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: 9184398
    Abstract: Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: November 10, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoya Yamaguchi, Satoko Shitagaki, Takahiro Ushikubo, Satoshi Seo, Yui Yamada, Hiromi Nowatari
  • Patent number: 9175213
    Abstract: A light-emitting element having high external quantum efficiency is provided. A light-emitting element having low drive voltage is provided. Provided is a light-emitting element which includes a light-emitting layer containing a phosphorescent compound, a first organic compound, and a second organic compound between a pair of electrodes. A combination of the first organic compound and the second organic compound forms an exciplex (excited complex). An emission spectrum of the exciplex overlaps with an absorption band located on the longest wavelength side of an absorption spectrum of the phosphorescent compound. A peak wavelength of the emission spectrum of the exciplex is longer than or equal to a peak wavelength of the absorption band located on the longest wavelength side of the absorption spectrum of the phosphorescent compound.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: November 3, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Satoko Shitagaki, Nobuharu Ohsawa, Hideko Inoue, Kunihiko Suzuki
  • Publication number: 20150311454
    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: Application
    Filed: April 24, 2015
    Publication date: October 29, 2015
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko INOUE, Hiroki SUZUKI, Hiromi SEO, Tatsuyoshi TAKAHASHI, Satoshi SEO
  • Publication number: 20150311446
    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: April 16, 2015
    Publication date: October 29, 2015
    Inventors: Hideko INOUE, Yasushi KITANO, Hiromi SEO, Tatsuyoshi TAKAHASHI, Satoshi SEO
  • Patent number: 9159934
    Abstract: A novel organic material with fewer impurities, a light-emitting element including the organic material, and a light-emitting device, an electronic appliance, and a lighting device each of which includes the light-emitting element are provided. The organic material is obtained by coupling an aryl halide and an aryl boronic acid or an aryl boronic acid ester. The aryl boronic acid or the aryl boronic acid ester includes at least one of a first impurity in which a boryl group of the aryl boronic acid or the aryl boronic acid ester is substituted by hydrogen and a second impurity in which a molecular mass of 16 or 17 is added to the molecular mass of the first impurity. The concentration of an impurity other than the first impurity and the second impurity is 1% or lower.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: October 13, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Yasushi Kitano, Takao Hamada, Satoshi Seo, Hiroki Suzuki, Tomohiro Kubota
  • Publication number: 20150287936
    Abstract: Provided are organometallic complexes that can exhibit phosphorescence. One of the novel organometallic complexes is represented by General Formula (G1). In General Formula (G1), R1 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aralkyl group having 7 to 10 carbon atoms which may have a substituent. In addition, R2 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. Further, M represents a Group 9 element or a Group 10 element.
    Type: Application
    Filed: June 19, 2015
    Publication date: October 8, 2015
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Nobuharu Ohsawa, Satoshi Seo, Yui Yamada
  • Patent number: 9155158
    Abstract: The organometallic complex, which is a novel substance, is represented by General Formula (G1) or General Formula (G2). In General Formula (G1), R1 represents an alkyl group having 1 to 4 carbon atoms and R2 to R10 each represents hydrogen or an alkyl group having 1 to 4 carbon atoms. M represents a Group 9 element or a Group 10 element. When M is a Group 9 element, n is 3, and when M is a Group 10 element, N is 2. In General Formula (G2), R11 represents an alkyl group having 1 to 4 carbon atoms and R12 to R20 each represents hydrogen or an alkyl group having 1 to 4 carbon atoms. M represents a Group 9 element or a Group 10 element. When M is a Group 9 element, n is 3, and when M is a Group 10 element, N is 2.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: October 6, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Yui Yamada, Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 9127032
    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 17, 2012
    Date of Patent: September 8, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoya Yamaguchi, Hiromi Seo, Satoshi Seo, Kunihiko Suzuki, Miki Kanamoto
  • Patent number: 9130184
    Abstract: A new light-emitting device utilizing phosphorescence is provided. Further, an electronic device and a lighting device which utilize phosphorescence are provided. One embodiment of the present invention is a light-emitting device including a phosphorescent organometallic iridium complex comprising iridium and either pyrimidine having an aryl group at the 4-position or 1,3,5-triazine having an aryl group at the 2-position. One of nitrogen in the pyrimidine or 1,3,5-triazine is coordinated to the iridium. Also, each of the pyrimidine and 1,3,5-triazine has a substituent such as an alkyl group or an aryl group. Further the ortho position of the aryl group which is bonded to the 4-position of the pyrimidine or the 2-position of the 1,3,5-triazine is bonded to the iridium.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: September 8, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Hideko Inoue, Hiromi Seo, Tomoya Yamaguchi, Satoko Shitagaki, Takahiro Ushikubo
  • Patent number: 9123907
    Abstract: To provide a light-emitting element with high emission efficiency or long lifetime, in which the use amount of a phosphorescent compound is small. To provide a light-emitting element including a light-emitting layer between a pair of electrodes, wherein the light-emitting layer includes a phosphorescent compound, a first organic compound, and a second organic compound, and the combination of the first organic compound and the second organic compound forms an exciplex. The light-emitting element transfers energy by utilizing the overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound and thus has high energy transfer efficiency, even when the concentration of the phosphorescent compound is low.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: September 1, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Satoko Shitagaki, Nobuharu Ohsawa, Hideko Inoue, Hiroshi Kadoma, Harue Osaka, Shunpei Yamazaki
  • Publication number: 20150243911
    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: Application
    Filed: May 7, 2015
    Publication date: August 27, 2015
    Inventors: Hideko INOUE, Masakazu EGAWA, Satoshi SEO
  • Publication number: 20150221879
    Abstract: To provide a novel organometallic complex, and light emitting elements, light emitting devices, and electronic devices which include the organometallic complex. In addition, to provide a composition in which the organometallic complex is dissolved and to provide a method for manufacturing light emitting elements using the composition. An organometallic complex has high solubility in a solvent. In the organometallic complex, the ligand including a pyrazine skeleton is bound to an atom belonging to Group 9 (Co, Rh, or Ir) or an atom belonging to Group 10 (Ni, Pd, or Pt). In addition, the light emission efficiency is high. Therefore, the organometallic complex is preferably used for manufacturing a light emitting element.
