Patents by Inventor Masatomo Shirouzu

Masatomo Shirouzu 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: 20190027299
    Abstract: A reactor includes a terminal block having a plurality of terminals which is coupled to one end of a core body. A plurality of surge protection elements are connected to the plurality of terminals inside the terminal block. Input side extension portions and output side extension portions extending from coils are connected to the plurality of terminals of the terminal block, and a plurality of surge protection elements are connected to the input side extension portions and the output side extension portions, respectively.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 24, 2019
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20190019614
    Abstract: A reactor according to an embodiment of the present disclosure includes a core body that includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to the outer peripheral iron core portions, and coils wound on the iron cores. A gap is formed between one of the iron cores and another of the iron cores adjacent to the one of the iron cores, so as to be magnetically connectable through the gap. The reactor includes a terminal base unit for electrically connecting the coils to an external device, and a temperature sensor attached to a surface of the terminal base unit, the surface being opposite the coils.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 17, 2019
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20190013135
    Abstract: A core body includes an outer peripheral iron core and at least three iron cores inside the outer peripheral iron core and extending in the radial direction thereof. At least one of the outer peripheral iron core and the at least three iron cores is formed of a hoop material wound body formed by winding a hoop material.
    Type: Application
    Filed: June 25, 2018
    Publication date: January 10, 2019
    Applicant: FANUC CORPORATION
    Inventor: Masatomo Shirouzu
  • Publication number: 20190013134
    Abstract: A reactor according to an embodiment of the present disclosure includes a core body. The core body includes a peripheral iron core composed of a plurality of peripheral iron core portions, at least three iron cores coupled to the peripheral iron core portions, and coils wound on the iron cores. Gaps are formed between one of the iron cores and another iron core adjacent thereto, so as to be magnetically connectable through the gaps. The reactor further includes a plurality of covering portions each for covering each of the coils. The covering portions adjacent in a circumferential direction can be fitted to each other.
    Type: Application
    Filed: June 26, 2018
    Publication date: January 10, 2019
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20190013136
    Abstract: A reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions and at least three iron core coils arranged inside the outer peripheral iron core. The at least three iron core coils are composed of iron cores coupled to the plurality of outer peripheral iron core portions and coils wound onto the iron cores. Gaps, which can be magnetically coupled, are formed between adjacent iron cores. The reactor further includes connection parts for connecting the plurality of outer peripheral iron core portions to each other.
    Type: Application
    Filed: June 25, 2018
    Publication date: January 10, 2019
    Applicant: FANUC CORPORATION
    Inventors: Kenichi Tsukada, Masatomo Shirouzu, Tomokazu Yoshida
  • Publication number: 20190013137
    Abstract: A reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions and at least three iron core coils arranged inside the outer peripheral iron core. Each of the at least three iron core coils is composed of an iron core coupled to the respective outer peripheral iron core portion and a coil wound onto the respective iron core. Gaps, which can be magnetically coupled, are formed between adjacent iron cores. The reactor further includes connection parts for connecting the plurality of outer peripheral iron core portions to each other.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 10, 2019
    Inventors: Masatomo SHIROUZU, Kenichi TSUKADA
  • Publication number: 20190013139
    Abstract: A reactor includes an outer peripheral iron core and at least three iron core coils arranged inside the outer peripheral iron core. Gaps, which can be magnetically coupled, are formed between at least three adjacent iron cores. Coils are arranged in coil spaces formed between the iron cores and the outer peripheral iron core. At least one corner part in the cross-section of the coil spaces in the axial direction is rounded, or the at least one corner part is one part of a polygon having an internal obtuse angle of not less than 100°.
    Type: Application
    Filed: June 26, 2018
    Publication date: January 10, 2019
    Applicant: FANUC CORPORATION
    Inventors: Masatomo Shirouzu, Kenichi Tsukada, Tomokazu Yoshida
  • Publication number: 20180366252
    Abstract: A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to the plurality of outer peripheral iron core portions, and coils wound onto the at least three iron cores. Gaps, which can be magnetically coupled, are formed between one of the at least three iron cores and another iron core adjacent thereto. The reactor includes cover parts which at least partially cover the iron cores and provide insulation from the coils.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 20, 2018
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20180366268
    Abstract: A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least 3 iron cores coupled to the outer peripheral iron core portions, and coils wound onto the at least three iron cores. Gaps are formed between one of the at least three iron cores and another iron core adjacent thereto. Further, the reactor includes a temperature detection part arranged in the center of one end surface of the core body.
