Patents by Inventor Yuki Nakano

Yuki Nakano 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).

  • Organic electroluminescence device and electronic apparatus
    Patent number: 11552252
    Abstract: An organic electroluminescence device including: an anode, a cathode, and at least one emitting layer between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, the first host material is a compound having at least one deuterium atom, and the emitting layer contains the first host material in the proportion of 1% by mass or more.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: January 10, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Satomi Tasaki, Taro Yamaki, Hiroaki Itoi, Yuki Nakano, Yuichiro Kawamura
  • ORGANIC EL DISPLAY DEVICE, AND ELECTRONIC APPARATUS
    Publication number: 20230006160
    Abstract: An organic EL display device includes an anode and a cathode and includes a blue organic EL device, a green organic EL device, and a red organic EL device. The blue organic EL device includes a first emitting layer. The green organic EL device includes a second emitting layer. The red organic EL device includes a third emitting layer. The organic EL devices include a fourth emitting layer as a common layer. The fourth emitting layer is in direct contact with each of the emitting layers). The first emitting layer contains a compound represented by a formula (1) and having at least one group represented by a formula (11). The fourth emitting layer contains a second compound represented by a formula (2).
    Type: Application
    Filed: November 6, 2020
    Publication date: January 5, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Tetsuya MASUDA, Kengo KISHINO, Kazuki NISHIMURA, Yuki NAKANO, Yuichiro KAWAMURA
  • ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
    Publication number: 20220416170
    Abstract: An organic electroluminescence device includes an anode, a cathode, an emitting layer between the anode and the cathode, and a first hole transporting layer between the anode and the emitting layer, in which the first hole transporting layer is directly adjacent to the emitting layer, the first hole transporting layer contains a first compound represented by formula (1) below, and the first compound has at least one group represented by formula (11) below.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 29, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Kazuki NISHIMURA, Yuki NAKANO
  • ORGANIC ELECTROLUMINESCENT DEVICE CONFIGURED TO EMIT LIGHT WITH HIGH LUMINOUS EFFICIENCY
    Publication number: 20220416171
    Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer and a second emitting layer that are interposed between the anode and the cathode and are in a direct contact with each other, and a first electron transporting layer between the cathode and the first emitting layer and the second emitting layer being in a direct contact with each other. The first emitting layer contains a first compound represented by a formula (1) as a first host material, the first compound having at least one group represented by a formula (11). The second emitting layer contains a second compound represented by a formula (2) as a second host material. The first electron transporting layer contains a third compound represented by a formula (3).
    Type: Application
    Filed: July 1, 2022
    Publication date: December 29, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Kazuki NISHIMURA, Masatoshi SAITO, Tetsuya MASUDA, Yuki NAKANO, Masato NAKAMURA
  • NOVEL COMPOUND, ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC APPARATUS
    Publication number: 20220411437
    Abstract: A compound having structures represented by the following formulas (1) or (2): wherein in the formulas (1) and (2), at least one of R1 to R8 is a deuterium atom.
    Type: Application
    Filed: October 9, 2019
    Publication date: December 29, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • ORGANIC ELECTROLUMINESCENCE ELEMENT, COMPOSITION, POWDER, ELECTRONIC EQUIPMENT, AND NOVEL COMPOUND
    Publication number: 20220393110
    Abstract: An organic electroluminescence device including: a cathode; an anode; and at least one emitting layer disposed between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, wherein the first host material is a compound represented by the following formula (1), the second host material is a compound represented by the following formula (2), and the first host material and the second host material are different compounds.
    Type: Application
    Filed: December 25, 2020
    Publication date: December 8, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yongguk LEE, Ryoji MAEDA, Yuki NAKANO, Hiroaki ITOI
  • ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
    Publication number: 20220380278
    Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer includes, as a first host material, a first compound that includes at least one group represented by a formula (11) below, the first compound being represented by a formula (1) below, the second emitting layer includes a second compound represented by a formula (2) below as a second host material, and the first emitting layer is in direct contact with the second emitting layer. L101 is a single bond or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms. Ar101 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms. mx is 0, 1, 2, 3, 4, or 5.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 1, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Kazuki NISHIMURA, Yuki NAKANO
  • ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC APPARATUS
    Publication number: 20220376183
    Abstract: An organic electroluminescence device, comprising a cathode, an anode, and at least one emitting layer disposed between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, wherein the first host material is a compound represented by the following formula (1), the second host material is a compound represented by the following formula (2), and one or more selected from the group consisting of the compound represented by the formula (1) and the compound represented by the formula (2) have at least one deuterium atom.
