Patents Assigned to The Japan Steel Works, Ltd.
  • Publication number: 20220080639
    Abstract: A mold clamping device includes: a fixed platen; a movable platen facing the fixed platen; a mold clamping housing; a plurality of tie bars connecting the fixed platen and the mold clamping housing; a plurality of tie bar nuts respectively provided on the plurality of tie bars, and configured to adjust a distance between the fixed platen and the mold clamping housing; a toggle mechanism provided between the mold clamping housing and the movable platen; a plurality of rotation members respectively provided integrally with the plurality of tie bar nuts; one endless string-shaped force transmission member wound around the plurality of rotation members; and a rotation driver configured to transmit a driving force to at least one of the plurality of the tie bar nuts as a drive target tie bar nut.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 17, 2022
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Koji MATSUZAKI, Takafumi NISHIBE
  • Patent number: 11267177
    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: Grant
    Filed: November 19, 2019
    Date of Patent: March 8, 2022
    Assignee: THE JAPAN STEEL WORKS. LTD.
    Inventors: Takehiko Yanagiya, Toshio Toyoshima, Yutaka Nakagawa
  • Patent number: 11264259
    Abstract: A workpiece conveyance apparatus having: a conveyance path on which the workpiece moves; a gas flotation section that gas-floats the workpiece over the conveyance path; a movable holding section that holds the workpiece to move on the conveyance path along with the workpiece; and a treatment region conveyance path that is located on the conveyance path, and has a treatment region where predetermined treatment for the workpiece is performed, wherein the movable holding section has at least two or more holding sections along a movement direction of the conveyance path, each of the holding sections is capable of switching between release of holding and holding for the workpiece during movement of the workpiece, operation for releasing holding of the workpiece by the holding section on the treatment region conveyance path, and holding the workpiece on the conveyance path other than the treatment region conveyance path.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 1, 2022
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Ryo Shimizu, Miki Sawai, Hirotaka Sazuka, Daisuke Ito
  • Publication number: 20220028690
    Abstract: A laser annealing apparatus according to an embodiment includes a laser light source, an annealing optical system, a linear irradiation region along a Y-direction, a moving mechanism configured to change a relative position of the irradiation region with respect to the substrate along an X-direction, an illumination light source configured to generate illumination light for illuminating the substrate along a third direction, and a detector configured to detect detection light reflected, in a fourth direction, on the substrate illuminated by the illumination light so as to photograph an annealed part of the substrate in a linear field of view along the Y-direction. In a YZ-plane view, the third direction is inclined from the vertical direction and the fourth direction is inclined from the vertical direction.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 27, 2022
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Kenichi OHMORI, Suk-Hwan CHUNG, Ryosuke SATO, Nobuo OKU
  • Patent number: 11211678
    Abstract: Provided is a dual-band resonator which can be downsized further than conventional ones. A dual-band resonator is provided with a first conductor and a second conductor. The first conductor is configured to be folded at a first folding part at the center so that both extensions are in a prescribed direction and adjacent to one another with a prescribed space therebetween, wherein a conductor part closer to one end side than the first folding part and a conductor part closer to the other end side than the first folding part are further folded at second folding parts between the one end and the first folding part and between the other end and the first folding part, respectively, in a direction in which the one end and the other end are apart from each other. The second conductor extends in a prescribed direction contiguously to the first folding part of the first conductor. The first conductor constitutes a half-wavelength resonator, and odd-mode resonance occurs in the first conductor.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 28, 2021
    Assignees: TOKYO KEIKI INC., THE JAPAN STEEL WORKS, LTD., UNIVERSITY OF YAMANASHI
    Inventors: Naoto Sekiya, Takahiro Unno, Tsutomu Tsuruoka, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
  • Patent number: 11187953
    Abstract: A laser processing apparatus includes: a laser light source that generates a laser beam; a first beam splitter on which the laser beam is incident; a second beam splitter on which the laser beam having passed through the first beam splitter is incident; and a homogenizer that controls an energy density of the laser beam emitted from the second beam splitter. The laser beam output from the homogenizer includes a p-polarized component and an s-polarized component, and a ratio of energy intensity of the p-polarized component to the s-polarized component is preferably not lower than 0.74 and not higher than 1.23 on a surface of the workpiece.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: November 30, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Suk-Hwan Chung, Masashi Machida
  • Patent number: 11180848
    Abstract: A plasma atomic layer deposition apparatus includes: a source gas supply port functioning also as a cleaning gas supply port provided on a first side wall of a film-forming container; and a source gas exhaust port functioning also as a cleaning gas exhaust port provided on a second side wall opposed to the first side wall of the film-forming container.
