Patents by Inventor Yuko Kubota

Yuko Kubota 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: 11482687
    Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: October 25, 2022
    Inventors: Shunpei Yamazaki, Takeyoshi Watabe, Tomohiro Kubota, Airi Ueda, Satoshi Seo, Nobuharu Ohsawa, Yuko Kubota
  • Patent number: 11462702
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: October 4, 2022
    Inventors: Satomi Mitsumori, Takeyoshi Watabe, Satoshi Seo, Yuko Kubota
  • Publication number: 20220242834
    Abstract: An electron-transport layer material with a low refractive index is provided. An organic compound represented by General Formula (G1) is provided. In General Formula (G1), one to three of Q1 to Q3 represent N and when one or two of Q1 to Q3 represent N, the remaining two or one of Q1 to Q3 represent CH. Furthermore, R0 represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 3 to 10 carbon atoms, and a group represented by Formula (G1-1). At least one of R1 to R15 represents a substituted or unsubstituted group including any one of a pyrimidinyl group, a pyrazinyl group, and a triazinyl group, and the others each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 3 to 10 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 14 carbon atoms forming a ring, and a substituted or unsubstituted pyridinyl group.
    Type: Application
    Filed: January 19, 2022
    Publication date: August 4, 2022
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Keito Tosu, Yuta Kawano, Airi Ueda, Takeyoshi Watabe, Nobuharu Ohsawa, Stoshi Seo, Harue Osaka, Yuko Kubota
  • Publication number: 20210159440
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 27, 2021
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satomi MITSUMORI, Takeyoshi WATABE, Satoshi SEO, Yuko KUBOTA
  • Publication number: 20210143352
    Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takeyoshi WATABE, Tomohiro KUBOTA, Airi UEDA, Satoshi SEO, Nobuharu OHSAWA, Yuko KUBOTA
  • Patent number: 10910576
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: February 2, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satomi Mitsumori, Takeyoshi Watabe, Satoshi Seo, Yuko Kubota
  • Publication number: 20210005814
    Abstract: A material for a hole-transport layer includes a monoamine compound. The first aromatic group, the second aromatic group, and the third aromatic group are bonded to the nitrogen atom of the monoamine compound. The first and second aromatic groups each independently include 1 to 3 benzene rings. One or both of the first and second aromatic groups have one or more hydrocarbon groups each having 1 to 12 carbon atoms each forming a bond only by the sp3 hybrid orbitals. The total number of the carbon atoms in the hydrocarbon group in the first or second aromatic group is 6 or more. The total number of the carbon atoms in all of the hydrocarbon groups in the first and second aromatic groups is 8 or more. The third aromatic group is a substituted or unsubstituted monocyclic condensed ring or a substituted or unsubstituted bicyclic or tricyclic condensed ring.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 7, 2021
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Takeyoshi WATABE, Tomohiro KUBOTA, Airi UEDA, Satoshi SEO, Nobuharu OHSAWA, Yuko KUBOTA
  • Publication number: 20200280012
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satomi Mitsumori, Takeyoshi Watabe, Satoshi Seo, Yuko Kubota
  • Patent number: 10658604
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: May 19, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satomi Mitsumori, Takeyoshi Watabe, Satoshi Seo, Yuko Kubota
  • Patent number: 10519106
    Abstract: A compound has inhibitory activity on Discoidin Domain Receptor 1. The compound includes a urea derivative represented by the formula below or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: December 31, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Yukihiro Nishio, Masashi Yamamoto, Yuko Kubota, Hideyuki Tsutsui, Tomohide Masuda, Keiichi Okimura, Syuji Udagawa, Mie Kaino, Hiroyuki Meguro, Yumiko Sekiya
  • Publication number: 20190348625
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 14, 2019
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satomi Mitsumori, Takeyoshi WATABE, Satoshi SEO, Yuko KUBOTA
  • Patent number: 10361388
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: July 23, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satomi Mitsumori, Takeyoshi Watabe, Satoshi Seo, Yuko Kubota
  • Patent number: 10305044
    Abstract: A novel heterocyclic compound is provided. A highly efficient and reliable light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1). In the general formula (G1), any one, two, or three of Y1 to Y4 in a ring A represent N atoms, and the rest of Y1 to Y4 represents CH. In the case where any two or three of the Y1 to Y4 are N atoms, the N atoms are not next to each other. Further, Ar1 represents a substituted or unsubstituted biphenyldiyl group, Ar2 represents a substituted or unsubstituted biphenyldiyl group, Cz1 represents a substituted or unsubstituted heterocyclic group including a carbazole skeleton, Cz2 represents a substituted or unsubstituted heterocyclic group including a carbazole skeleton, the carbazole skeleton included in the Cz1 is directly bonded to the Ar1, and the carbazole skeleton included in the Cz2 is directly bonded to the Ar2.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: May 28, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Yuko Kubota, Tatsuyoshi Takahashi, Satomi Mitsumori
  • Patent number: 10280145