    Type: Application
    Filed: December 25, 2020
    Publication date: November 24, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yongguk LEE, Ryoji MAEDA, Yuki NAKANO, Hiroaki ITOI
  • ORGANIC ELECTROLUMINESCENCE ELEMENT AND ELECTRONIC APPARATUS
    Publication number: 20220376191
    Abstract: An organic electroluminescence device includes: an anode; a cathode; a first emitting layer; and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains, as a first host material, a first compound that has at least one group represented by a formula (11A) below and that is represented by a formula (1) below, the second emitting layer contains, as a second host material, a second compound represented by a formula (2) below, and the first emitting layer and the second emitting layer are in direct contact with each other
    Type: Application
    Filed: September 11, 2020
    Publication date: November 24, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Kazuki NISHIMURA, Yuki NAKANO
  • Switching device
    Patent number: 11509240
    Abstract: A switching device according to the present invention is a switching device for switching a load by on-off control of voltage, and includes an SiC semiconductor layer where a current path is formed by on-control of the voltage, a first electrode arranged to be in contact with the SiC semiconductor layer, and a second electrode arranged to be in contact with the SiC semiconductor layer for conducting with the first electrode due to the formation of the current path, while the first electrode has a variable resistance portion made of a material whose resistance value increases under a prescribed high-temperature condition for limiting current density of overcurrent to not more than a prescribed value when the overcurrent flows to the current path.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: November 22, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Yuki Nakano, Hiroyuki Sakairi
  • COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
    Publication number: 20220363638
    Abstract: A compound is represented by a formula (2) below and has at least one group represented by a formula (20) below. In the formula (2): m is 0, 1, 2, or 3, n is 0, 1, 2 or 3, and m+n is an integer of 1 or more.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 17, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Keita SEDA, Ryota TAKAHASHI, Yuki NAKANO, Yuichiro KAWAMURA, Fabrice ECKES
  • Semiconductor device with carbon-density-decreasing region
    Patent number: 11502172
    Abstract: A semiconductor device includes a SiC semiconductor layer that has a carbon density of 1.0×1022 cm?3 or more, a SiO2 layer that is formed on the SiC semiconductor layer and that has a connection surface contiguous to the SiC semiconductor layer and a non-connection surface positioned on a side opposite to the connection surface, a carbon-density-decreasing region that is formed at a surface layer portion of the connection surface of the SiO2 layer and in which a carbon density gradually decreases toward the non-connection surface of the SiO2 layer, and a low carbon density region that is formed at a surface layer portion of the non-connection surface of the SiO2 layer and that has a carbon density of 1.0×1019 cm?3 or less.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: November 15, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Tsunenobu Kimoto, Takuma Kobayashi, Yuki Nakano, Masatoshi Aketa
  • ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
    Publication number: 20220359829
    Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode in which the first emitting layer contains a first compound represented by a formula (1) below as a first host material, the first compound containing at least one group represented by a formula (11) below, the second emitting layer contains a second compound represented by a formula (2) below as a second host material, and the first emitting layer and the second emitting layer are in direct contact with each other.
    Type: Application
    Filed: September 11, 2020
    Publication date: November 10, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Kazuki NISHIMURA, Yuki NAKANO
  • Semiconductor device and semiconductor module
    Patent number: 11495595
    Abstract: The semiconductor device of the present invention includes a semiconductor substrate, a switching element which is defined on the semiconductor substrate, and a temperature sense element which is provided on the surface of the semiconductor substrate independently from the switching element and characterized by being dependent on a temperature.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: November 8, 2022
    Assignee: ROHM CO., LTD.
