Patents by Inventor Hiroyuki Miyazaki

Hiroyuki Miyazaki 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).

  • Patent number: 11883980
    Abstract: A molding unit includes: a flask guide member guiding the upper flask and the lower flask; a first squeeze member and a second squeeze member disposed in such a manner as to sandwich upper and lower flasks as the upper flask and the lower flask connected with each other, the first squeeze member and the second squeeze guide member each capable of entering the upper and lower flasks; a squeeze cylinder including a rod having an end part fixed to the first squeeze member and a cylinder body extending and contracting the rod; and a squeeze guide member configured to fix relative positions of the second squeeze guide member and the cylinder body. The flask guide member is a hollow rod member, and the squeeze guide member is a rod member disposed in a movable manner inside the flask guide member.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: January 30, 2024
    Assignee: SINTOKOGIO, LTD.
    Inventors: Hiroyuki Miyazaki, Kimikazu Kaneto
  • Patent number: 11855546
    Abstract: An output stabilization circuit includes: a primary-side circuit including first and second self-excited oscillator circuits connected to a direct-current power supply; and a secondary-side circuit, wherein the first and second self-excited oscillator circuits include power transmission coils, resonant capacitors, switching element pairs, and feedback coils, the second self-excited oscillator circuit further includes a phase shift filter, the phase shift filter includes a primary-side control coil that is magnetically coupled to a secondary-side control coil included in the secondary-side circuit and that has a characteristic that an inductance changes depending on a current flowing through the secondary-side control coil.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: December 26, 2023
    Inventor: Hiroyuki Miyazaki
  • Publication number: 20220324137
    Abstract: A molding unit includes: a flask guide member guiding the upper flask and the lower flask; a first squeeze member and a second squeeze member disposed in such a manner as to sandwich upper and lower flasks as the upper flask and the lower flask connected with each other, the first squeeze member and the second squeeze member each capable of entering the upper and lower flasks; a squeeze cylinder including a rod having an end part fixed to the first squeeze member and a cylinder body extending and contracting the rod; and a squeeze guide member configured to fix relative positions of the second squeeze member and the cylinder body. The flask guide member is a hollow rod member, and the squeeze guide member is a rod member disposed in a movable manner inside the flask guide member.
    Type: Application
    Filed: April 1, 2022
    Publication date: October 13, 2022
    Applicant: SINTOKOGIO, LTD.
    Inventors: Hiroyuki MIYAZAKI, Kimikazu KANETO
  • Publication number: 20220311342
    Abstract: An output stabilization circuit includes: a primary-side circuit including first and second self-excited oscillator circuits connected to a direct-current power supply; and a secondary-side circuit, wherein the first and second self-excited oscillator circuits include power transmission coils, resonant capacitors, switching element pairs, and feedback coils, the second self-excited oscillator circuit further includes a phase shift filter, the phase shift filter includes a primary-side control coil that is magnetically coupled to a secondary-side control coil included in the secondary-side circuit and that has a characteristic that an inductance changes depending on a current flowing through the secondary-side control coil.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 29, 2022
    Inventor: Hiroyuki MIYAZAKI
  • Patent number: 11340267
    Abstract: A current detection device is configured by a current path through which a first current flows, a current path through which a second current flows, a switching element that switches the current paths and allows the first current and the second current to flow alternately, a common coil section through which an induction current flows by the first current and the second current, and a turn current path that alternates a first induction current flowing through the coil section by the first current and a second induction current flowing through the coil section by the second current.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: May 24, 2022
    Inventor: Hiroyuki Miyazaki
  • Publication number: 20220130602
