Patents by Inventor Shinya Nishikawa

Shinya Nishikawa 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: 20190318847
    Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
  • Publication number: 20190318846
    Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
  • Patent number: 10439384
    Abstract: The heat-recoverable article according to the present invention has a cylindrical shape and includes a base material layer. The base material layer contains a polyolefin-based resin. In the base material layer after being heated at 180° C. for 2 minutes, a melting-point peak temperature is 115° C. or higher and 128° C. or lower, a heat of fusion of a total resin component is 80 J/g or more and 150 J/g or less, a storage modulus at 120° C. is 4 MPa or more, a gel fraction is 40% by mass or more and 80% by mass or less, and a storage modulus at 180° C. is 0.5 MPa or more and less than 3.0 MPa. The polyolefin-based resin is preferably a mixture of a first polyolefin-based resin having a melting point of 125° C. or higher and 135° C. or lower and a second polyolefin-based resin having a melting point of lower than 125° C.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 8, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Satoshi Yamasaki, Shinya Nishikawa, Yasutaka Emoto, Mamoru Sekiguchi
  • Publication number: 20190300756
    Abstract: A resin composition according to an embodiment of the present invention for a flat cable-reinforcing tape contains a polyester, a polyurethane, and a polycarbodiimide, in which the mass ratio of the polyurethane to the polyester is 40/60 or more and 80/20 or less. A flat cable-reinforcing tape according to an embodiment of the present invention includes a base layer containing a resin as a main component and an adhesive layer stacked on the base layer, the adhesive layer containing the resin composition. A flat cable according to an embodiment of the present invention includes one or a plurality of conductors, a pair of covering materials that hold the one or plurality of conductors therebetween, and the flat cable-reinforcing tape.
    Type: Application
    Filed: May 23, 2017
    Publication date: October 3, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Yutaka FUKUDA, Shinya NISHIKAWA, Shoei YONEZAWA, Tatsuo MATSUDA
  • Patent number: 10418150
    Abstract: A core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 to 2,450.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: September 17, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki Tanaka, Shinya Nishikawa, Hiroyuki Okawa, Takaya Kohori, Yuhei Mayama, Takayuki Hirai
  • Patent number: 10388432
    Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: August 20, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki Tanaka, Shinya Nishikawa, Hiroyuki Okawa, Takaya Kohori, Yuhei Mayama, Takayuki Hirai
  • Patent number: 10388433
    Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: August 20, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki Tanaka, Shinya Nishikawa, Hiroyuki Okawa, Takaya Kohori, Yuhei Mayama, Takayuki Hirai
  • Patent number: 10381128
    Abstract: A flame-retardant flexible polymer composition includes a polymer component that contains 98 to 80 parts by mass of a chlorinated polyethylene and 2 to 20 parts by mass of a polyolefin polymer; and calcium hydroxide particles having a surface containing calcium silicate, wherein a content of the particles relative to 100 parts by mass of the polymer component is 5 parts by mass or more and 20 parts by mass or less. A polymer tube is formed from the flame-retardant flexible polymer composition. An insulated wire includes an insulation formed from the flame-retardant flexible polymer composition.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: August 13, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Taro Fujita, Shinya Nishikawa, Hayato Aoi, Ryohei Fujita
  • Patent number: 10353342
    Abstract: There is provided a medium cooling apparatus. A first cooling unit cools a medium by absorbing heat from the medium when the medium is in contact with an outer surface of the first cooling unit. A second cooling unit is arranged on the downstream side from the first cooling unit in a medium conveyance direction, and cools the medium by absorbing heat from the medium when the medium is in contact with an outer surface of the second cooling unit, and is set such that an amount of heat absorption is smaller than an amount of heat absorption of the first cooling unit.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: July 16, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoru Nishikawa, Teruki Kishimoto, Takashi Saeki, Keijiro Hamaba, Shinji Kawashima, Yasunori Momomura, Shinya Mitorida
  • Publication number: 20190198193
    Abstract: An object of the present disclosure is to provide a core electric wire for a multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for a multi-core cable according to an aspect of the present disclosure comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, wherein a linear expansion coefficient C of the insulating layer at from 25° C. to ?35° C. is no less than 1×10?5 K?and no greater than 2.5×10?4 K?1.