    Type: Grant
    Filed: August 4, 2018
    Date of Patent: November 23, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Masamitsu Toramaru, Keisuke Washio, Masaki Chiba, Masao Nakata
  • Patent number: 11179866
    Abstract: A parison separation device (30) according to an embodiment includes a cutter (31) with a cutting edge (35), the cutting edge (35) extending in a one direction and facing upward, and a block (33), the cutter being attached to an upper part of the block (33), inclined surfaces (37) being formed on both sides of the block (33) in a thickness direction of the cutting edge (35), each of the inclined surfaces (37) including a component that is inclined increasingly downward as it gets closer to one direction side end, in which the parison separation device (30) is disposed on a discharging direction side of a discharging port of a parison and configured to cut the parison discharged from the discharging port.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: November 23, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Masanosuke Ikegaya, Yuji Hisatomi, Shoji Abe, Toshiaki Shinmoto
  • Patent number: 11127926
    Abstract: A method of manufacturing a display device having an organic EL device includes the steps of: forming an organic EL device over a substrate; and forming a protection film so as to cover the organic EL device. The protection film is made of a laminated film of a first insulating film containing Si, a second insulating film containing Al and a third insulating film containing Si. The step of forming the protection film includes the steps of: forming the first insulating film by a plasma CVD method so as to cover the organic EL device; forming the second insulating film over the first insulating film by an ALD method; and forming the third insulating film over the second insulating film by a plasma CVD method.
    Type: Grant
    Filed: November 27, 2016
    Date of Patent: September 21, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Keisuke Washio, Tatsuya Matsumoto, Junichi Shida, Takashi Ebisawa
  • Publication number: 20210278043
    Abstract: The present invention provides a pressure vessel for hydrogen in which the development of cracking in the pressure vessel for hydrogen can be effectively inhibited and that is excellent in terms of safety, reliability, and durability. The present invention pertains to a pressure vessel for hydrogen in which a plastic region is present on the inner face side of a hydrogen pressure vessel main body, an elastic region is present on the outer face side, and compressive residual stress is generated on the inner face, wherein preferably: the equivalent plastic strain remaining on the inner surface of the hydrogen pressure vessel main body is 1% or below; the plastic region on the inner face side measures 50% or less of the wall thickness in the radial direction of the hydrogen pressure vessel main body; and the steel used has a tensile strength of at least 725 MPa.
    Type: Application
    Filed: July 14, 2017
    Publication date: September 9, 2021
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Hironobu ARASHIMA, Yoru WADA, Yusuke YANAGISAWA
  • Patent number: 11114300
    Abstract: A laser annealing apparatus (1) according to the embodiment includes: a laser beam source (11) configured to emit a laser beam (L1) to crystallize an amorphous silicon film (101a) on a substrate (100) and to form a poly-silicon film (101b); a projection lens (13) configured to condense the laser beam to irradiate a silicon film (101); a probe beam source configured to emit a probe beam (L2); a photodetector (25) configured to detect the probe beam (L3) transmitted through the silicon film (101); a processing apparatus (26) configured to calculate a standard deviation of detection values of a detection signal output from the photodetector, and to determine a crystalline state of the crystallized film based on the standard deviation.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: September 7, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Kenichi Ohmori, Suk-Hwan Chung, Ryosuke Sato, Masashi Machida
  • Patent number: 11104051
    Abstract: Provided is a molding machine including a mold opening/closing mechanism configured to move a movable platen to be attached with a movable mold to a stationary platen to be attached with a stationary mold, and a clamping mechanism to perform a clamping process, and is intended to suppress machine cost or ensure the mold opening/closing speed. The molding machine includes the mold opening/closing mechanism configured to move the movable platen to be attached with the movable mold to the stationary platen to be attached with the stationary mold, and the clamping mechanism configured to perform a clamping process. The mold opening/closing mechanism includes at least two ball screws, at least two electric motors that respectively drive the ball screws, and a ball screw nut into which each of the ball screws is inserted.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 31, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Shizuo Jinno, Hisanaga Tajima, Shinji Hayashi, Hiroki Hasegawa
  • Publication number: 20210261358
    Abstract: A flotation conveyance apparatus according to an embodiment includes a flotation unit for floating a substrate by ejecting a gas to a lower surface of the substrate. The flotation unit includes a plurality of ejecting ports provided on a surface facing the substrate and configured to eject the gas, and slits penetrating the flotation unit in a vertical direction. The flotation conveyance apparatus is configured in such a way that the gas staying between a surface of the flotation unit facing the substrate and the substrate is discharged to a lower surface side of the flotation unit through the slits.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 26, 2021
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Takahiro FUJI, Yoshihiro YAMAGUCHI
  • Publication number: 20210261359
    Abstract: A flotation conveyance apparatus according to an embodiment is for conveying a substrate while floating the substrate by ejecting a gas to a lower surface of the substrate. The flotation conveyance apparatus includes a plurality of ejecting ports configured to eject the gas to the substrate, a downstream flow-path configured to supply the gas to the plurality of ejecting ports, a upstream flow-path configured to supply the gas to the downstream flow-path, and a gas supply port configured to supply the gas to the downstream flow-path. A cross-sectional area of the upstream flow-path is configured to be larger than a cross-sectional area of the downstream flow-path.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 26, 2021
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Takahiro FUJI, Yoshihiro YAMAGUCHI
  • Publication number: 20210252635
    Abstract: A flotation conveyance apparatus according to an embodiment conveys a substrate while floating the substrate by ejecting a gas to a lower surface of the substrate. The flotation conveyance apparatus includes an upper plate disposed on the substrate side including a plurality of ejecting ports for ejecting the gas and a lower plate disposed under the upper plate. Flow-paths for supplying the gas to the plurality of ejecting ports are provided on at least one of the upper plate and the lower plate.