    Abstract: A method is provided for manufacturing a transformer. The method includes preparing a core, a first coil portion that covers at least part of the core, and a second coil portion that covers a periphery of the first coil portion perpendicular to a central axis of winding of the first coil portion. The first and second coil portions each include a bobbin and a coil wound therearound. The coil of the first or second coil portion is an edgewise coil. The method also includes: screwing the bobbin and coil of the first coil portion with each other, and screwing the bobbin and coil of the second coil portion with each other; and attaching the second coil portion to the outside of the first coil portion perpendicular to the central axis of winding of the first coil portion, and attaching the core to sandwich the first and second coil portions in an axial direction of the first coil portion.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Inventor: Hiroyuki MIYAZAKI
  • Patent number: 11257618
    Abstract: A transformer includes: an upper E core; a lower E core; a first coil portion disposed so as to cover a magnetic leg of the upper E core and a magnetic leg of the lower E core; and a second coil portion disposed so as to cover the periphery of the first coil portion in a direction perpendicular to the central axis of winding of the first coil portion. The first coil portion includes a bobbin and an edgewise coil wound around the bobbin. The second coil portion includes a bobbin and an edgewise coil wound around the bobbin.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: February 22, 2022
    Inventor: Hiroyuki Miyazaki
  • Patent number: 11239815
    Abstract: A resonance matching circuit used in a power supply system that supplies electric power by an electric field coupling method is provided. The resonance matching circuit includes an inverter circuit that functions as a voltage source, parallel transformer devices that are connected in parallel to the inverter circuit and transmit a current supplied from the inverter circuit, and a timing adjustment circuit that is located between the inverter circuit and the parallel transformer devices and adjusts an input timing of a pulse current supplied by the inverter circuit.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 1, 2022
    Inventor: Hiroyuki Miyazaki
  • Patent number: 11207721
    Abstract: [PROBLEM] The invention provides a roll for hot rolling process having various types of more excellent durability performances than conventional rolls, and provides also a method for manufacturing the same. [SOLUTION] A cladding layer 4 is formed on an outer circumference portion of a roll for hot rolling process 1, where the cladding layer 4 comprises: 0.5 to 0.7% by mass of C, 2.8 to 4.0% by mass of Si, 0.9 to 1.1% by mass of Cu, 1.4 to 1.6% by mass of Mn, 2.7 to 3.3% by mass of Ni, 13.5 to 14.5% by mass of Cr, 0.8 to 1.1% by mass of Mo, 0.9 to 1.1% by mass of Co, and 0.2 to 0.4% by mass of Nb, with a balance being Fe and inevitable impurities, and has a thickness of 5 mm or more.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: December 28, 2021
    Assignee: FUJICO CO., LTD.
    Inventors: Hyo-Gyoung Kang, Akio Sonoda, Hideaki Nagayoshi, Hiroaki Furuta, Hiroyuki Miyazaki
  • Patent number: 11201552
    Abstract: A power supply system is provided that can synchronize a primary circuit and a secondary circuit with high accuracy and are advantageous in downsizing and simplification. The system includes a first circuit including: a battery device; transistor elements to which a voltage is supplied; coil units to which a feeding current is supplied in an on state of the transistor elements; a capacitor that changes a flow direction of the feeding current; and a driving coil that turns on/off the transistor elements, and a second circuit including: coil units and a driving coil in which induced electromotive force is generated; transistor elements that are turned on/off by the induced electromotive force; and a battery device that receives supply of power in an on state of the transistor elements.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: December 14, 2021
    Inventor: Hiroyuki Miyazaki
  • Publication number: 20210119597
    Abstract: A resonance matching circuit used in a power supply system that supplies electric power by an electric field coupling method is provided. The resonance matching circuit includes an inverter circuit that functions as a voltage source, parallel transformer devices that are connected in parallel to the inverter circuit and transmit a current supplied from the inverter circuit, and a timing adjustment circuit that is located between the inverter circuit and the parallel transformer devices and adjusts an input timing of a pulse current supplied by the inverter circuit.
