Patents by Inventor Masayuki Kanehiro

Masayuki Kanehiro 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).

  • Publication number: 20220037609
    Abstract: A display device includes an anode electrode a cathode electrode a light-emitting layer, and an electron transport layer. The light-emitting layer is provided between the anode electrode and the cathode electrode. The electron transport layer is provided between the cathode electrode and the light-emitting layer. The electron transport layer includes a nanoparticle of a metal oxide, and an organic modifier configured to cover a surface of the nanoparticle and having electron donating characteristics.
    Type: Application
    Filed: December 11, 2018
    Publication date: February 3, 2022
    Inventors: HISAYUKI UTSUMI, YOUHEI NAKANISHI, MASAYUKI KANEHIRO, SHOTA OKAMOTO, HIROKI IMABAYASHI
  • Patent number: 11217763
    Abstract: To provide a light-emitting device that can obtain fluorescence having a narrow spectrum more efficiently, a light-emitting device includes: a light-emitting layer in which thermally activated delayed fluorescence bodies and quantum dots are dispersed; a first electrode in a lower layer than the light-emitting layer; and a second electrode in an upper layer than the light-emitting layer, wherein a light emission spectrum of the thermally activated delayed fluorescence bodies and an absorption spectrum of the quantum dots at least partially overlap each other.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: January 4, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuto Tsukamoto, Shinichi Kawato, Tokiyoshi Umeda, Manabu Niboshi, Youhei Nakanishi, Hisayuki Utsumi, Masayuki Kanehiro, Shota Okamoto
  • Publication number: 20210343989
    Abstract: A display device (500) includes a sub-pixel (100) including a light-emitting element layer (10). The sub-pixel (100) includes: a first electrode (12); an edge cover (11); a projection (15) projecting from the front face of the first electrode (12); and a functional layer (13). With respect to the front face of the first electrode (12) where a first height (h1) is a height up to a front face of a protrusion of the functional layer (13) provided along an edge of the projection (15), a second height (h2) is a height up to a tip of the projection (15), and a third height (h3) is a height up to a front face of the edge cover (11), the second height (h2) is greater than the first height (h1) and smaller than the third height (h3).
    Type: Application
    Filed: September 28, 2018
    Publication date: November 4, 2021
    Inventors: HIROKI IMABAYASHI, SHOTA OKAMOTO, YOUHEI NAKANISHI, MASAYUKI KANEHIRO, HISAYUKI UTSUMI
  • Publication number: 20210273189
    Abstract: Provided is a light-emitting device including a light-emitting element including a first electrode, a second electrode, and a quantum dot layer between the first electrode and the second electrode, wherein, in the quantum dot layer, quantum dots each including a core, a shell covering the core, and a ligand coordinated with a surface of the shell and having defect compensation properties are layered.
    Type: Application
    Filed: July 24, 2018
    Publication date: September 2, 2021
    Inventors: HIROKI IMABAYASHI, MASAYUKI KANEHIRO, HISAYUKI UTSUMI, SHOTA OKAMOTO, YOUHEI NAKANISHI, TATSUYA RYOHWA, KANAKO NAKATA
  • Publication number: 20210135137
    Abstract: To provide a light-emitting device that easily generates energy transition to fluorescent materials having a peak of the light emission spectrum in the deep-blue region and has improved efficiency of light emission, provided is a light-emitting device including a light-emitting layer in which quantum dots and light emitters being phosphors or phosphorescent members are dispersed, a first electrode in a lower layer than the light-emitting layer, and a second electrode in an upper layer than the light-emitting layer, wherein a light emission spectrum of the quantum dots and an absorption spectrum of the light emitters at least partially overlap each other.