    Inventor: Yuki Nakano
  • SEMICONDUCTOR DEVICE
    Publication number: 20220352332
    Abstract: A semiconductor device of the present invention includes a semiconductor layer of a first conductivity type having a cell portion and an outer peripheral portion disposed around the cell portion, and a surface insulating film disposed in a manner extending across the cell portion and the outer peripheral portion, and in the cell portion, formed to be thinner than a part in the outer peripheral portion.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 3, 2022
    Inventors: Yuki NAKANO, Ryota NAKAMURA
  • ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
    Publication number: 20220348522
    Abstract: An organic EL device includes a first emitting layer and a second emitting layer, in which the first emitting layer contains a first host material, the second emitting layer contains a second host material, the first and the second host material are mutually different, the first emitting layer and the second emitting layer at least contains a compound that emits fluorescence having a main peak wavelength of 500 nm or less, respectively, the compound contained in the first emitting layer and that emits fluorescence having a main peak wavelength of 500 nm or less is the same as or different from the compound contained in the second emitting layer, and a triplet energy T1(H1) of the first host material and a triplet energy T1(H2) of the second host material satisfy a numerical formula (Numerical Formula 1), T1(H1)>T1(H2)??(Numerical Formula 1).
    Type: Application
    Filed: September 11, 2020
    Publication date: November 3, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Kazuki NISHIMURA, Ryoji MAEDA, Yuichiro KAWAMURA, Yuki NAKANO
  • Organic electroluminescent device configured to emit light with high luminous efficiency
    Patent number: 11489121
    Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer and a second emitting layer that are interposed between the anode and the cathode and are in a direct contact with each other, and a first electron transporting layer between the cathode and the first emitting layer and the second emitting layer being in a direct contact with each other. The first emitting layer contains a first compound represented by a formula (1) as a first host material, the first compound having at least one group represented by a formula (11). The second emitting layer contains a second compound represented by a formula (2) as a second host material. The first electron transporting layer contains a third compound represented by a formula (3).
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: November 1, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Satomi Tasaki, Kazuki Nishimura, Masatoshi Saito, Tetsuya Masuda, Yuki Nakano, Masato Nakamura
  • Organic electroluminescent element emitting light at high luminous effiency and electronic device
    Patent number: 11489128
    Abstract: An organic electroluminescence device includes: a first emitting layer disposed between an anode and a cathode; a second emitting layer disposed between the first emitting layer and the cathode; and an electron blocking layer disposed between the first emitting layer and the anode, in which the first emitting layer and the second emitting layer are in direct contact with each other; the first emitting layer and the electron blocking layer are in direct contact with each other; the first emitting layer includes a first compound represented by a formula (1) below; the first compound includes at least one group represented by a formula (11) below; the second emitting layer includes a second compound represented by a formula (2); the electron blocking layer includes a third compound; and the third compound satisfies a formula (M1) below.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: November 1, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Satomi Tasaki, Kazuki Nishimura, Tasuku Haketa, Ryoji Maeda, Yuki Nakano, Hiroaki Toyoshima
  • Organic electroluminescence device and electronic apparatus
    Patent number: 11482675
    Abstract: An organic electroluminescence device comprising: an anode, a cathode, and an emitting region between the anode and the cathode, wherein the emitting region comprises a first emitting layer and a second emitting layer, the first emitting layer and the second emitting layer are directly adjacent to each other, the first emitting layer is between the anode and the second emitting layer, and one of the first emitting layer and the second emitting layer comprises a compound having at least one deuterium atom.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: October 25, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Satomi Tasaki, Taro Yamaki, Hiroaki Itoi, Yuki Nakano, Yuichiro Kawamura, Ryoji Maeda, Kazuki Nishimura, Yongguk Lee
  • SEMICONDUCTOR DEVICE
    Publication number: 20220336598
    Abstract: A semiconductor device includes a chip, an electrode that is formed on the chip, an inorganic insulating layer that covers the electrode and has a first opening exposing the electrode, an organic insulating layer that covers the inorganic insulating layer, has a second opening surrounding the first opening at an interval from the first opening, and exposes an inner peripheral edge of the inorganic insulating layer in a region between the first opening and the second opening, and an Ni plating layer that covers the electrode inside the first opening and covers the inner peripheral edge of the inorganic insulating layer inside the second opening.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 20, 2022
    Inventors: Takaaki YAMANAKA, Yuki NAKANO, Kenji YAMAMOTO