)?1.0×10?3 cm2/Vs??Formula (a): S1(M4)?3.15 eV??Formula (b): where: ?H(M4) represents hole mobility of the compound M4; and S1(M4) represents a lowest singlet energy of the compound M4.
    Type: Application
    Filed: March 30, 2023
    Publication date: December 28, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hisato MATSUMOTO, Yukitoshi JINDE, Takushi SHIOMI
  • Publication number: 20220223798
    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 contains a delayed fluorescent compound M2 represented by a formula (2) and a compound M3 represented by a formula (3), and a singlet energy Si(M2) of the compound M2 and a singlet energy Si(M3) of the compound M3 satisfy a relationship of a numerical formula (Numerical Formula 1).
    Type: Application
    Filed: December 16, 2021
    Publication date: July 14, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Takushi SHIOMI, Hisato MATSUMOTO, Yukitoshi JINDE, Kengo KISHINO, Kazuki TERADA, Keiichi YASUKAWA, Toshinari OGIWARA
  • Publication number: 20180208836
    Abstract: An organic electroluminescence device includes a cathode, an anode, a charge generating layer provided between the cathode and the anode, a first emitting unit provided between the charge generating layer and the cathode, and a second emitting unit provided between the charge generating layer and the anode. The first emitting unit includes a blue emitting layer containing a first compound represented by a formula and a second compound emitting a blue light, in which Z1 is represented by a formula and a cyclic structure represented by a formula or is fused to Z1, and X1 and X2 are each an oxygen atom or a sulfur atom.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 26, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hitoshi KUMA, Yukitoshi JINDE
  • Patent number: 9899620
    Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer interposed therebetween. The organic compound layer includes a plurality of emitting layers at least including a first emitting layer and a second emitting layer. The first emitting layer contains a first host material and a fluorescent first luminescent material. The second emitting layer contains a second luminescent material that is different from the first luminescent material. A difference ?ST(H1) between singlet energy EgS(H1) of the first host material and an energy gap Eg77K(H1) at 77[K] of the first host material satisfies a specific relationship. One of the first luminescent material and the second luminescent material has a main peak wavelength from 400 nm to less than 500 nm and the other of the first luminescent material and the second luminescent material has a main peak wavelength from 500 nm to 700 nm.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: February 20, 2018
    Assignee: IDEMITSU KOSAN CO. LTD.
    Inventors: Toshinari Ogiwara, Yukitoshi Jinde
  • Patent number: 9812661
    Abstract: An organic electroluminescence device including at least an anode, an emitting layer, an electron-transporting region and a cathode in sequential order, wherein the emitting layer contains a host and a dopant which gives fluorescent emission of which the main peak wavelength is 550 nm or less; the affinity Ad of the dopant is equal to or larger than the affinity Ah of the host; the triplet energy ETd of the dopant is larger than the triplet energy ETh of the host; and a blocking layer is provided within the electron-transporting region such that it is adjacent to the emitting layer, and the triplet energy ETb of the blocking layer is larger than ETh.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: November 7, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
  • Publication number: 20170162817
    Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer interposed therebetween. The organic compound layer includes a plurality of emitting layers at least including a first emitting layer and a second emitting layer. The first emitting layer contains a first host material and a fluorescent first luminescent material. The second emitting layer contains a second luminescent material that is different from the first luminescent material. A difference ?ST(H1) between singlet energy EgS(H1) of the first host material and an energy gap Eg77K(H1) at 77[K] of the first host material satisfies a specific relationship. One of the first luminescent material and the second luminescent material has a main peak wavelength from 400 nm to less than 500 nm and the other of the first luminescent material and the second luminescent material has a main peak wavelength from 500 nm to 700 nm.
