Patents by Inventor Hideko Inoue

Hideko Inoue 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: 9972794
    Abstract: Disclosed is an organometallic complex capable of variable phosphorescence characteristics and yellow emission at high luminance. The organometallic complex has a structure represented by a formula (G1), where at least one of R4, R5, R6, and R7 is a phenoxy group, M is a Group 9 metal or a Group 10 metal, and n is 2 when the central metal M is a Group 9 element, or n is 1 when the central metal M is a Group 10 element.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: May 15, 2018
    Assignee: Semiconductor Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Nobuharu Ohsawa, Satoko Shitagaki, Satoshi Seo
  • Patent number: 9960371
    Abstract: A novel organometallic complex having high heat resistance is provided. The organometallic complex, which includes a structure represented by General Formula (G1), includes iridium and a ligand. The ligand has a pyrazine skeleton. Iridium is bonded to nitrogen at the 1-position of the pyrazine skeleton. A phenyl group that has an alkyl group as a substituent is bonded at each of the 2- and 3-positions of the pyrazine skeleton, and a phenyl group that has a cyano group as a substituent is bonded at the 5-position of the pyrazine skeleton. The ortho position of the phenyl group bonded at the 2-position of the pyrazine skeleton is bonded to iridium. In the formula, each of A1 to A4 independently represents a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 1, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya Yamaguchi, Hideko Inoue, Hiromitsu Kido, Satoshi Seo, Tatsuyoshi Takahashi
  • Publication number: 20180102488
    Abstract: As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a ?-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, R1 to R4 each represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.
    Type: Application
    Filed: December 8, 2017
    Publication date: April 12, 2018
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoya Yamaguchi, Hiromi Seo, Satoshi Seo, Kunihiko Suzuki, Miki Kanamoto
  • Patent number: 9938309
    Abstract: A novel light-emitting material is provided. A novel orgnometallic complex is provided. An orgnometallic complex having a high carrier-transport property is provided. An orgnometallic complex having a deep HOMO level and/or a deep LUMO level is provided. An orgnometallic complex having a high charge-injection property is provided. Another object is to provide an organometallic complex that can exhibit yellow to blue phosphorescence. An organometallic complex that has a high carrier-transport property and exhibits green to blue phosphorescence is provided. An organometallic complex including a ligand having a structure of 5-(2-pyridinyl)-5H-benzimidazo[1,2-a]benzimidazole and a light-emitting material including the organometallic complex are provided.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: April 10, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoka Hara, Miki Kanamoto, Hideko Inoue, Satoshi Seo, Satomi Mitsumori, Takeyoshi Watabe, Nobuharu Ohsawa
  • Patent number: 9929356
    Abstract: A light-emitting element in which a light-emitting layer contains an organic compound capable of emitting phosphorescence is provided. A light-emitting element which can have low driving voltage, high current efficiency, or a long lifetime is provided. In a light-emitting element in which a light-emitting layer is interposed between a pair of electrodes, the light-emitting layer contains an organic compound. The organic compound has a 1,2,4-triazole skeleton, a phenyl skeleton, an arylene skeleton, and a Group 9 metal or a Group 10 metal. The nitrogen atom at the 4-position of the 1,2,4-triazole skeleton coordinates to the Group 9 metal or the Group 10 metal. The nitrogen atom at the 1-position of the 1,2,4-triazole skeleton is bonded to a phenyl skeleton. The arylene skeleton is bonded to the 3-position of the 1,2,4-triazole skeleton and the Group 9 metal or the Group 10 metal.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: March 27, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Satoshi Seo, Nobuharu Ohsawa, Kunihiko Suzuki
  • Patent number: 9929352
    Abstract: An object is to provide an organic compound having high heat resistance and a light-emitting element, a light-emitting device, an electronic device, and a display device each having high reliability. Provided are an organic compound having a 2,2?-(pyridine-2,6-diyl)bipyrimidine skeleton in which the 2-positions of pyrimidine skeletons are bonded to the 2- and 6-positions of a pyridine skeleton, and having a structure in which at least one aryl group having a fused structure with 10 to 16 carbon atoms is bonded to the 2,2?-(pyridine-2,6-diyl)bipyrimidine skeleton, and a light-emitting element, a light-emitting device, an electronic device, and a display device each containing the organic compound.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 27, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Yui Yamada, Tsunenori Suzuki, Satoshi Seo
  • Patent number: 9929350
    Abstract: A light-emitting element includes a light-emitting layer including a guest, an n-type host and a p-type host between a pair of electrodes, where the difference between the energy difference between a triplet excited state and a ground state of the n-type host (or p-type host) and the energy difference between a triplet excited state and a ground state of the guest is 0.15 eV or more. Alternatively, in such a light-emitting element, the LUMO level of the n-type host is higher than the LUMO level of the guest by 0.1 eV or more, or the HOMO level of the p-type host is lower than the HOMO level of the guest by 0.1 eV or more.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 27, 2018
