Patents Assigned to The Japan Steel Works, Ltd.
  • Patent number: 10833293
    Abstract: A method of manufacturing a display apparatus having an organic EL element includes: a step of forming the organic EL element over a substrate made of a flexible substrate; and a step of forming a protecting film 16 made of an inorganic insulating material so as to cover the organic EL element by using an ALD method. In the step of forming the protecting film 16, the protecting film 16 is formed by alternately performing a step of forming a high-density layer 16H by using an ALD method and a step of forming, by using an ALD method, a low-density layer 16L that has the same constituent element as the high-density layer 16H and has a lower density than the high-density layer 16H. The protecting film 16 has a layered structure made of one or more high-density layers 16H and one or more low-density layers 16L so that the low-density layer 16L and the high-density layer 16H are alternately layered so as to be in contact with each other.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: November 10, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Keisuke Washio, Tatsuya Matsumoto, Takashi Ebisawa, Junichi Shida
  • Publication number: 20200340625
    Abstract: A pressure vessel (10) is provided with: a cylinder part (1) that defines a pressure chamber (11); a screwing part (3) that is disposed inside at least one of the two ends of the cylinder part; a lid (2) that has a pressure-receiving surface (2A) facing the pressure chamber and that is disposed at a position closer to the pressure chamber than is the screwing part; and a reinforcing ring (4) that is fitted to the outer circumferential surface of the cylinder part. The reinforcing ring covers, along the axial direction of the cylinder part, a part on an outer circumferential surface (1F) corresponding to a portion or the entirety of the engaging portion (12) between the cylinder part and the screwing part.
    Type: Application
    Filed: October 26, 2018
    Publication date: October 29, 2020
    Applicants: THE JAPAN STEEL WORKS, LTD., TOKYO DENKI UNIVERSITY
    Inventors: Yoru WADA, Takafumi HOSOYA, Hirokazu TSUJI
  • Publication number: 20200338801
    Abstract: An extruder which can be applied to various types of resin and elastomer without having to replace a die is provided. An extruder of the present inventions has: a barrel to which raw material, that is raw elastomer or raw material resin, is supplied; a screw that is driven to rotate in the barrel in order to process the raw material together with the barrel; and die 5 that is provided at a discharge point of the barrel and that discharges the raw material that has been processed. Die 5 includes first flat plate 11 having at least one first hole 13 and second flat plate 12 having at least one second hole 14, wherein first flat plate 11 and second flat plate 12 are arranged adjacent to each other along longitudinal axis X1 of the barrel, and at least either first flat plate 11 or second flat plate 12 is movable relative to the other flat plate such that an overlapping part of first hole 13 and second hole 14 can be varied.
    Type: Application
    Filed: November 1, 2017
    Publication date: October 29, 2020
    Applicant: The Japan Steel Works, Ltd.
