Patents Assigned to Sumitomo Electric
  • Connector
    Patent number: 11322876
    Abstract: A connector is provided with a housing, a plurality of first terminal fittings, and a plurality of second terminal fittings. The terminal fittings are press-fitted from a rear side of press-fit holes of the housing and arranged to be parallel in a left-right direction. A first projecting part is formed on both left and right edge parts of each of the first terminal fittings, and a second projecting part is formed on both left and right edge parts of each of the second terminal fittings. Each of the projecting parts has a shape where only a portion of the terminal fitting in a length direction projects in the left-right direction, and a pressing surface that is pressed by a jig during press-fitting is formed. The projecting parts of adjacent terminal fittings are arranged such that formation positions thereof are not aligned in the front-rear direction.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: May 3, 2022
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Pipatthana Phatiwuttipat, Yasuo Omori
  • Optical amplifier and multi-core optical fiber
    Patent number: 11322904
    Abstract: An optical amplifier is provided in which adjacent ones of a plurality of cores each containing a rare-earth element and included in an amplifying multi-core optical fiber (MCF) serve as coupled cores at an amplifying wavelength, a connecting MCF is connected to the amplifying MCF, a pump light source is connected to the connecting MCF, and the pump light source pumps the rare-earth element in the amplifying MCF through the connecting MCF.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: May 3, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takemi Hasegawa, Hirotaka Sakuma, Tetsuya Hayashi
  • Silicon carbide substrate and silicon carbide epitaxial substrate
    Patent number: 11322349
    Abstract: A TTV of the silicon carbide substrate is less than or equal to 3 ?m. The first main surface includes a first central region surrounded by a square having each side of 90 mm. An intersection of diagonal lines of the first central region coincides with a center of the first main surface. The first central region is constituted of nine square regions each having each side of 30 mm. A maximum LTV among the nine square regions is less than or equal to 1 ?m. An arithmetic mean roughness Sa in a second central region is less than or equal to 0.1 nm, the second central region being surrounded by a square centering on the intersection and having each side of 250 ?m.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: May 3, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tsubasa Honke, Kyoko Okita
  • Cooling member and power storage module
    Patent number: 11322784
    Abstract: A cooling member includes refrigerant, an absorbing member absorbing the refrigerant, an enclosing member including flexible sheet members, that are connected to each other and enclosing the refrigerant and the absorbing member in a sealed state, and a heat releasing section configured to receive heat from the enclosing member and release the heat to an outside.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: May 3, 2022
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hideyuki Kuboki, Hiroki Hirai, Makoto Higashikozono, Akihisa Hosoe, Tomoharu Takeyama, Yoshiyuki Hirose
  • Current flow control device
    Patent number: 11323113
    Abstract: A current flow control device includes a plurality of semiconductor switches disposed between a power source and a load and that are connected in parallel with each other, and the current flow control device being configured to control the flow of current between the power source and the load by turning on and off the semiconductor switches. The plurality of semiconductor switches include a first and a second semiconductor switch. The current flow control device includes a driving circuit configured to apply, to the first semiconductor switch, a voltage that is higher than a voltage output from the power source, to turn on the first semiconductor switch, a switch control unit configured to turn on the second semiconductor switch, and a resistor that is connected in series with a terminal on the power source side of the second semiconductor switch, the resistor lowering a voltage applied to the terminal.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 3, 2022
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Hideo Morioka
  • Optical connection component
    Patent number: 11320604
    Abstract: An optical connection component includes: a glass plate formed of a glass material capable of transmitting ultraviolet rays, the glass plate having a first surface, a second surface opposite to the first surface, and one or a plurality of first through holes penetrating from the first surface to the second surface; a resin ferrule fixed to the first surface of the glass plate and having one or a plurality of second through holes each having a central axis coaxial with the central axis of the one or a plurality of first through holes; and one or a plurality of optical fibers including a glass fiber and a resin coating covering the outer periphery of the glass fiber, wherein the glass fiber exposed from the resin coating at the tip end of each of the one or a plurality of optical fibers is received in the one or a plurality of first through holes and the one or a plurality of second through holes.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: May 3, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Tetsuya Nakanishi
  • Gallium arsenide single crystal substrate
    Patent number: 11319646
    Abstract: The gallium arsenide single crystal substrate has a circular main surface, and when the diameter of the main surface of the gallium arsenide single crystal substrate is represented by D and the number of etch pits formed on the main surface by immersing the gallium arsenide single crystal substrate in molten potassium hydroxide at 500° C. for 10 minutes is counted, the number C1 of etch pits in a first circular region having a diameter of 0.2D around the center of the main surface is 0 or more and 10 or less.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: May 3, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hiroshi Fukunaga, Masanori Morishita, Tatsuya Moriwake, Katsushi Hashio
  • Optical fiber cleaver and optical fiber cleaving method
    Patent number: 11320593
    Abstract: An optical fiber cleaver includes: a body unit on which an optical fiber extending in a first direction is loaded; a lid unit connected to the body unit to be rotatable and openable; a pair of retainers arranged to be separate from each other in the first direction and retain the optical fiber between the pair of retainers when the lid unit is closed with respect to the body unit; a blade member that comes into contact with the optical fiber from one direction side of a second direction intersecting the first direction between the pair of retainers and hurt the optical fiber; and a movement unit that brings the blade member into contact with the optical fiber from the one direction side of the second direction and move the blade member to one direction side of a third direction intersecting the first direction and the second direction.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 3, 2022
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., JAPAN COMMUNICATION ACCESSORIES MANUFACTURING CO., LTD.