    Type: Application
    Filed: January 14, 2021
    Publication date: August 19, 2021
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Takahiro FUJI, Yoshihiro YAMAGUCHI, Takashi NAGAI
  • Patent number: 11065829
    Abstract: The fiber-reinforced resin intermediate material according to the present invention is formed by attaching a resin powder to an outer surface of a reinforcing fiber substrate formed of reinforcing fibers and heating it to melt the resin powder to the outer surface of the reinforcing fiber substrate so as to have an uneven shape derived from the resin powder and also have an opened void space.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: July 20, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Akio Ono, Hiroshi Ito, Tsukasa Shiroganeya, Takuya Niyama, Takuya Iwamoto, Shigeki Inoue
  • Patent number: 11061261
    Abstract: An optical modulator, a substrate for an optical modulator, a method of manufacturing an optical modulator, and a method of manufacturing a substrate for an optical modulator that can reduce a propagation loss are provided. An optical modulator 1 according to an embodiment includes: a base substrate 10; a waveguide substrate 20 disposed over the base substrate 10 and including an electro-optic effect; a waveguide 23 formed on the waveguide substrate 20 for performing optical modulation; and an electrode 40 configured to apply a voltage to the waveguide 23. Here, the base substrate 10 and the waveguide substrate 20 are made of the same material, the waveguide 23 is formed inside the waveguide substrate 20, and a refractive index of the waveguide substrate 20 is larger than a refractive index of the base substrate 10.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 13, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Toshifumi Yonai, Kazuhito Kishida, Rinzo Kayano, Satoru Ohsaki, Kengo Ogawa, Kouhei Kurimoto, Hiroaki Yokota, Shoji Kakio
  • Patent number: 11062883
    Abstract: A film quality of a film formed on a substrate is improved. A plasma atomic layer deposition apparatus has a lower electrode holding the substrate, and an upper electrode having an opposite surface opposed to the lower electrode and generating plasma discharge between the upper electrode and the lower electrode. Further, the plasma atomic layer deposition apparatus has a conductive deposition preventing member fixed to the opposite surface of the upper electrode by a plurality of screws, and other conductive deposition preventing member fixed to the conductive deposition preventing member by a plurality of others screws. At this time, in a plan view, the plurality of screws and the plurality of other screws are arranged so as not to overlap each other.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: July 13, 2021
    Assignee: THE JAPAN STEEL WORKS, LTD.
    Inventors: Keisuke Washio, Masao Nakata
  • Publication number: 20210207237
    Abstract: A Cu-containing low alloy steel includes a chemical composition containing, in % by mass, C: 0.01 to 0.06%, Si: 0.05 to 0.40%, Mn: 0.20 to 0.70%, Ni: 1.20 to 2.50%, Cr: 0.50 to 1.00%, Cu: 0.80 to 1.50%, Mo: 0.20 to 0.60%, Al: 0.010 to 0.050% and Nb: 0.020 to 0.080% and N: 0.005 to 0.020%, and as required, Ca: 0.010% or less, the balance consisting of Fe and unavoidable impurities.
    Type: Application
    Filed: March 5, 2020
    Publication date: July 8, 2021
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Yuta HONMA, Gen SASAKI, Kunihiko HASHI
  • Publication number: 20210197420
    Abstract: The present invention provides a kneading method for a fiber-reinforced thermoplastic resin with which dispersibility of reinforcement fibers is enhanced and sufficient reinforcement fibers having a proper fiber length remain, and a fiber-reinforced thermoplastic resin plasticizing device and an extruding machine for carrying out the method. The kneading method comprises supplying a thermoplastic resin and reinforcement fibers into a cylinder of a plasticizing device, and rotating a screw to obtain a fiber-reinforced thermoplastic resin, wherein the size of a clearance between the bore of the cylinder and the screw is made different between an upstream side in the vicinity of a reinforcement fiber loading port and a downstream side, so that the clearance becomes larger from the vicinity of the reinforcement fiber loading port toward the downstream side compared with the upstream side.
    Type: Application
    Filed: September 26, 2018
    Publication date: July 1, 2021
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Akira YASUE, Hideki CHIBA, Daisuke KUNIHIRO, Shose NISHIDA, Kazuya TSUJI, Yasufumi FUJITA, Kazuki FUJITA, Yukihiro SUMIHIRO