    Inventors: Kiyoshi HANDA, Yohei SHIMIZU, Makoto TOJO, Jun KAKIZAKI
  • Publication number: 20200332403
    Abstract: An iron-based sintered alloy, which has a composition including, in terms of percent by mass, Ti: 18.4 to 24.6%, Mo: 2.8 to 6.6%, C: 4.7 to 7.0%, Cr: 7.5 to 10.0%, Ni: 4.5 to 6.5%, Co: 1.5 to 4.5%, Al: 0.6 to 1.0%, the balance being Fe and unavoidable impurities, wherein the alloy has a structure in which hard particles are dispersed in an island form in a matrix, among other characteristics.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 22, 2020
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Yusuke WATANABE, Kakeru KUSADA, Tetsuo MAKIDA, Youhei SAWAMURA
  • Patent number: 10745786
    Abstract: A method for producing an iron-based sintered alloy, which is used in sliding components in pairs and has a composition including, in terms of percent by mass, Ti: 18.4 to 24.6%, Mo: 2.8 to 6.6%, C: 4.7 to 7.0%, Cr: 7.5 to 10.0%, Ni: 4.5 to 6.5%, Co: 1.5 to 4.5%, Al: 0.6 to 1.0%, the balance being Fe and unavoidable impurities, wherein the method is carried out such that the alloy has a structure in which hard particles are dispersed in an island form in a matrix and, while an area ratio thereof is kept constant, a maximum circle equivalent diameter thereof is controlled to a predetermined value of 40 to 10 ?m.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 18, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Yusuke Watanabe, Kakeru Kusada, Tetsuo Makida, Youhei Sawamura
  • Publication number: 20200251740
    Abstract: Provided is a nonaqueous binder for electrodes or separators, which is used in a lithium ion battery that has excellent cycle life characteristics at high temperatures. A nonaqueous binder for electrodes or separators of lithium ion batteries, which is obtained by complexing cellulose nanofibers and a thermoplastic fluororesin, and which is characterized in that the cellulose nanofibers have a fiber size (diameter) of from 0.002 ?m to 1 ?m (inclusive), a fiber length of from 0.5 ?m to 10 mm (inclusive), and an aspect ratio ((fiber length of cellulose nanofibers)/(fiber diameter of cellulose nanofibers)) of from 2 to 100,000 (inclusive).
    Type: Application
    Filed: September 29, 2017
    Publication date: August 6, 2020
    Applicants: ATTACCATO LIMITED LIABILITY COMPANY, THE JAPAN STEEL WORKS, LTD.
    Inventors: Takashi MUKAI, Yuta IKEUCHI, Taichi SAKAMOTO, Naoto YAMASHITA, Ryo ISHIGURO, Satoru NAKAMURA
  • Publication number: 20200239993
    Abstract: The purpose of the present invention is to enhance the creep characteristics of an Ni-based alloy. The present invention relates to a Ni-based alloy characterized by having a composition containing, in terms of wt %, 15.00-25.00% Cr, 5.00-15.00% Co, 1.00% to less than 12.00% Mo, 1.50-2.50% Ti, 1.00-2.00% Al, 0.20-1.00% Nb, and 0.0010-0.10% C, and in terms of mass ppm, 10-200 ppm P, 30-250 ppm B, and 30-200 ppm N, the remainder comprising Ni and unavoidable impurities.
    Type: Application
    Filed: February 16, 2018
    Publication date: July 30, 2020
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Takuya OKAWA, Koichi TAKASAWA, Eiji MAEDA, Masato YOSHIDA
  • Patent number: 10697114
    Abstract: The present invention provides a fiber-reinforced resin intermediate material, including not only a thermoplastic resin but also a thermosetting resin, in which defects such as voids are difficult to be generated and which is excellent in shaping ability; and a method for manufacturing the same. The fiber-reinforced resin intermediate material according to the present invention is a fiber-reinforced resin intermediate material formed by attaching a resin to an outer surface part of a reinforcing fiber substrate formed of reinforcing fibers subjected to opening and heating the resin to a temperature equal to or higher than the melting point of the resin to impregnate the reinforcing fiber substrate with the resin, wherein the reinforcing fiber substrate has void space that is opened on an outer surface thereof and the resin is in a semi-impregnated state.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 30, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Akio Ono, Akira Yasue
  • Patent number: 10688704