    Type: Application
    Filed: February 22, 2017
    Publication date: June 8, 2017
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Toshinari OGIWARA, Yukitoshi JINDE
  • Patent number: 9614170
    Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer interposed therebetween. The organic compound layer includes a plurality of emitting layers at least including a first emitting layer and a second emitting layer. The first emitting layer contains a first host material and a fluorescent first luminescent material. The second emitting layer contains a second luminescent material that is different from the first luminescent material. A difference ?ST(H1) between singlet energy EgS(H1) of the first host material and an energy gap Eg77K(H1) at 77[K] of the first host material satisfies a specific relationship. One of the first luminescent material and the second luminescent material has a main peak wavelength from 400 nm to less than 500 nm and the other of the first luminescent material and the second luminescent material has a main peak wavelength from 500 nm to 700 nm.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 4, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Toshinari Ogiwara, Yukitoshi Jinde
  • Publication number: 20160254459
    Abstract: An organic electroluminescence device that includes an anode, an emitting layer that includes a host and a fluorescent dopant, an electron transporting zone, a cathode, a blocking layer adjacent to the emitting layer in the electron transporting zone where the blocking layer includes an aromatic heterocyclic derivative with an azine ring and where the triplet energy ETb (eV) of the aromatic heterocyclic derivative is larger than a triplet energy ETh (eV) of the host.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 1, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuichiro KAWAMURA, Hiroyuki SAITO, Hitoshi KUMA, Masahiro KAWAMURA, Yukitoshi JINDE, Hirokatsu ITO, Takayasu SADO, Sayaka MIZUTANI
  • Patent number: 9324950
    Abstract: An organic electroluminescence device that includes an anode, an emitting layer that includes a host and a fluorescent dopant, an electron transporting zone, a cathode, a blocking layer adjacent to the emitting layer in the electron transporting zone where the blocking layer includes an aromatic heterocyclic derivative with an azine ring and where the triplet energy ETb (eV) of the aromatic heterocyclic derivative is larger than a triplet energy ETh (eV) of the host.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 26, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuichiro Kawamura, Hiroyuki Saito, Hitoshi Kuma, Masahiro Kawamura, Yukitoshi Jinde, Hirokatsu Ito, Takayasu Sado, Sayaka Mizutani
  • Patent number: 9174938
    Abstract: An organic electroluminescence device including: an anode (10), a cathode (70), an emitting layer (40) including an organic compound, which is between the anode (10) and the cathode (70), two or more layers arranged in a hole injection and transport region which is between the anode (10) and the emitting layer (40), and one or more layers arranged in an electron injection and transport region which is between the emitting layer (40) and the cathode (70), wherein a layer in the hole injection and transport region, which is in contact with the emitting layer (40), includes an aromatic amine derivative having a carbazole skeleton, one of the layers other than the layer in contact with the emitting layer (40) in the hole injection and transport region includes one or more materials selected from the group consisting of thiophene derivatives, tricyclic or more cyclic fused aromatic derivatives, amine derivatives excluding the compound represented by the following formula (A), conductive polymers, CFx, CuPc, transi
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 3, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yukitoshi Jinde, Hiroyuki Saito, Kenichi Fukuoka, Hiroshi Yamamoto, Yuichiro Kawamura, Masahiro Kawamura, Takashi Arakane
  • Patent number: 9153790
    Abstract: An organic electroluminescence device including an anode, an emitting layer, a blocking layer, an electron-injecting layer and a cathode in sequential order; wherein the emitting layer contains a host and a dopant which gives fluorescent emission of which the main peak wavelength is 550 nm or less; the affinity Ad of the dopant is smaller than the affinity Ah of the host; the triplet energy ETd of the dopant is larger than the triplet energy ETh of the host; the triplet energy ETb of the blocking layer is larger than ETh; and the blocking layer includes an aromatic hydrocarbon compound.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: October 6, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
  • Publication number: 20150280158
    Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer interposed therebetween. The organic compound layer includes a plurality of emitting layers at least including a first emitting layer and a second emitting layer. The first emitting layer contains a first host material and a fluorescent first luminescent material. The second emitting layer contains a second luminescent material that is different from the first luminescent material. A difference ?ST(H1) between singlet energy EgS(H1) of the first host material and an energy gap Eg77K(H1) at 77[K] of the first host material satisfies a specific relationship. One of the first luminescent material and the second luminescent material has a main peak wavelength from 400 nm to less than 500 nm and the other of the first luminescent material and the second luminescent material has a main peak wavelength from 500 nm to 700 nm.