    Type: Application
    Filed: April 16, 2015
    Publication date: August 6, 2015
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Satoko SHITAGAKI, Satoshi SEO
  • Publication number: 20150214484
    Abstract: An organometallic complex having a structure represented by the following general formula (G1) is provided. (In the formula, A represents an aromatic hydrocarbon group having 6 to 25 carbon atoms. Further, Z represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or an aryl group having 6 to 25 carbon atoms. In addition, Ar1 represents an aryl group having 6 to 25 carbon atoms. R1 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. Further, M is a central metal and represents an element belonging to Group 9 or Group 10.
    Type: Application
    Filed: April 3, 2015
    Publication date: July 30, 2015
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Satoshi SEO, Nobuharu OHSAWA
  • Patent number: 9065061
    Abstract: Provided are organometallic complexes that can exhibit phosphorescence. One of the novel organometallic complexes is represented by General Formula (G1). In General Formula (G1), R1 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aralkyl group having 7 to 10 carbon atoms which may have a substituent. In addition, R2 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. Further, M represents a Group 9 element or a Group 10 element.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: June 23, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Nobuharu Ohsawa, Satoshi Seo, Yui Yamada
  • Patent number: 9059414
    Abstract: As a novel substance having a novel skeleton, provided is a novel phosphorescent organometallic iridium complex that can emit phosphorescence in a blue green to red wavelength region and has high emission efficiency. The phosphorescent organometallic iridium complex has a ligand having a pyridyl pyrimidine skeleton, i.e., the phosphorescent organometallic iridium complex has a ligand having a structure represented by the following general formula (G0). Note that in the formula, R1 and R4 to R6 separately represent hydrogen or an alkyl group having 1 to 6 carbon atoms; and R2 and R3 separately represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, a phenyl group that may have a substituent, and a pyridyl group that may have a substituent.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: June 16, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Tomoya Yamaguchi, Hiromi Seo, Satoshi Seo
  • Patent number: 9056883
    Abstract: An object is to provide a novel organometallic complex capable of emitting phosphorescence by using, as a ligand, an organic compound with which a variety of derivatives can be easily synthesized. Another object is to provide an organometallic complex having high heat resistance. Other objects are to provide a light-emitting element having high emission efficiency and to provide a light-emitting device, an electronic device, and a lighting device having reduced power consumption. Provided are an organometallic complex including a structure represented by the following General Formula (G1), and a light-emitting element, a light-emitting device, an electronic device, and a lighting device formed using the organometallic complex including the structure represented by the following General Formula (G1).
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: June 16, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Satoshi Seo
  • Patent number: 9048441
    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: September 30, 2010
    Date of Patent: June 2, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Masakazu Egawa, Satoshi Seo
  • Publication number: 20150147840
    Abstract: Provided is a 5,6-diaryl-2-pyrazyl triflate, its synthetic method, and a method for synthesizing an organometallic complex having a triarylpyrazine ligand from the 5,6-diaryl-2-pyrazyl triflate. The triflate is readily obtained from the corresponding 5,6-diarylpyrazin-2-ol, and the palladium-catalyzed coupling of the 5,6-diaryl-2-pyrazyl triflate with an arylboronic acid derivative leads to a high yield of a triarylpyrazine derivative having high purity. The use of the triarylpyrazine derivative in the reaction with a metal compound such as a metal chloride results in an ortho-metallated organometallic complex with high purity. The high purity of the organometallic complex contributes to the extremely high durability of a light-emitting element.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Hideko Inoue, Tomohiro Kubota, Miki Kanamoto
  • Patent number: 9034487
    Abstract: A light-emitting element material including an ionic iridium complex in which a 2,6-bis(2-picolinyl)pyridine structure is coordinated to iridium is provided. Alternatively, a light-emitting element material including an ionic iridium complex represented by the following structural formula (1) is provided. In addition, a light-emitting element including the light-emitting element material is provided.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: May 19, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Satoshi Seo
  • Publication number: 20150131302
    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: Application
    Filed: November 10, 2014
    Publication date: May 14, 2015
    Inventors: Hideko Inoue, Yui Yamada, Tsunenori Suzuki, Satoshi Seo