    Abstract: Moving servo motors of molds in synchronization with the operations of platens which enables fine patterns or shapes to be formed even on a large molded article. A mold clamping device forms patterns or the like on a molded article by detecting a mold position of a second platen among first, second, third platens with digital mold opening/closing position detector, and driving servo motors for molds of the molds in synchronization with a digital mold opening/closing position signal from the digital mold opening/closing position detector.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: June 23, 2020
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Masanosuke Ikegaya, Yukio Fujiwara, Kazunari Suzuki, Toshimitsu Okuoka
  • Patent number: 10675600
    Abstract: A multi-shaft kneading machine includes a channel and two screws rotatable around first axes of rotation. A pair of gate rods sandwich the two screws and are rotatable around second axes of rotation. Each of the pair of gate rods has two recess parts that form respective spaces through which the two screws penetrate. Each of the pair of gate rods has a first contact surface, which comes into surface contact with a screw when a gate rod is rotated to a minimum degree-of-opening position. Large diameter parts are fitted into the groove of the cylinder, and a small diameter part have a radius of curvature equal to half a distance between two second axes of rotation and smaller than a radius of curvature of the large diameter parts. The small diameter parts of the pair of gate rods are in contact with each other.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 9, 2020
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Takuya Hamada, Manabu Ikeya, Makoto Ishikawa, Kazuhiro Kodate, Takayuki Yamazawa, Seiji Takamoto
  • Patent number: 10676603
    Abstract: A method for producing a resin composition is provided. The method includes melting and kneading a thermoplastic resin having a transition temperature of less than 200° C. and a powder with a twin-screw kneading extruder. The powder is an inorganic filler having an apparent density of 0.1 to 1.5 g/ml. The resin is supplied from a supply port to the extruder, and the powder is supplied from a gravimetric feeder to the extruder through a screw type side feeder. A transport capacity of the side feeder is 2 times or more an effective volume of the powder per unit time. In the extruder, melting and kneading are performed under conditions in which resin pressure in a first kneading zone is 1 MPa or more, and resin pressure in a second kneading zone is less than 3 MPa, and gas is removed from a vent port.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 9, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Takashi Sanada, Mitsuyoshi Shimano, Koji Kameo
  • Publication number: 20200156299
    Abstract: A flange is formed on a heating cylinder in a vicinity of a center in a longitudinal direction and a predetermined joining plate adheres to the flange. A flange plate is provided on a support frame. The joining plate is fixed to the flange plate to attach and detach freely, and the heating cylinder is caused to be supported by the support frame. Accordingly, movement in an axial direction and rotation of the heating cylinder are restricted. A guide portion for positioning during attachment and detachment is provided on one or both of the joining plate and the flange plate.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 21, 2020
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Takehiko YANAGIYA, Toshio TOYOSHIMA, Yutaka NAKAGAWA
  • Patent number: 10658185
    Abstract: A laser annealing apparatus (1) according to an embodiment includes a laser oscillator (4) configured to generate a laser beam (L), a floating-type conveying stage (3) configured to float and convey a workpiece (W) to be irradiated with the laser beam (L), and a beam profiler (7) configured to measure a beam profile of the laser beam (L). The floating-type conveying stage (3) includes a conveying surface (3a) opposed to the workpiece (W), and a bottom surface (3b) on the side opposite to the conveying surface (3a). The beam profiler (7) is positioned below the bottom surface (3b) of the floating-type conveying stage (3). The floating-type conveying stage (3) includes a detachable part (12) in a part of it. An opening (S) is formed by detaching the detachable part (12) from the floating-type conveying stage (3), the opening (3) extending from the conveying surface (3a) to the bottom surface (3b). The beam profiler (7) is configured to measure the beam profile of the laser beam (L) through the opening (S).