    Type: Application
    Filed: September 24, 2013
    Publication date: October 1, 2015
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Toshinari Ogiwara, Yukitoshi Jinde
  • Patent number: 8883323
    Abstract: An organic electroluminescence device that includes an anode, an emitting layer that includes a host and a dopant, a blocking layer, an electron injecting layer, and a cathode where the blocking layer includes an aromatic heterocyclic derivative, the triplet energy ETb (eV) of the blocking layer is larger than a triplet energy ETh (eV) of the host, and the affinity Ab (eV) of the blocking layer and an affinity Ae (eV) of the electron injecting layer satisfy a relationship of Ae?Ab<0.2.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: November 11, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yuichiro Kawamura, Hiroyuki Saito, Hitoshi Kuma, Masahiro Kawamura, Yukitoshi Jinde, Hirokatsu Ito, Takayasu Sado, Sayaka Mizutani
  • Patent number: 8847218
    Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer interposed therebetween. The organic compound layer includes a plurality of emitting layers including a first emitting layer and a second emitting layer, in which at least one of the first and second emitting layers contains a phosphorescent dopant material, and a space layer between the first and second emitting layers. The space layer contains a compound satisfying a relationship of the following numerical formula (1) in terms of a difference ?ST between singlet energy EgS and an energy gap Eg77K at 77K, [Numerical Formula 1] ?ST=EgS?Eg77K?0.5 (eV)??(1).
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: September 30, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Yukitoshi Jinde, Toshinari Ogiwara, Tetsuya Inoue, Chishio Hosokawa
  • Patent number: 8710493
    Abstract: An organic electroluminescence device includes an anode, a cathode and layers between the anode and the cathode, the layers at least including a hole transporting layer, a first emitting layer, a second emitting layer and an electron transporting layer, in which the first emitting layer includes a first host material and a first luminescent material and the second emitting layer is continuously formed on the first emitting layer near the cathode and includes a second host material and a second luminescent material. The second host material is a monoazine derivative, a diazine derivative, or a triazine derivative. The first and second luminescent materials are different metal complexes.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: April 29, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa, Yukitoshi Jinde
  • Publication number: 20130292664
    Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer interposed therebetween. The organic compound layer includes a plurality of emitting layers including a first emitting layer and a second emitting layer, in which at least one of the first and second emitting layers contains a phosphorescent dopant material, and a space layer between the first and second emitting layers. The space layer contains a compound satisfying a relationship of the following numerical formula (1) in terms of a difference ?ST between singlet energy EgS and an energy gap Eg77K at 77K, [Numerical Formula 1] ?ST=EgS?Eg77K?0.5 (eV)??(1).
    Type: Application
    Filed: January 20, 2012
    Publication date: November 7, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki Nishimura, Yukitoshi Jinde, Toshinari Ogiwara, Tesuya Inoue, Chishio Hosokawa
  • Publication number: 20130270539
    Abstract: An organic electroluminescence device including at least an anode, an emitting layer, an electron-transporting region and a cathode in sequential order, wherein the emitting layer contains a host and a dopant which gives fluorescent emission of which the main peak wavelength is 550 nm or less; the affinity Ad of the dopant is equal to or larger than the affinity Ah of the host; the triplet energy ETd of the dopant is larger than the triplet energy ETh of the host; and a blocking layer is provided within the electron-transporting region such that it is adjacent to the emitting layer, and the triplet energy ETb of the blocking layer is larger than ETh.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 17, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: HITOSHI KUMA, YUICHIRO KAWAMURA, YUKITOSHI JINDE, TOSHINARI OGIWARA, CHISHIO HOSOKAWA
  • Publication number: 20130240859
    Abstract: A tandem organic electroluminescence device including a first emitting unit (3), an intermediate unit (4) and a second emitting unit (5) being stacked between opposing electrodes (2) and (6) the first emitting unit (3) including a blue fluorescent dopant and a red fluorescent dopant and the second emitting unit (5) including a red phosphorescent dopant and a green phosphorescent dopant.
    Type: Application
    Filed: October 20, 2011
    Publication date: September 19, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takashi Arakane, Kazuki Nishimura, Kenichi Fukuoka, Hitoshi Kuma, Yukitoshi Jinde