    Type: Application
    Filed: February 25, 2019
    Publication date: April 22, 2021
    Inventor: Hiroyuki MIYAZAKI
  • Patent number: 10985810
    Abstract: User terminal 20 configured to perform MIMO transmission with radio base station 10 includes: control section 200 configured to generate first channel estimation information based on a reference signal transmitted by radio base station 10, and perform an operation for elimination of an interference signal on the first channel estimation information to generate second channel estimation information; and postcoder 208 configured to perform postcoding, based on the second channel estimation information, on a data signal to be transmitted by the radio base station 10, so as to detect a desired signal.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: April 20, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroyuki Miyazaki, Satoshi Suyama, Jun Mashino, Yukihiko Okumura
  • Patent number: 10917160
    Abstract: Radio base station 10 configured to perform MIMO transmission with user terminals 20 includes: beam selecting section 100 configured to select at least one used beam from among a plurality of beams based on beam-selection reference parameters to be computed based on beam information transmitted by user terminals 20; and user terminal selecting section 102 configured to select, from among at least one of user terminals 20 which has selected the at least one used beam, at least one of user terminals 20 to be a target for the at least one used beam.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: February 9, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroyuki Miyazaki, Satoshi Suyama, Jun Mashino, Yukihiko Okumura
  • Patent number: 10910717
    Abstract: An antenna device including a first rod-shaped core having a flange portion and a second rod-shaped core having a flange portion, which are arranged in series and including a first coil and a second coil, wherein the end surface of the first rod-shaped core and the end surface of the second rod-shaped core are spaced.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: February 2, 2021
    Assignee: SUMIDA CORPORATION
    Inventors: Yoshinori Inoue, Isao Douchi, Kei Tanaka, Takanari Fujimaki, Yoshinori Miura, Hiroshi Kawasaki, Hiromitsu Kuriki, Takanobu Rokuka, Hiroyuki Miyazaki
  • Publication number: 20210018539
    Abstract: A current detection device is configured by a current path through which a first current flows, a current path through which a second current flows, a switching element that switches the current paths and allows the first current and the second current to flow alternately, a common coil section through which an induction current flows by the first current and the second current, and a turn current path that alternates a first induction current flowing through the coil section by the first current and a second induction current flowing through the coil section by the second current.
    Type: Application
    Filed: July 13, 2020
    Publication date: January 21, 2021
    Inventor: Hiroyuki MIYAZAKI
  • Publication number: 20210006169
    Abstract: A power supply system is provided that can synchronize a primary circuit and a secondary circuit with high accuracy and are advantageous in downsizing and simplification. The system includes a first circuit including: a battery device; transistor elements to which a voltage is supplied; coil units to which a feeding current is supplied in an on state of the transistor elements; a capacitor that changes a flow direction of the feeding current; and a driving coil that turns on/off the transistor elements, and a second circuit including: coil units and a driving coil in which induced electromotive force is generated; transistor elements that are turned on/off by the induced electromotive force; and a battery device that receives supply of power in an on state of the transistor elements.
    Type: Application
    Filed: June 23, 2020
    Publication date: January 7, 2021
    Inventor: Hiroyuki MIYAZAKI
  • Patent number: 10882105
    Abstract: When the deceleration start point is reached, the meter-in side of the hydraulic driving actuator is subjected to a flow rate control to thereby start the deceleration control processing. The position to which the movable unit is moved is detected to use a speed instruction corresponding to the movement position to subject the hydraulic driving actuator to a meter-in control. The position to which the movable unit is moved is detected to calculate the moving speed of the movable unit. Based on the speed instruction, the moving speed is subjected to the feedback control using the meter-out control to the hydraulic driving actuator.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: January 5, 2021
    Assignee: NISSEI PLASTIC INDUSTRIAL CO., LTD.
    Inventors: Hiroyuki Miyazaki, Satomi Sakaki, Kenichi Hayashi, Isamu Komamura
  • Publication number: 20200164430
    Abstract: When the deceleration start point is reached, the meter-in side of the hydraulic driving actuator is subjected to a flow rate control to thereby start the deceleration control processing. The position to which the movable unit is moved is detected to use a speed instruction corresponding to the movement position to subject the hydraulic driving actuator to a meter-in control. The position to which the movable unit is moved is detected to calculate the moving speed of the movable unit. Based on the speed instruction, the moving speed is subjected to the feedback control using the meter-out control to the hydraulic driving actuator.
    Type: Application
    Filed: December 22, 2017
    Publication date: May 28, 2020
    Applicant: NISSEI PLASTIC INDUSTRIAL CO.,LTD.
    Inventors: Hiroyuki MIYAZAKI, Satomi SAKAKI, Kenichi HAYASHI, Isamu KOMAMURA
  • Patent number: 10660935
    Abstract: A peptide consisting of an amino acid sequence of GPPGPAG (SEQ ID NO: 1) is disclosed. According to the present invention, a novel compound for improving memory disorder is provided.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 26, 2020
    Assignees: JAPAN BIO PRODUCTS Co., Ltd., National University Corporation University of Toyama
    Inventors: Chihiro Tohda, Taiichi Kaku, Hiroyuki Miyazaki
  • Patent number: D929267
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: August 31, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Stephane Zache, Hiroyuki Miyazaki