    Assignee: Semiconducor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Satoshi Seo, Nobuharu Ohsawa, Satoko Shitagaki, Hideko Inoue, Hiroshi Kadoma, Harue Osaka, Kunihiko Suzuki, Yasuhiko Takemura
  • Patent number: 9923149
    Abstract: Provided is a novel heterocyclic compound, a novel heterocyclic compound that can be used in a light-emitting element, or a highly reliable light-emitting device, electronic device, and lighting device in each of which the light-emitting element using the novel heterocyclic compound is used. One embodiment of the present invention is a heterocyclic compound represented by General Formula (G1). In General Formula (G1), each of A1 and A2 independently represents nitrogen or carbon bonded to hydrogen, and at least one of A1 and A2 represents nitrogen; Ar represents a substituted or unsubstituted arylene group having 6 to 18 carbon atoms; B represents a substituted or unsubstituted fluorenyl group; and R1 represents hydrogen, an alkyl group having 1 to 6 carbon atoms, or an aryl group having 6 to 13 carbon atoms.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: March 20, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Hara, Yasushi Kitano, Hiromi Seo, Tatsuyoshi Takahashi, Satoshi Seo
  • Patent number: 9917261
    Abstract: A novel organic compound is provided. Alternatively, an organic compound that can be used as an electron-transport material of a light-emitting element is provided. An organic compound in which heteroaromatic groups each including two pyridine rings are bonded to the 2- and 8-positions of dibenzofuran is provided. The organic compound is an organic compound that can be used as an electron-transport material of a light-emitting element.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: March 13, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Yui Yamada, Tsunenori Suzuki, Satoshi Seo
  • Patent number: 9905782
    Abstract: A light-emitting element having high emission efficiency is provided. A light-emitting element having a low driving voltage is provided. A novel compound which can be used for a transport layer or as a host material or a light-emitting material of a light-emitting element is provided. A novel compound with a benzofuropyrimidine skeleton is provided. Also provided is a light-emitting element which includes the compound with the benzofuropyrimidine skeleton between a pair of electrodes.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: February 27, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Miki Kanamoto, Hiromi Seo, Satoshi Seo, Tatsuyoshi Takahashi, Tomoka Nakagawa
  • Publication number: 20180006232
    Abstract: A novel heterocyclic compound is provided. A novel heterocyclic compound that can be used for a light-emitting element is provided. A novel heterocyclic compound that can improve the reliability of a light-emitting element when used for a light-emitting element is provided. A light-emitting element, a light-emitting device, an electronic appliance, or a lighting device which includes the novel heterocyclic compound and is highly reliable is provided. One embodiment of the present invention is a heterocyclic compound represented by a general formula (G0). In the general formula (G0), A represents a dibenzo[f,h]quinoxalinyl group, B represents a substituted or unsubstituted fluorenyl group, and Ar represents a substituted or unsubstituted arylene group having 6 to 25 carbon atoms.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 4, 2018
    Inventors: Hideko INOUE, Yasushi KITANO, Hiromi SEO, Tatsuyoshi TAKAHASHI, Satoshi SEO
  • Publication number: 20170373257
    Abstract: A novel organic compound that is effective in improving the element characteristics and reliability is provided. The organic compound, which is represented by General Formula (G1), has a structure in which a dibenzoquinazoline ring is bonded to a skeleton with a hole-transport property via one or more arylene groups. Any one of R1 to R9 in General Formula (G1) is bonded to any one of R10 to R14 in General Formula (G1-1). Note that n is any of 0 to 3; m is 1 or 2; A represents a single bond, or an arylene group; B represents a ring having a dibenzofuran skeleton, dibenzothiophene skeleton, or carbazole skeleton; and each of R1 to R15 independently represents any of hydrogen, an alkyl group, a cycloalkyl group, and an aryl group.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 28, 2017
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoka Hara, Hideko INOUE, Tatsuyoshi TAKAHASHI, Satoshi SEO
  • Patent number: 9843003
    Abstract: As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a ?-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, R1 to R4 each represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: December 12, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoya Yamaguchi, Hiromi Seo, Satoshi Seo, Kunihiko Suzuki, Miki Kanamoto
  • Patent number: 9843002
