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: 20120126205
    Abstract: An organic electroluminescence device includes an anode, an emitting layer, a blocking layer, an electron injecting layer, and a cathode in sequential order. The emitting layer includes a host and dopant. The blocking layer includes an aromatic heterocyclic derivative. A triplet energy ETb (eV) of the blocking layer is larger than a triplet energy ETh (eV) of the host. An affinity Ab (eV) of the blocking layer and an affinity Ab (eV) of the electron injecting layer satisfy a relationship of Ae?Ab<0.2.
    Type: Application
    Filed: January 31, 2011
    Publication date: May 24, 2012
    Inventors: Yuichiro Kawamura, Hiroyuki Saito, Hitoshi Kuma, Masahiro Kawamura, Yukitoshi Jinde, Hirokatsu Ito
  • Publication number: 20120119197
    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: Application
    Filed: May 23, 2011
    Publication date: May 17, 2012
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki Nishimura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa, Yukitoshi Jinde
  • Publication number: 20100301319
    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: Application
    Filed: May 27, 2010
    Publication date: December 2, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
  • Publication number: 20100301312
    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: Application
    Filed: December 19, 2008
    Publication date: December 2, 2010
    Inventors: Yukitoshi Jinde, Hiroyuki Saito, Kenichi Fukuoka, Hiroshi Yamamoto, Yuichiro Kawamura, Masahiro Kawamura, Takashi Arakane
  • Publication number: 20100295444
    Abstract: An organic electroluminescence device including 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 a material constituting the blocking layer is larger than ETh.
    Type: Application
    Filed: June 3, 2009
    Publication date: November 25, 2010
    Applicant: Idemitsu Kosan co., Ltd.
    Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
  • Publication number: 20100295445
    Abstract: An organic electroluminescence device containing 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; the affinity Ab of the blocking layer and the affinity Ae of the electron-injecting layer satisfies Ae?Ab?0.2 eV; and the electron mobility of the material constituting the blocking layer is 10?6 cm2/Vs or more in an electric field intensity of 0.04 to 0.5 MV/cm.
    Type: Application
    Filed: June 4, 2009
    Publication date: November 25, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
  • Publication number: 20100295027
    Abstract: An organic electroluminescence device includes: an anode; a cathode; and an organic thin-film layer provided between the anode and the cathode and including at least three emitting layers. The organic thin-film layer includes: a first emitting layer adjacent to the anode; a second emitting layer adjacent to the cathode; and a third emitting layer interposed between the first emitting layer and the second emitting layer. The first emitting layer, the second emitting layer and the third emitting layer contain phosphorescent dopants. The first emitting layer and the second emitting layer use fused polycyclic aromatic derivatives as host materials.
    Type: Application
    Filed: August 21, 2009
    Publication date: November 25, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yuichiro Kawamura, Kazuki Nishimura, Yukitoshi Jinde, Hitoshi Kuma, Toshinari Ogiwara
  • Publication number: 20100219400
    Abstract: Provided is an organic electroluminescence device, including: an anode; a cathode; and organic thin film layers provided between the anode and the cathode, in which: the organic thin film layers have a light emitting layer, and have a hole injecting layer and a hole transporting layer, or a hole injecting/transporting layer on a side which is closer to the anode than the light emitting layer is; the hole injecting layer or the hole injecting/transporting layer contains an aromatic amine derivative having a specific substituent, and the hole transporting layer or the hole injecting/transporting layer contains an aromatic amine derivative having a specific substituent.
    Type: Application
    Filed: June 25, 2009
    Publication date: September 2, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Takashi Arakane, Yukitoshi Jinde, Hiroyuki Saito, Kazuki Nishimura, Kenichi Fukuoka, Toshio Sakai
  • Publication number: 20100207110
    Abstract: An organic EL device includes: an anode for injecting holes; a phosphorescent-emitting layer; a fluorescent-emitting layer; and a cathode for injecting electrons. The phosphorescent-emitting layer contains a phosphorescent host and a phosphorescent dopant for phosphorescent emission. The fluorescent-emitting layer contains a fluorescent host and a fluorescent dopant for fluorescent emission. The fluorescent host is at least one of an asymmetric anthracene derivative represented by a formula (1) below and a pyrene derivative represented by a formula (2) below.
    Type: Application
    Filed: July 4, 2008
    Publication date: August 19, 2010
    Applicant: Idemitsu Kosan Co. Ltd
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Masahiro Kawamura, Chishio Hosokawa, Kenichi Fukuoka, Yukitoshi Jinde
  • Publication number: 20100194270
    Abstract: A chrysene derivative shown by the following formula: wherein R1 to R10 and R21 to R25 are independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 10 ring carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 20 carbon atoms, a substituted or unsubstituted arylsilyl group having 8 to 30 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms, provided that at least one of R21 to R25 is a substituted or unsubstituted fused aromatic ring group having 10 to 20 ring carbon atoms or a substituted or unsubstituted fluorenyl group.
    Type: Application
    Filed: July 2, 2008
    Publication date: August 5, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masakazu Funahashi, Tetsuya Inoue, Yukitoshi Jinde, Yuichiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
  • Patent number: 7768195
    Abstract: An organic electroluminescent device (20) including an anode (1), a first emitting layer (3), a carrier barrier layer (4), a second emitting layer (5), and a cathode (7) stacked in that order. The first emitting layer (3) is formed of a hole transporting material, and the second emitting layer (5) is formed of an electron transporting material. The affinity level of the carrier barrier layer (4) is smaller than the affinity level of the second emitting layer (5) in an amount of 0.2 eV or more, and the ionization potential (Ie1) of the carrier barrier layer (4) and the ionization potential (Ih1) of the first emitting layer (3) satisfy Ie1<Ih1+0.1 (eV) (1).
