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).
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Patent number: 9899620Abstract: 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: GrantFiled: February 22, 2017Date of Patent: February 20, 2018Assignee: IDEMITSU KOSAN CO. LTD.Inventors: Toshinari Ogiwara, Yukitoshi Jinde
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Patent number: 9812661Abstract: 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: GrantFiled: June 4, 2013Date of Patent: November 7, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
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Patent number: 9614170Abstract: 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: GrantFiled: September 24, 2013Date of Patent: April 4, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Toshinari Ogiwara, Yukitoshi Jinde
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Patent number: 9324950Abstract: 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: GrantFiled: November 22, 2011Date of Patent: April 26, 2016Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yuichiro Kawamura, Hiroyuki Saito, Hitoshi Kuma, Masahiro Kawamura, Yukitoshi Jinde, Hirokatsu Ito, Takayasu Sado, Sayaka Mizutani
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Patent number: 9174938Abstract: 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, transiType: GrantFiled: December 19, 2008Date of Patent: November 3, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yukitoshi Jinde, Hiroyuki Saito, Kenichi Fukuoka, Hiroshi Yamamoto, Yuichiro Kawamura, Masahiro Kawamura, Takashi Arakane
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Patent number: 9153790Abstract: 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: GrantFiled: May 27, 2010Date of Patent: October 6, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
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Publication number: 20150280158Abstract: 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: ApplicationFiled: September 24, 2013Publication date: October 1, 2015Applicant: Idemitsu Kosan Co., Ltd.Inventors: Toshinari Ogiwara, Yukitoshi Jinde
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Patent number: 8883323Abstract: 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: GrantFiled: November 22, 2011Date of Patent: November 11, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yuichiro Kawamura, Hiroyuki Saito, Hitoshi Kuma, Masahiro Kawamura, Yukitoshi Jinde, Hirokatsu Ito, Takayasu Sado, Sayaka Mizutani
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Patent number: 8847218Abstract: 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: GrantFiled: January 20, 2012Date of Patent: September 30, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Yukitoshi Jinde, Toshinari Ogiwara, Tetsuya Inoue, Chishio Hosokawa
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Patent number: 8710493Abstract: 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: GrantFiled: May 23, 2011Date of Patent: April 29, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa, Yukitoshi Jinde
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Publication number: 20130292664Abstract: 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: ApplicationFiled: January 20, 2012Publication date: November 7, 2013Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuki Nishimura, Yukitoshi Jinde, Toshinari Ogiwara, Tesuya Inoue, Chishio Hosokawa
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Publication number: 20130240859Abstract: 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: ApplicationFiled: October 20, 2011Publication date: September 19, 2013Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Takashi Arakane, Kazuki Nishimura, Kenichi Fukuoka, Hitoshi Kuma, Yukitoshi Jinde
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Publication number: 20130187143Abstract: 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: ApplicationFiled: March 11, 2013Publication date: July 25, 2013Inventors: Kazuki NISHIMURA, Toshihiro Iwakuma, Masahiro Kawamura, Chishio Hosokawa, Kenichi Fukuoka, Yukitoshi Jinde
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Patent number: 8476823Abstract: 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: GrantFiled: May 27, 2010Date of Patent: July 2, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hitoshi Kuma, Yuichiro Kawamura, Yukitoshi Jinde, Toshinari Ogiwara, Chishio Hosokawa
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Patent number: 8426036Abstract: 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: GrantFiled: July 4, 2008Date of Patent: April 23, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Masahiro Kawamura, Chishio Hosokawa, Kenichi Fukuoka, Yukitoshi Jinde
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Patent number: 8367222Abstract: 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: GrantFiled: June 25, 2009Date of Patent: February 5, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Takashi Arakane, Yukitoshi Jinde, Hiroyuki Saito, Kazuki Nishimura, Kenichi Fukuoka, Toshio Sakai
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Patent number: 8221907Abstract: 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: GrantFiled: July 2, 2008Date of Patent: July 17, 2012Assignee: 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
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Patent number: 8207526Abstract: 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: GrantFiled: March 24, 2008Date of Patent: June 26, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Yukitoshi Jinde, Chishio Hosokawa
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Publication number: 20120126205Abstract: 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: ApplicationFiled: January 31, 2011Publication date: May 24, 2012Inventors: Yuichiro Kawamura, Hiroyuki Saito, Hitoshi Kuma, Masahiro Kawamura, Yukitoshi Jinde, Hirokatsu Ito
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Publication number: 20120126208Abstract: 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: ApplicationFiled: November 22, 2011Publication date: May 24, 2012Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yuichiro Kawamura, Hiroyuki Saito, Hitoshi Kuma, Masahiro Kawamura, Yukitoshi Jinde, Hirokatsu Ito, Takayasu Sado, Sayaka Mizutani