    Type: Application
    Filed: January 29, 2019
    Publication date: June 27, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
  • Patent number: 10329737
    Abstract: An output command calculating section (40) of an HCU (36) restricts a battery discharge power from an electricity storage device (31) based upon a battery electricity storage rate (SOC) and a current square integrating rate (Risc) of the electricity storage device (31). Thereby, the HCU (36) transfers from a normal mode (NMODE) to a low speed mode (LSMODE) to lower a movement speed of a hydraulic actuator. A monitor display amount calculating section (50) of the HCU (36) calculates a maximum speed reduction rate (DRs) based upon a battery discharge power limit value (Plim0) and an engine output upper limit value (Pemax) from the output command calculating section (40). A monitor device (39) displays a reduction rate of the movement speed of the hydraulic actuator in the low speed mode (LSMODE) based on the maximum speed reduction rate (DRs).
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: June 25, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Masafumi Hita, Shinya Imura, Shinji Nishikawa
  • Publication number: 20190186105
    Abstract: A work machine includes directional control valves 43 and 44 each controlling a direction and a flow rate of a pressurized fluid supplied to each a boom cylinder 32 and a bucket cylinder 36; operation amount sensors 51a, 52a, and 52b detecting operation amounts of operation devices 51 and 52; a variable flow control valve 45 that can restrict the flow rate of the pressurized fluid in a meter-in passage of the directional control valve 44 related to the bucket cylinder 36; and a controller 60 controlling the variable flow control valve on the basis of the detection results by the operation amounts from the operation amount sensors, and the controller changes over an action mode to any one of a normal mode for restricting the flow rate of the pressurized fluid by the variable flow control valve and a responsiveness priority mode for not restricting the flow rate of the pressurized fluid by the variable flow control valve in response to the detection results of the operation amounts of the plurality of operation
    Type: Application
    Filed: May 9, 2017
    Publication date: June 20, 2019
    Inventors: Shinya IMURA, Hiroaki AMANO, Shinji NISHIKAWA, Masafumi HITA
  • Publication number: 20190181663
    Abstract: A smoothing unit smooths a detected voltage of each power storage block based on previous data during a certain period. A calculator calculates a difference between a smoothing voltage of one power storage block in the n power storage blocks and a representative value of the smoothing voltages of the other power storage blocks or all the power storage blocks. A determination unit determines a power storage block whose difference against the representative value enlarges more than or equal to a set value during a predetermined period as a power storage block containing an abnormal power storage cell.
    Type: Application
    Filed: February 13, 2019
    Publication date: June 13, 2019
    Inventors: SHINYA NISHIKAWA, YUSUKE ITAKURA, TAKASHI IIDA
  • Patent number: 10316866
    Abstract: A hydraulic excavator is equipped with: an arm cylinder driven by a hydraulic working fluid from a hydraulic pump; a meter-out passage through which the hydraulic working fluid discharged from the arm cylinder flows; a control valve controlling the hydraulic fluid flow rate of the meter-out passage; a pressure sensor detecting a load acting on the arm cylinder; a pressure sensor detecting an operation amount of an operation device operating the arm cylinder; and a controller. The controller alternatively selects a normal operation mode in which the opening area of the control valve is controlled based on an actuator load and the operation amount, and a substitution operation mode in which the opening area of the control valve is controlled based on the operation amount. When the substitution operation mode is selected, a delivery flow rate of the hydraulic pump is further increased as compared with the normal operation mode.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: June 11, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hiroaki Amano, Shinya Imura, Ryouhei Yamashita, Shinji Nishikawa
  • Publication number: 20190172610
    Abstract: A twinax cable 100 includes a twinax structure, the twinax structure including: a signal wire pair, the signal wire pair including a pair of signal wires formed of a first signal wire and a second signal wire, and an insulating layer configured to cover the pair of signal wires; a drain wire; and a shield tape arranged on the outer circumferential side of the insulating layer to cover the signal wire pair and the drain wire. The insulating layer is mainly composed of polyethylene. The insulating layer includes not less than 30 ppm and not more than 4000 ppm of a hindered phenol-based antioxidant. A dielectric tangent tan ? of the insulating layer at the time of application of a high-frequency electric field having a frequency of 10 GHz is not more than 3.0×10?4.