    Type: Application
    Filed: September 5, 2017
    Publication date: May 6, 2021
    Inventors: YUTO TSUKAMOTO, SHINICHI KAWATO, TOKIYOSHI UMEDA, MANABU NIBOSHI, YOUHEI NAKANISHI, HISAYUKI UTSUMI, MASAYUKI KANEHIRO, SHOTA OKAMOTO
  • Publication number: 20210126216
    Abstract: Alight-emitting element includes an anode electrode, a cathode electrode, a light-emitting layer, a positive hole transport layer, and an electron transport layer. The light-emitting layer, the positive hole transport layer, and the electron transport layer are provided between the anode electrode and the cathode electrode. The light-emitting layer includes QD phosphor particles, a positive hole transport substance configured to transport positive holes transported thereto by the positive hole transport layer, an electron transport substance configured to transport electrons transported thereto by the electron transport layer, and a photosensitive host material.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 29, 2021
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tokiyoshi UMEDA, Yuto TSUKAMOTO, Masayuki KANEHIRO, Youhei NAKANISHI
  • Publication number: 20210119160
    Abstract: A light-emitting element includes a light-emitting layer, a hole transportation layer, and an electron transportation layer. The light-emitting layer includes a quantum dot dopant, and a host formed of a hole transport host and an electron transport host. The quantum dot dopant emits light as a result of exciton energy generated in the host transitioning to the quantum dot dopant.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 22, 2021
    Inventors: TOKIYOSHI UMEDA, YUTO TSUKAMOTO, MASAYUKI KANEHIRO, YOUHEI NAKANISHI
  • Patent number: 10957815
    Abstract: To provide a light-emitting device for achieving fluorescence emission with higher efficiency and longer life, a light-emitting device includes an exciton generation layer in which quantum dots are dispersed, a light-emitting layer in which light emitters, which are phosphors or phosphorescent members, are dispersed, the light-emitting layer adjoining the exciton generation layer in a vertical direction, a first electrode located on a lower side of the exciton generation layer and the light-emitting layer, and a second electrode located on an upper side of the exciton generation layer and the light-emitting layer, and the light emission spectrum of the quantum dots and the absorption spectrum of the light emitters at least partially overlap.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: March 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuto Tsukamoto, Shinichi Kawato, Tokiyoshi Umeda, Manabu Niboshi, Youhei Nakanishi, Hisayuki Utsumi, Masayuki Kanehiro, Shota Okamoto
  • Publication number: 20210066630
    Abstract: To provide a light-emitting device that can obtain fluorescence having a narrow spectrum more efficiently, a light-emitting device includes: a light-emitting layer in which thermally activated delayed fluorescence bodies and quantum dots are dispersed; a first electrode in a lower layer than the light-emitting layer and a second electrode in an upper layer than the light-emitting layer, wherein a light emission spectrum of the thermally activated delayed fluorescence bodies and an absorption spectrum of the quantum dots at least partially overlap each other.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 4, 2021
    Inventors: YUTO TSUKAMOTO, SHINICHI KAWATO, TOKIYOSHI UMEDA, MANABU NIBOSHI, YOUHEI NAKANISHI, HISAYUKI UTSUMI, MASAYUKI KANEHIRO, SHOTA OKAMOTO
  • Publication number: 20210024823
    Abstract: A QD particle dispersion contains a surface modification compound that protects a surface of QD phosphor particles dispersed in a solvent. The surface modification compound includes a heteroatom-containing functional group and a chain-type saturated hydrocarbon group. The QD particle dispersion is configured such that the absolute value of a difference between the surface free energy of an underlayer that provides a foundation for forming a QD layer in the light-emitting element and the surface free energy of the QD layer is 5 mN/m or less.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 28, 2021
    Inventors: KANAKO NAKATA, TATSUYA RYOHWA, HIROSHI FUKUNAGA, MAKOTO IZUMI, YOUHEI NAKANISHI, HISAYUKI UTSUMI, MASAYUKI KANEHIRO
  • Publication number: 20200411785
    Abstract: To efficiently prevent oxidation of quantum dots in a light-emitting device including the quantum dots, a light-emitting device including a first electrode, a second electrode, and a quantum dot layer between the first electrode and the second electrode, in which quantum dots including a core, a shell covering the core, and a ligand coordinated with a surface of the shell and having an antioxidant property are stacked in the quantum dot layer, is provided.
    Type: Application
    Filed: March 7, 2018
    Publication date: December 31, 2020
    Inventor: MASAYUKI KANEHIRO
  • Patent number: 10866446
    Abstract: A method of producing a liquid crystal panel includes a grinding process and a sealing process. The grinding process includes grinding at least one common liquid crystal panel including a liquid crystal layer, a pair of boards that sandwich the liquid crystal layer, and a frame-shaped sealing member sandwiched between the boards along the non-rectangular outline to remove a section of the sealing member and to leave a rest of the sealing member. The grinding process further includes forming a sealing member removed processed edge section of the common liquid crystal panel. The sealing member removed processed edge section includes edges of the boards corresponding to the section of the sealing member removed from the common liquid crystal panel. The sealing process includes applying a sealing resin to the sealing member removed processed edge section to fill a space between the edges of the board.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 15, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masayuki Kanehiro, Youhei Nakanishi
  • Publication number: 20200381585
    Abstract: To provide a light-emitting device for achieving fluorescence emission with higher efficiency and longer life, a light-emitting device includes an exciton generation layer in which quantum dots are dispersed, a light-emitting layer in which light emitters, which are phosphors or phosphorescent members, are dispersed, the light-emitting layer adjoining the exciton generation layer in a vertical direction, a first electrode located on a lower side of the exciton generation layer and the light-emitting layer, and a second electrode located on an upper side of the exciton generation layer and the light-emitting layer, and the light emission spectrum of the quantum dots and the absorption spectrum of the light emitters at least partially overlap.