    Inventors: Motoyoshi Kimura, Daizo Nishioka, Yusuke Takai, Kazuyuki Miwa, Tsuyoshi Imaizumi
  • OPTICAL DEVICE
    Publication number: 20220128777
    Abstract: Disclosed is an optical device including a first lens and a second lens. The first lens of the optical device is joined to an end surface of an optical waveguide of an optical element to emit light emitted from the optical element. The second lens is optically coupled with the first lens to convert the light emitted from the first lens into collimated light.
    Type: Application
    Filed: October 21, 2021
    Publication date: April 28, 2022
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Manabu Shiozaki, Tomoya Saeki, Katsumi Uesaka
  • HIGHER HARMONICS PROCESSING CIRCUIT AND AMPLIFIER
    Publication number: 20220131504
    Abstract: A harmonic processing circuit includes: a feeder line configured to feed power to an amplifying device; and a harmonic processing unit connected to the feeder line, and configured to perform harmonic processing to a harmonic of a signal outputted from the amplifying device. The feeder line is connected to a fundamental wave matching circuit that is connected to the amplifying device and performs matching with respect to a fundamental wave of the signal.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 28, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Noriyoshi SUDA
  • ELECTRICAL INSULATION COMPOSITION AND POWER CABLE
    Publication number: 20220130571
    Abstract: An electrical insulation composition includes a base resin containing 65 parts by mass or more and 98 parts by mass or less of a polyethylene and 2 parts by mass or more and 35 parts by mass or less of a styrene-containing resin, the polyethylene and the styrene-containing resin totaling 100 parts by mass, and 0.05 parts by mass or more and 1.0 parts by mass or less of a fatty acid amide.
    Type: Application
    Filed: January 10, 2020
    Publication date: April 28, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Satoshi YAMASAKI, Takanori YAMAZAKI
  • SEMICONDUCTOR OPTICAL DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20220131344
    Abstract: A semiconductor optical device in which a light emitting region that emits light and a reflecting region that reflects the light to the light emitting region side are integrated includes a core layer that is provided in the light emitting region, and a waveguide layer that is provided in the reflecting region, that is optically coupled to the core layer, and that has a band gap that is larger than energy of the light. The reflecting region has a first thyristor that overlaps the waveguide layer in a direction that intersects a propagation direction of the light.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 28, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Naoki FUJIWARA, Akira FURUYA, Naoya KONO
  • WINDING DEVICE AND WINDING METHOD
    Publication number: 20220127104
    Abstract: This winding device includes: a bobbin for winding an optical fiber, the bobbin being a striated body; a cover that covers the outer periphery of the bobbin, the cover having provided thereto a slit that is parallel to the axial direction of the bobbin, and the optical fiber being inserted through the slit; and a roller for directly guiding the optical fiber to the bobbin. In accordance with the bobbin winding barrel diameter of the optical fiber on the bobbin, the bobbin and the roller are caused to move relatively, or the position of the slit in the cover is caused to move in the circumferential direction.
    Type: Application
    Filed: January 15, 2020
    Publication date: April 28, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takahiro SAITO, Iwao OKAZAKI, Ryutarou MIYAZAKI, Yoshihiro MORIMOTO, Masayuki KATO
  • SEMICONDUCTOR DEVICE
    Publication number: 20220130792
    Abstract: A semiconductor includes: a substrate; a circuit pattern on the substrate, and including a first region, a second region located away from the first region, and a third region between the first region and the second region; a first chip disposed in the second region and including a diode; a second chip disposed in the third region, the second chip including a vertical transistor having a source pad disposed on a surface opposite to a surface facing the third region in a thickness direction of the substrate, and a gate pad disposed at a position different from the source pad; a first wire including a first bonded portion bonded to the first region, a second bonded portion bonded to the second chip, and a third bonded portion bonded to the first chip; and a second wire arranged to be adjacent to the first wire with the gate pad sandwiched therebetween.