    Abstract: A novel organometallic complex having high color purity is provided. The organometallic complex includes a structure which includes iridium and a ligand and is represented by a general formula (G1). The ligand includes a pyrido[2,3-b]indole skeleton and a pyrimidine skeleton bonded to the 3-position of the pyrido[2,3-b]indole skeleton. The 2-position of the pyrido[2,3-b]indole skeleton and the pyrimidine skeleton are each bonded to the iridium. In the general formula (G1), R1 to R9 each independently represent any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: December 12, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya Yamaguchi, Hideko Inoue, Tatsuyoshi Takahashi
  • Patent number: 9837621
    Abstract: To provide a novel compound which can be used as a host material in which a light-emitting substance is dispersed. To provide a light-emitting element having a long lifetime. A compound represented by General Formula (G0). In the formula, A represents any one of a substituted or unsubstituted dibenzothiophenylene group and a substituted or unsubstituted dibenzofuranylene group, X represents a substituted or unsubstituted fluorenyl group, E represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group, and Ar represents a substituted or unsubstituted arylene group having 6 to 30 carbon atoms.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: December 5, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Hiroki Suzuki, Hiromi Seo, Tatsuyoshi Takahashi, Satoshi Seo
  • Patent number: 9825230
    Abstract: A novel heterocyclic compound is provided. A novel heterocyclic compound that can be used for a light-emitting element is provided. A novel heterocyclic compound that can improve the reliability of a light-emitting element when used for a light-emitting element is provided. A light-emitting element, a light-emitting device, an electronic appliance, or a lighting device which includes the novel heterocyclic compound and is highly reliable is provided. One embodiment of the present invention is a heterocyclic compound represented by a general formula (G0). In the general formula (G0), A represents a dibenzo[f,h]quinoxalinyl group, B represents a substituted or unsubstituted fluorenyl group, and Ar represents a substituted or unsubstituted arylene group having 6 to 25 carbon atoms.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: November 21, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Yasushi Kitano, Hiromi Seo, Tatsuyoshi Takahashi, Satoshi Seo
  • Patent number: 9793498
    Abstract: It is an object of the present invention to provide an organometallic complex that can emit phosphorescence. In the following general formula (G1), X represents —O— or —N(R10)—. R1 to R9 each represent any of hydrogen, an alkyl group or a cycloalkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms, an acyloxy group having 1 to 6 carbon atoms, a halogen group, a haloalkyl group, and an aryl group having 6 to 12 carbon atoms. In addition, R10 represents any of an alkyl group or a cycloalkyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms, and a heteroaryl group having 4 to 10 carbon atoms. Moreover, M represents an element belonging to Group 9 or 10.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: October 17, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Masakazu Egawa, Satoshi Seo
  • Publication number: 20170294594
    Abstract: A dibenzo[f,h]quinoxaline derivative in which impurities are reduced and a novel method of synthesizing the dibenzo[f,h]quinoxaline derivative in which impurities are reduced are provided. In addition, a light-emitting element, a light-emitting device, an electronic appliance, or a lighting device with high emission efficiency and high reliability in which the dibenzo[f,h]quinoxaline derivative is used as an EL material is provided. In the synthesis method, a 2-(chloroaryl)dibenzo[f,h]quinoxaline derivative is used as a synthetic intermediate in a synthetic pathway so that an impurity contained in a final product can be removed easily by purification by sublimation.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 12, 2017
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko INOUE, Tomohiro KUBOTA, Satoshi SEO, Hayato YAMAWAKI, Yasushi KITANO
  • Publication number: 20170288155
    Abstract: To provide a novel organometallic complex. The organometallic complex is represented by General Formula (G1) and includes a central metal, a first ligand, and a second ligand. The first ligand and the second ligand are cyclometalated ligands. At least one of the first ligand and the second ligand includes a substituted or unsubstituted aryl group as a substituent. In General Formula (G1), each of R1 to R15 independently represents any of hydrogen, a halogen group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. Note that at least one of R1 to R15 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Inventors: Miki KURIHARA, Yui YAMADA, Hideko INOUE, Satoshi SEO, Tatsuyoshi TAKAHASHI, Hiromitsu KIDO
  • Publication number: 20170288154
    Abstract: A novel organometallic complex with high reliability is provided. A light-emitting element includes an EL layer between a pair of electrodes. The EL layer includes at least a light-emitting layer. The light-emitting layer contains an organometallic complex. The organometallic complex includes a first ligand and a second ligand which are coordinated to a central metal. The HOMO is distributed over the first ligand, and the LUMO is distributed over the second ligand. The first ligand and the second ligand are cyclometalated ligands.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Inventors: Satoshi SEO, Hideko INOUE, Miki KURIHARA, Yui YAMADA, Tatsuyoshi TAKAHASHI, Hiromitsu KIDO