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: May 19, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Ryo Shimizu, Ryosuke Sato, Teruaki Shimoji
  • Patent number: 10633737
    Abstract: A device for atomic layer deposition includes: a film deposition chamber; a stage installed inside the film deposition chamber; a susceptor that holds, on the stage, a substrate; a mask disposed on the substrate, the mask being sized to encompass the substrate; a mask pin that supports the mask; and a mask pin hole bored through the stage and the susceptor vertically, and allows the mask pin to be inserted in a vertically movable manner, wherein the susceptor has a susceptor body having a holding surface of the substrate, and a susceptor peripheral edge located around the susceptor body and having a height lower than the holding surface, the mask pin hole is opened in the susceptor peripheral edge, and in the susceptor peripheral edge, an inert gas supply port that releases gas upward is provided around the holding surface in a surrounding area of the mask.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: April 28, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Tatsuya Matsumoto, Keisuke Washio
  • Patent number: 10633498
    Abstract: The present invention provides a method for producing a microporous film, including: preparing a resin composition containing polypropylene (PP) as a resin component and containing from 0.01 to 20 parts by weight of a chemically modified cellulose or chemically modified cellulose nanofiber per 100 parts by weight of the resin component and from 0.01 to 3 parts by weight of a ?-crystal nucleating agent per 100 parts by weight of the resin component; melt-molding the resin composition into a film-like material in which the crystal phase of a polypropylene component in the resin composition is substantially a ?-crystal phase, and subsequently stretching the film-like material at a temperature of 60 to 160° C., and provides a microporous film.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 28, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Ryou Ishiguro, Satoru Nakamura, Mariko Yoshioka
  • Publication number: 20200127634
    Abstract: A bonded substrate includes a quartz substrate and a piezoelectric substrate which is bonded on the quartz substrate and on which a surface acoustic wave propagates, wherein the quartz substrate and the piezoelectric substrate are bonded by covalently coupling at a bonding interface, and an orientation of the quartz substrate and an orientation of the piezoelectric substrate intersect with each other on an orthogonal direction side or in the range of 65 degrees to 115 degrees in a bonding surface direction.
    Type: Application
    Filed: June 7, 2018
    Publication date: April 23, 2020
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Kouhei KURIMOTO, Kazuhito KISHIDA, Rinzo KAYANO, Jun MIZUNO, Shoji KAKIO
  • Patent number: 10625459
    Abstract: According to the present invention, devolatilization of a synthetic resin formed from a polymer or synthetic rubber can be improved and the synthetic resin can be foamed at a low temperature by injecting a devolatilization agent through a devolatilization agent injection nozzle provided in a downstream end segment cylinder of a cylinder assembly. In a vented twin-screw kneading extrusion apparatus and extrusion method according to the present invention, a devolatilization agent, which is injected through a downstream end devolatilization agent injection nozzle (7c) provided on a downstream end segment cylinder constituted by a segment cylinder (1g) positioned on a downstream end of a cylinder assembly (1), is dispersed in molten resin in the downstream end segment cylinder (1g) and kneaded by a downstream end kneading portion (6c) such that the molten resin is foamed by the devolatilization agent and then extruded.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: April 21, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Yohei Shimizu, Jun Kakizaki, Kiyoshi Handa
  • Patent number: 10629974
    Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: April 21, 2020
    Assignees: UNIVERSITY OF YAMANASHI, THE JAPAN STEEL WORKS, LTD.
    Inventors: Naoto Sekiya, Katsuhiro Terao, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
  • Patent number: 10611074
    Abstract: A dimension in a Y-direction of a slit section (26) decreases gradually as a distance from an inflow port (23) in an X-direction increases. A cross-section of a manifold section (25) that is orthogonal to the X-direction decreases gradually as a distance from the inflow port (23) in the X-direction increases.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 7, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventor: Takahide Takeuchi
  • Patent number: 10604838
    Abstract: An apparatus for atomic layer deposition includes a film deposition chamber, a tubular exhaust pipe connecting section mounted to an outer side of an opening section provided in the film deposition chamber, and a tubular exhaust adhesion preventive member located inside the film deposition chamber and inserted into and mounted on the opening section. The exhaust pipe connecting section is provided with an inert-gas supply passage and an inert-gas supply port, both in the connecting section. The exhaust adhesion preventive member is provided with an inert-gas supply passage formed of a gap between each of an inner peripheral surface of the opening section and an inner wall of the film deposition chamber around the opening section, and the adhesion preventive member, and an inert-gas discharge port provided in the inert-gas supply passage, and from which the inert gas flows out into the film deposition chamber.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: March 31, 2020
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Tatsuya Matsumoto, Keisuke Washio