    Type: Application
    Filed: January 21, 2020
    Publication date: April 28, 2022
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Tatsushi KANEDA, Hirotaka OOMORI, Ren KIMURA, Toru HIYOSHI
  • Redox flow battery cell and redox flow battery
    Patent number: 11316170
    Abstract: A redox flow battery cell includes: an electrode to which an electrolyte solution is supplied; and a bipolar plate with which the electrode is arranged, wherein the bipolar plate has at least one groove portion through which the electrolyte solution flows, on a face on the electrode side, the electrode is made of a carbon fiber aggregate containing carbon fibers, and has a buried portion that is pressed toward the bipolar plate side and buried into the groove portion, and an amount of burial of the buried portion is not less than 0.2 mm and not more than 1.4 mm.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yuta Ochi, Kenichiro Miyatake, Takashi Kanno
  • Surface-coated cutting tool and method for manufacturing same
    Patent number: 11311945
    Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other, the first AlTi compound and the third AlTi compound have a hexagonal crystal structure, the second AlTi compound and the fourth AlTi compound have a cubic crystal structure.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 26, 2022
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Anongsack Paseuth, Yasuki Kido, Susumu Okuno, Shinya Imamura
  • Multi-core optical fiber
    Patent number: 11314015
    Abstract: An MCF according to the disclosure has a structure preventing deterioration in quality of optical transmission signals. The MCF comprises cores, a common cladding, and a coating. Any of the cores has a coating leakage loss of 0.01 dB/km or more at a wavelength within a wavelength range of from 850 nm to 1700 nm. The coating includes a leaked light propagation suppressive coating layer having a first optical property or a second optical property to light with a wavelength within a wavelength range of from 850 nm to 1700 nm or from 1260 nm to 1625 nm. The first optical property is defined by, as an attenuation index of the light, an absorbance per 1 ?m thickness being 0.1 dB or more. The second optical property is defined by a product of absorbance per 1 ?m thickness and a thickness being 0.1 dB or more.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tetsuya Hayashi, Takuji Nagashima
  • On-board power control apparatus and on-board power control system
    Patent number: 11312321
    Abstract: The present disclosure provides a configuration that can determine whether to suppress the power consumption of a load based on the state of a battery, and reduce the duty ratio to be supplied to a switch unit that is provided on a power supply path to the load, when the power consumption is to be suppressed. In an on-board power control apparatus, when a determination unit determines that a prediction value of an output voltage of a battery is less than a threshold voltage value, a duty ratio setting unit selects at least one of the plurality of loads as a target load for which power supply is to be stopped or suppressed, and the duty ratio setting unit resets duty ratios to reduce a duty ratio of a control signal to be output to a switch unit provided on a power supply path to the selected target load.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: April 26, 2022
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Shinichiro Sato
  • Fuel cell and method of manufacturing metal porous body
    Patent number: 11316172
    Abstract: A fuel cell according to the present disclosure includes a flat plate-shaped metal porous body having a framework of a three-dimensional network structure as a gas diffusion layer. The framework is made of metal or alloy. In the metal porous body, a ratio of an average pore diameter in a direction parallel to a gas flow direction to an average pore diameter in a direction perpendicular to the gas flow direction is greater than or equal to 1.4 and less than or equal to 2.5.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO ELECTRIC TOYAMA CO., LTD.
    Inventors: Hitoshi Tsuchida, Junichi Nishimura, Seiji Mabuchi
  • Optical transceiver
    Patent number: 11314025
    Abstract: An optical transceiver that is hot-pluggable to an external device includes: an IC-TROSA including first to third internal fibers extending from a first surface of a package on a side opposite to the device in the first direction; a first substrate on which the IC-TROSA is mounted; a second substrate electrically connected to a light source and the first substrate and to which the light source is attached to generate reference light; a first sleeve provided on the second internal fiber; a second sleeve provided on the third internal fiber; and a fiber tray in which the substrates are mounted in an upper portion and the fibers are housed in a lower portion by being bent greater than a predetermined radius of curvature. The second substrate is arranged between the first and second sleeves and the first substrate in the first direction.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Takashi Matsui