    Type: Application
    Filed: June 20, 2018
    Publication date: June 6, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Nayu YANAGAWA, Shinya NISHIKAWA, Taro FUJITA, Yuto KOBAYASHI, Masaki HAYAKAWA, Atsushi TSUJINO, Yuji OCHI
  • Publication number: 20190164664
    Abstract: A cable includes at least one core that has a conductor and an insulating coating layer that covers the conductor; and a sheath layer that covers the at least one core. The sheath layer includes an inner sheath layer and an outer sheath layer that covers the inner sheath layer. The inner sheath layer contains a silane-crosslinked very low density polyethylene. A main component of the outer sheath layer is polyurethane; a content of the very low density polyethylene per 100 parts by mass of a resin component in the inner sheath layer is 20 parts by mass or more and 100 parts by mass or less. A content of silicon atoms constituting silane crosslinks in the very low density polyethylene is 0.05 mass % or more and 1 mass % or less.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 30, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Yuhei MAYAMA, Hiroyuki OKAWA
  • Publication number: 20190153208
    Abstract: Provided is an insulating resin composition that contains a resin component containing a first copolymer which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms, a second copolymer which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms, which is subjected to acid modification, and which has a density of less than 0.88 g/cm3, and a third copolymer which is a copolymer of ethylene and an acrylic acid ester or the like, in which a ratio of contents of the first to third copolymers is within a specific range, and 30 to 100 parts by mass of a flame retardant and 1 to 5 parts by mass of a crosslinking assistant relative to 100 parts by mass of the resin component.
    Type: Application
    Filed: July 12, 2017
    Publication date: May 23, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Taro FUJITA, Shinya NISHIKAWA, Atsuko SHINOMIYA, Hiroyuki OKAWA
  • Patent number: 10269472
    Abstract: A heat-shrinkable tube or heat-shrinkable cap includes an adhesive layer disposed on the inner surface thereof, the adhesive layer including a low-viscosity adhesive layer formed of a resin having a viscosity of 10 Pa·s or less at a shear rate of 1 s?1 at the heat shrinkage temperature and a viscosity of 100 Pa·s or more at a shear rate of 1 s?1 at the maximum continuous use temperature. The heat-shrinkable tube or heat-shrinkable cap is used for waterproofing an exposed portion of electrical wires of an electrical wire bundle such as a wire harness, in which merely by placing the heat-shrinkable tube or heat-shrinkable cap over the exposed portion of electrical wires, waterproofing and water blocking between strands can be achieved, and outflow of the resin during heat shrinking does not occur. A method of waterproofing an electrical wire bundle uses the heat-shrinkable tube or heat-shrinkable cap.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: April 23, 2019
    Assignees: SUMITOMO ELECTRIC FINE POLYMER, INC., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yuuki Yabe, Ryohei Fujita, Ryota Fukumoto, Satoshi Yamasaki, Shinya Nishikawa
  • Patent number: 10263410
    Abstract: A heat-recoverable component includes a tube-shaped or cap-shaped base material layer having heat shrinkability, and an adhesive layer formed on an inner circumferential surface of the base material layer. The adhesive layer includes a low-viscosity adhesive portion and a high-viscosity adhesive portion disposed between the low-viscosity adhesive portion and an opening of the base material layer. The low-viscosity adhesive portion has a shear viscosity of 10 Pa·s or less at a shear rate of 1 s?1 at a heat shrinkage temperature of the base material layer. The high-viscosity adhesive portion has a shear viscosity of 100 Pa·s or more at a shear rate of 1 s?1 at the heat shrinkage temperature of the base material layer. At the heat shrinkage temperature, a ratio of the shear viscosity of the high-viscosity adhesive portion to the shear viscosity of the low-viscosity adhesive portion is 15,000 or less.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: April 16, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Ryota Fukumoto, Satoshi Yamasaki, Shinya Nishikawa, Yuuki Yabe
  • Patent number: 10239968
    Abstract: A pressure-sensitive adhesive sheet for covering according to an embodiment of the present invention includes a non-crosslinked rubber component having a maximum peak of the molecular weight distribution in the range of 50,000 to 3,000,000, an oil component having a maximum peak of the molecular weight distribution in the range of 1,000 to 20,000, and carbon black. The content of the non-crosslinked rubber component is 25% to 65% by mass, the content of the oil component is 35% to 75% by mass, and the content of the carbon black relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is 1 to 40 parts by mass.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: March 26, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Satoshi Yamasaki, Shinya Nishikawa, Yasutaka Emoto, Kazuto Shiina