    Type: Application
    Filed: June 8, 2018
    Publication date: December 20, 2018
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20180358165
    Abstract: A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to the plurality of outer peripheral iron core portions, and coils wound onto the at least three iron cores. The reactor includes a terminal and base which are fastened to the core body so as to interpose the core body therebetween, a first abutment member attached to the base and is configured to abut one end of the at least three iron cores between the base and the core body, and a second abutment member attached to the terminal and is configured to abut the other end of the at least three iron cores between the core body and the terminal.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 13, 2018
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20180350504
    Abstract: A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to inner surfaces of the plurality of outer peripheral iron core portions, and coils. Gaps, which can be magnetically coupled, are formed between one iron core and another iron core adjacent thereto. The reactor further includes a fixture which extends through the interior of the core body in a region between the outer peripheral iron core and the gaps to fasten opposite ends of the at least three iron cores to each other.
    Type: Application
    Filed: May 25, 2018
    Publication date: December 6, 2018
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20180336984
    Abstract: A reactor includes a core body. The core body includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to the plurality of outer peripheral iron core portions, and coils wound around the at least three iron cores. The reactor includes an end plate fastened to at least one end of the core body. The end plate includes a plurality of fasteners for fastening the plurality of outer peripheral iron core portions to each other.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 22, 2018
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20180311640
    Abstract: A reactor includes a core body and an end plate fastened to at least one end of the core body. The end plate is formed from a plurality of end plate parts.
    Type: Application
    Filed: April 19, 2018
    Publication date: November 1, 2018
    Applicant: FANUC CORPORATION
    Inventors: Tomokazu Yoshida, Masatomo Shirouzu, Kenichi Tsukada
  • Publication number: 20180277295
    Abstract: An iron core includes a first iron core block and second iron core blocks. The first iron core block includes recessed portions. The second iron core blocks include projection portions. The recessed portions and the projection portions can be fitted with each other. The second iron core blocks are disposed inside the ring-shaped first iron core block. Coils are wound onto the second iron core blocks.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 27, 2018
    Inventor: Masatomo SHIROUZU
  • Publication number: 20180268992
    Abstract: A three-phase reactor according to an embodiment of this disclosure includes a coil having a winding portion; an iron core partly disposed inside the winding portion; and a covering portion containing the coil, and having an opening.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Applicant: FANUC CORPORATION
    Inventors: Kenichi Tsukada, Masatomo Shirouzu
  • Publication number: 20180268985
    Abstract: An AC reactor according to an embodiment of this disclosure includes a peripheral iron core constituted of partial peripheral iron cores divided by a plurality of dividing surfaces, for enclosing an outer periphery; at least three iron core coils contacting, connected to, or magnetically connected to an inner surface of the peripheral iron core, each of the iron core coils including an iron core and a coil wound around the iron core; and a securing member for securing the partial peripheral iron cores to maintain the peripheral iron core in contact at the dividing surfaces.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Applicant: FANUC CORPORATION
    Inventor: Masatomo Shirouzu
  • Publication number: 20180268991
    Abstract: An AC reactor according to an embodiment of this disclosure includes a peripheral iron core, and at least three iron core coils contacting or connected to an inner surface of the peripheral iron core. Each of the iron core coils includes an iron core and a coil wound around the iron core. The AC reactor further includes a terminal base unit for covering the iron core coils.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 20, 2018
    Applicant: Fanuc Corporation
    Inventors: Kenichi Tsukada, Masatomo Shirouzu
  • Publication number: 20180268984
    Abstract: An iron core includes a first iron core block and a second iron core block disposed so as to create a gap therebetween, and a non-magnetic fastener disposed in the gap. The fastener joins the first iron core block and the second iron core block to each other.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 20, 2018
    Inventor: Masatomo SHIROUZU
  • Publication number: 20180261374
    Abstract: A reactor includes an outer peripheral iron core, and at least three core coils contacting or connected to an inner surface of the outer peripheral iron core. Each of the core coils includes a core and a coil wound onto the core. The reactor further includes cooling units disposed in end surfaces of the outer peripheral iron core, for cooling the outer peripheral iron core.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 13, 2018
    Applicant: Fanuc Corporation
    Inventors: Kenichi Tsukada, Masatomo Shirouzu
  • Publication number: 20180261371
    Abstract: A reactor includes an outer peripheral iron core, and at least three core coils contacting or connected to an inner surface of the outer peripheral iron core. Each of the core coils includes a core and a coil wound onto the core. The reactor includes an attachment unit disposed on one end surface of the outer peripheral iron core, to attach the outer peripheral iron core in a predetermined position. At least one ventilation port is formed in an extension portion of the attachment unit.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 13, 2018
    Applicant: FANUC CORPORATION
    Inventors: Kenichi Tsukada, Masatomo Shirouzu