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: August 3, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi Jinde, Hitoshi Kuma
  • Publication number: 20100171109
    Abstract: An organic EL device includes: an anode for injecting holes; a phosphorescent-emitting layer; a fluorescent-emitting layer; and a cathode for injecting electrons. The phosphorescent-emitting layer contains a phosphorescent host and a phosphorescent dopant for phosphorescent emission. The fluorescent-emitting layer contains a fluorescent host and a fluorescent dopant for fluorescent emission. The phosphorescent host has a substituted or unsubstituted polycyclic fused aromatic skeleton and has a triplet energy gap of 2.0 eV to 3.0 eV.
    Type: Application
    Filed: July 4, 2008
    Publication date: July 8, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Masahiro Kawamura, Kenichi Fukuoka, Chishio Hosokawa, Yukitoshi Jinde
  • Publication number: 20100044689
    Abstract: A phosphorescent-emitting layer contains a phosphorescent host and a phosphorescent dopant for providing phosphorescence, and a fluorescent-emitting layer contains a fluorescent host and a fluorescent dopant for providing fluorescence. A charge blocking layer blocks electrons injected into the fluorescent host of the fluorescent-emitting layer from being injected toward the charge blocking layer from the fluorescent-emitting layer, and also injects holes into the fluorescent-emitting layer from the phosphorescent-emitting layer. A triplet energy gap EgPD of the phosphorescent dopant of the phosphorescent-emitting layer, a triplet energy gap EgEB of the charge blocking layer and a triplet energy gap EgFH of the fluorescent host of the fluorescent-emitting layer satisfy the following formula (1).
    Type: Application
    Filed: March 24, 2008
    Publication date: February 25, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Yukitoshi Jinde, Chishio Hosokawa
  • Publication number: 20080049413
    Abstract: An organic electroluminescent device (10) including: an anode (1), a first emitting layer (3), a carrier barrier layer (4), a second emitting layer (5) and a cathode (7) in that order; the carrier barrier layer (4) including an aromatic amine derivative having a glass transition temperature of more than 110° C. represented by the following general formula (1); wherein L1 is a divalent group of a substituted or unsubstituted arylene group with 5 to 60 carbon atoms, or a substituted or unsubstituted heterocyclic group; Ar1 is a substituted or unsubstituted substituent with 10 to 50 nucleus atoms, or a substituent represented by the following general formula (2); and Ar2 to Ar4 are each a substituted or unsubstituted substituent with 5 to 50 nucleus atoms or a substituent represented by the following formula (2), provided that Ar1 to Ar4 are not condensed rings.
    Type: Application
    Filed: September 15, 2006
    Publication date: February 28, 2008
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi Jinde, Nobuhiro Yabunouchi, Hitoshi Kuma, Chishio Hosokawa
  • Publication number: 20070273270
    Abstract: An organic electroluminescent device (20) including an anode (1), a first emitting layer (3), a carrier barrier layer (4), a second emitting layer (5), and a cathode (7) stacked in that order. The first emitting layer (3) is formed of a hole transporting material, and the second emitting layer (5) is formed of an electron transporting material. The affinity level of the carrier barrier layer (4) is smaller than the affinity level of the second emitting layer (5) in an amount of 0.2 eV or more, and the ionization potential (Ie1) of the carrier barrier layer (4) and the ionization potential (Ih1) of the first emitting layer (3) satisfy Ie1<Ih1+0.1 (eV) (1).
    Type: Application
    Filed: June 27, 2006
    Publication date: November 29, 2007
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi Jinde, Hitoshi Kuma
  • Publication number: 20070275266
    Abstract: An organic electroluminescent device including an anode (1), a first emitting layer (3), a carrier barrier layer (4), a second emitting layer (5), and a cathode (7) stacked in that order; the first emitting layer (3) including a host material of a compound represented by X—(Y)n, and a dopant material of a compound containing a fluoranthene skeleton or a perylene skeleton; the affinity level of the carrier barrier layer (4) being smaller than the affinity level of the second emitting layer (5) in an amount of 0.2 eV or more; and the ionization potential (Ie1) of the carrier barrier layer (4) and the ionization potential (Ih1) of the first emitting layer (3) satisfying Ie1<Ih1+0.1 (eV).
    Type: Application
    Filed: June 27, 2006
    Publication date: November 29, 2007
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi Jinde, Hitoshi Kuma, Kiyoshi Ikeda, Mitsunori Ito
  • Publication number: 20060049419
    Abstract: A light emitting diode device can include a pair of opposed electrodes and a thin film multilayer structure interposed between the pair of electrodes. The device can include one or more light emitting layers each having an emission interface. In the device, there can be adjacent layers having an interfacial plane therebetween. The interfacial plane being disposed in a position where an optical path length from the emission interface to the interfacial plane is substantially equal to, or less than, the coherent length of light emitted from the emission interface. Furthermore, the difference in refractive index between the adjacent layers is substantially equal to, or less than, 0.6. This can eliminate an interference effect within the thin film multilayer structure, thereby enhancing light emitting efficiency and achieving intended light color.
    Type: Application
    Filed: September 6, 2005
    Publication date: March 9, 2006
    Inventors: Shinichi Tanaka, Masatoshi Horii, Akio Ogawa, Yukitoshi Jinde, Yasuyuki Kawakami