    Abstract: A compound has inhibitory activity on Discoidin Domain Receptor 1. A urea derivative is represented by the formula (I) or a pharmaceutically acceptable salt thereof: wherein, R1 is trifluoromethyl, trifluoromethoxy, or pentafluorosulfanyl; each R2 is independently a hydrogen atom or methyl which is optionally substituted by one hydroxyl or one saturated heterocyclyl having four to six ring-forming atoms; R3 is a hydrogen atom, halogen atom, C1-C3 alkyl, saturated heterocyclyl having four to six ring-forming atoms and optionally having an oxo group, or R5O—; and R4 is phenyl, pyridyl, pyridazinyl, or pyrimidinyl, which phenyl, pyridyl, pyridazinyl, or pyrimidinyl is optionally substituted by one R6.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: May 7, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Yukihiro Nishio, Yuko Kubota, Masashi Yamamoto, Yutaka Nishimura, Tomohide Masuda, Hideyuki Tsutsui, Keiichi Okimura, Syuji Udagawa, Mie Kaino, Hiroyuki Meguro, Yumiko Sekiya
  • Publication number: 20190010117
    Abstract: A compound has inhibitory activity on Discoidin Domain Receptor 1. The compound includes a urea derivative represented by the formula below or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: August 31, 2016
    Publication date: January 10, 2019
    Inventors: Yukihiro Nishio, Masashi Yamamoto, Yuko Kubota, Hideyuki Tsutsui, Tomohide Masuda, Keiichi Okimura, Syuji Udagawa, Mie Kaino, Hiroyuki Meguro, Yumiko Sekiya
  • Patent number: 10153437
    Abstract: Provided is a novel substance that can be used in an element capable of emitting phosphorescence, a novel substance that contributes to high emission efficiency, or a novel substance that contributes to light emission with high color purity. A light-emitting element includes a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a substance including a carbazole skeleton. The substance is bonded to a substituted or unsubstituted first arylene group through a nitrogen atom included in the carbazole skeleton. The first arylene group is bonded to a substituted or unsubstituted benzofuropyridyl group or a substituted or unsubstituted benzothienopyridyl group. The first arylene group includes 1 to 5 substituted or unsubstituted second arylene groups which are bonded to one another. The EL layer may further include a layer including an emission center substance, specifically an iridium compound.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: December 11, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya Hirose, Harue Osaka, Takeyoshi Watabe, Satomi Mitsumori, Yuko Kubota, Satoshi Seo
  • Publication number: 20180237398
    Abstract: A compound has inhibitory activity on Discoidin Domain Receptor 1. A urea derivative is represented by the formula (I) or a pharmaceutically acceptable salt thereof: wherein, R1 is trifluoromethyl, trifluoromethoxy, or pentafluorosulfanyl; each R2 is independently a hydrogen atom or methyl which is optionally substituted by one hydroxyl or one saturated heterocyclyl having four to six ring-forming atoms; R3 is a hydrogen atom, halogen atom, C1-C3 alkyl, saturated heterocyclyl having four to six ring-forming atoms and optionally having an oxo group, or R5O—; and R4 is phenyl, pyridyl, pyridazinyl, or pyrimidinyl, which phenyl, pyridyl, pyridazinyl, or pyrimidinyl is optionally substituted by one R6.
    Type: Application
    Filed: August 31, 2016
    Publication date: August 23, 2018
    Inventors: Yukihiro Nishio, Yuko Kubota, Masashi Yamamoto, Yutaka Nishimura, Tomohide Masuda, Hideyuki Tsutsui, Keiichi Okimura, Syuji Udagawa, Mie Kaino, Hiroyuki Meguro, Yumiko Sekiya
  • Publication number: 20170338436
    Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
    Type: Application
    Filed: May 18, 2017
    Publication date: November 23, 2017
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satomi MITSUMORI, Takeyoshi WATABE, Satoshi SEO, Yuko KUBOTA
  • Publication number: 20160336517
    Abstract: Provided is a novel substance that can be used in an element capable of emitting phosphorescence, a novel substance that contributes to high emission efficiency, or a novel substance that contributes to light emission with high color purity. A light-emitting element includes a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a substance including a carbazole skeleton. The substance is bonded to a substituted or unsubstituted first arylene group through a nitrogen atom included in the carbazole skeleton. The first arylene group is bonded to a substituted or unsubstituted benzofuropyridyl group or a substituted or unsubstituted benzothienopyridyl group. The first arylene group includes 1 to 5 substituted or unsubstituted second arylene groups which are bonded to one another. The EL layer may further include a layer including an emission center substance, specifically an iridium compound.
    Type: Application
    Filed: May 11, 2016
    Publication date: November 17, 2016
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya Hirose, Harue OSAKA, Takeyoshi WATABE, Satomi MITSUMORI, Yuko KUBOTA, Satoshi SEO
  • Publication number: 20160308139
    Abstract: A novel heterocyclic compound is provided. A highly efficient and reliable light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1). In the general formula (G1), any one, two, or three of Y1 to Y4 in a ring A represent N atoms, and the rest of Y1 to Y4 represents CH. In the case where any two or three of the Y1 to Y4 are N atoms, the N atoms are not next to each other. Further, Ar1 represents a substituted or unsubstituted biphenyldiyl group, Ar2 represents a substituted or unsubstituted biphenyldiyl group, Cz1 represents a substituted or unsubstituted heterocyclic group including a carbazole skeleton, Cz2 represents a substituted or unsubstituted heterocyclic group including a carbazole skeleton, the carbazole skeleton included in the Cz1 is directly bonded to the Ar1, and the carbazole skeleton included in the Cz2 is directly bonded to the Ar2.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 20, 2016
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi SEO, Yuko KUBOTA, Tatsuyoshi TAKAHASHI, Satomi MITSUMORI