    Type: Application
    Filed: September 5, 2017
    Publication date: December 3, 2020
    Inventors: Yuto TSUKAMOTO, Shinichi KAWATO, Tokiyoshi UMEDA, Manabu NIBOSHI, Youhei NAKANISHI, Hisayuki UTSUMI, Masayuki KANEHIRO, Shota OKAMOTO
  • Patent number: 10725355
    Abstract: An object of the present invention is to enhance a display quality of a liquid crystal display panel by causing a contour of a display region not to be noticeable. A display region of a liquid crystal display panel (100) includes a normal display region (101a) and a boundary display region (101c), an image being displayed more darkly in the boundary display region (101c), which is in contact with a black light blocking part (101b), than in the normal display region (101a).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: July 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masayuki Kanehiro, Youhei Nakanishi
  • Publication number: 20200174299
    Abstract: A display device according to the present invention includes: a first substrate; a second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a light wavelength conversion layer disposed over the second substrate; a first polarizing plate disposed under the first substrate; a second polarizing plate disposed between the second substrate and the light wavelength conversion layer; and an optical compensation member disposed between the first substrate and the first polarizing plate and/or between the second substrate and the second polarizing plate.
    Type: Application
    Filed: July 30, 2018
    Publication date: June 4, 2020
    Inventors: YOUHEI NAKANISHI, MASAYUKI KANEHIRO
  • Publication number: 20200136075
    Abstract: With the purpose of providing a light-emitting layer that is suitable for mass production and a light-emitting device having the light-emitting layer, without including a high-temperature process, there is provided a light-emitting device having: a light-emitting layer formed of a photosensitive material, in which quantum dots are dispersed; a first electrode of a lower layer than the light-emitting layer; and a second electrode of a higher layer than the light-emitting layer.
    Type: Application
    Filed: June 15, 2018
    Publication date: April 30, 2020
    Inventors: MASAYUKI KANEHIRO, TAKESHI ISHIDA, YOUHEI NAKANISHI, SHOTA OKAMOTO
  • Patent number: 10620483
    Abstract: A method of producing a liquid crystal panel 10 having a non-quadrangular outline includes a common liquid crystal panel producing process, a cutting process of cutting the common liquid crystal panel 50 along a cutting line L10 that is along the outline such that a part of the sealing material 54 is removed and a remaining part of the sealing material 54 remains and forming on the common liquid crystal panel 50 a sealing material removed edge portion 50A at which the part of the sealing material 54 is removed to expose the liquid crystal layer 51, a line correction process of correcting the lines 55, 56, 59 near the processed edge portion 53E of the array substrate 53, and a sealing process of providing sealing resin R on the sealing material removed edge portion 50A to close a space between the processed edge portions 52E, 53E of the substrates and seal the liquid crystal layer 51 with the remaining part of the sealing material 54.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 14, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Youhei Nakanishi, Masayuki Kanehiro, Shota Okamoto, Shinsuke Maeda
  • Patent number: 10578941
    Abstract: In the present disclosure, regions where a short circuit may have occurred due to dividing are isolated from a display region. In a gate line (13G) of an nth row, a gate line detour section (50G) that is provided corresponding to an intersection (CG,n,m) with a source line (15S) of an mth column has: a start section (51G) which is bent toward the ?Y direction from a start position (XG,m(1), YG,n) that is in the ?X direction relative to the intersection; and straddling sections (52G) which straddle a straight line (X=XS,m+dS/2) that passes through a +X direction end of the intersection and extends in the Y axis direction.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 3, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shota Okamoto, Youhei Nakanishi, Masayuki Kanehiro
  • Publication number: 20190320517
    Abstract: In a light-emitting apparatus, a blue light-emitting layer provided between the anode electrode and the cathode electrode includes blue QD phosphor particles emitting the first blue light by electro-luminescence. The light-emitting apparatus further includes a blue phosphor layer which receives the first blue light and emits a second blue light (a blue light with a longer peak wavelength than the first blue light).
    Type: Application
    Filed: September 29, 2017
    Publication date: October 17, 2019
    Inventors: Youhei NAKANISHI, Masayuki KANEHIRO
  • Patent number: 10444560
    Abstract: A method of producing display panels of collectively producing a plurality of display panels each including a contour line of an outer shape, at least a section of which is curved includes a bonding process of forming a bonded substrate by bonding a pair of substrates including a plurality of thin film patterns formed on at least one substrate, a stacking process of stacking a plurality of bonded substrates and pinching and holding the plurality of stacked bonded substrates in a stacking direction using a jig, and a grinding process of collectively forming end surfaces of the plurality of display panels forming the curved contour line by collectively grinding the pair of substrates located outside the thin film pattern among stacked bonded substrates along the outer shape in a state in which the plurality of stacked bonded substrate are pinched by the jig.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: October 15, 2019
    Assignees: SHARP KABUSHIKI KAISHA, TECNISCO, LTD.
    Inventors: Masayuki Kanehiro, Youhei Nakanishi, Takuya Amada, Koji Hashimoto, Hokichi Yoshioka