Patents by Inventor Kazuyuki Yamaguchi

Kazuyuki Yamaguchi 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: 9254522
    Abstract: The mold clamping device is provided with a first platen to which a stationary mold is attached. A movable mold unit is capable of approaching and moving away from the stationary mold. A second platen is linked to the first platen via a tie bar. When the movable mold unit and the stationary mold are closed, a wedge member is driven onto the movable mold unit to generate mold clamping force. The second platen has a pressure receiving surface. The pressure receiving surface receives, through the wedge member, mold opening force that is generated by filling, with a molding material, the stationary mold and the movable mold unit that are in the closed state.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: February 9, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Kazuki Funahashi, Nobuyuki Haguro
  • Patent number: 9248529
    Abstract: An assembling apparatus (1) comprises a shaft member (3) having a linear assembling function and a rotational assembling function, a base (2) supporting the shaft member (3) to be movable in the axial direction and rotatable axially, and a drive unit moving in an axial direction and axially rotating the shaft member (3).
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: February 2, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Noriyasu Watanabe, Hirotsugu Miyaki, Hiroshi Tsuge, Kazuyuki Yamaguchi
  • Patent number: 9248596
    Abstract: The injection apparatus is provided with a high speed step cylinder, a pressure accumulation part and a coupling mechanism. The high speed step cylinder has a rod and an operating chamber. The coupling mechanism is capable of switching between a coupled state in which the movement of the rod is restricted, and a non-coupled state in which the coupled state is released so as to enable the rod to move due to the operating pressure. The coupling mechanism includes a first coupling member, a second coupling member and a drive source. The coupling mechanism is kept in the coupled state in which the second coupling member is rotated to less than 90°. When the second coupling member is forced to rotate in the coupled state, the first coupling member rotates such that a first contact surface is in contact with a second contact surface.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: February 2, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki Yamaguchi
  • Publication number: 20150369075
    Abstract: Provided is a rotating fluid machine capable of holding down a decrease rate of a circumferential velocity of a leakage fluid in an interspatial flow passage and thereby controlling an unstable fluid force. A steam turbine includes: an interspatial flow passage 15 formed between an outer circumferential surface of a rotor blade cover 6 and an inner circumferential surface of a grooved section 14 in a casing 1; annular sealing fins 17A to 17D spatially arranged in a direction of a rotor axis, at a side of the rotor blade cover 6 in the interspatial flow passage 15; and a friction enhancement portion (more specifically, rough surfaces 19A to 19E) disposed over the whole circumference on the side of the rotor blade cover 6 in the interspatial flow passage 15.
    Type: Application
    Filed: December 13, 2012
    Publication date: December 24, 2015
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Noriyo NISHIJIMA, Akira ENDO, Kazuyuki YAMAGUCHI
  • Patent number: 9181016
    Abstract: An injection apparatus includes an actuating cylinder, an accommodating chamber, and a volume changing part capable of changing the volume of the accommodating chamber. The actuating cylinder has an operation chamber and a piston accommodated in the operation chamber, and supplies an incompressible fluid to the injection cylinder by forcing out the incompressible fluid inside the operation chamber with the piston. The accommodating chamber is connected to the operation chamber, and holds at least some of the incompressible fluid that flows out from the operation chamber due to the piston being pushed out. The volume changing part expands the volume of the accommodating chamber, at the latest simultaneously with the start of acceleration of the actuating cylinder, and stops the expansion of the volume when the operating speed of the piston of the actuating cylinder has reached a desired speed.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: November 10, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki Yamaguchi
  • Patent number: 9177719
    Abstract: Disclosed is an edgewise wound coil manufacturing device for manufacturing an edgewise wound coil. The edgewise wound coil manufacturing device is provided with: a plurality of corners; a core having a recess formed between each pair of adjacent corners, and around which a flat wire is wrapped; a rotating part that forces the core to rotate around the central axis of the core; guide parts that hold the flat wire therebetween in the thickness direction, while guiding the flat wire in such a manner that the flat wire wraps around the core; a first moving part that forces at least one of the guide parts and the core to move in the approaching/receding direction of the other; and a controller that adjusts the amount that the first moving part moves such that the edgewise wound coil achieves the desired shape.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: November 3, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Takuya Hasegawa
  • Publication number: 20150260042
    Abstract: The invention provides an axial flow machine that effectively reduces the unstable hydrodynamic force induced by leakage flow and thereby prevents unstable vibrations. A steam turbine comprises: a ring-shaped cover 6 connected to the outer circumferential side of a rotor blade row 4; and a ring-shaped concave section 12 provided on an inner circumferential surface 8 of a casing 1 for housing the cover 6. A narrow passage 15 is formed between an outer circumferential surface 13 of the cover 6 and a bottom surface 14 of the concave section 12. A narrow inflow passage 18 is formed between an upstream lateral surface 16 of the cover 6 and an upstream lateral surface 17 of the concave section 12. A narrow outflow passage 21 is formed between a downstream lateral surface 19 of the cover 6 and a downstream lateral surface 20 of the concave section 12. Between the narrow inflow passage 18 and the narrow passage 15 lies an expanded inflow passage 22.
    Type: Application
    Filed: July 11, 2012
    Publication date: September 17, 2015
    Applicant: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Noriyo Nishijima, Akira Endo, Katsutoshi Kobayashi, Kazuyuki Yamaguchi
  • Patent number: 9108353
    Abstract: This injection apparatus injects and fills the inside of a mold with a molding material, and increases the pressure. The injection apparatus is provided with a unit for a low speed step, a unit for a high speed step, a unit for a pressure increasing step, and an injection plunger. A rod of a first unit, which is any one of the three units, is mechanically coupled to the injection plunger. A rod of a second unit, which is one of the two units other than the first unit, is mechanically coupled to the first unit. A rod of a third unit, which is the unit other than the first and second units, is mechanically coupled to the second unit.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: August 18, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Kazuki Funahashi
  • Publication number: 20150196953
    Abstract: In an injection apparatus, a first cylinder and second cylinder for driving an injection cylinder connected to an injection plunger are connected in parallel with each other with respect to the injection cylinder. A piston of the first cylinder and a piston of the second cylinder are synchronously driven by driving means. A directional control valve and first flow rate adjustment circuit are provided between one end of the injection cylinder and one end of the first cylinder. Moreover, second flow rate adjustment circuit is provided between the other end of the injection cylinder and the other ends of the first and second cylinders.
    Type: Application
    Filed: May 30, 2013
    Publication date: July 16, 2015
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Kazuki Funahashi
  • Publication number: 20150165522
    Abstract: In an injection apparatus, a first cylinder and second cylinder for driving an injection cylinder connected to an injection plunger are connected in parallel with each other with respect to the injection cylinder. A piston of the first cylinder and a piston of the second cylinder are synchronously driven by driving means. A directional control valve and flow rate adjustment circuit are provided between one end of the injection cylinder and one end of the first cylinder.
    Type: Application
    Filed: May 30, 2013
    Publication date: June 18, 2015
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Kazuki Funahashi
  • Patent number: 9056418
    Abstract: An injection apparatus includes a pressure accumulating portion connected to an operation chamber of an injection cylinder. A control unit controls the speed at which the injection cylinder moves and is connected to a rod of the injection cylinder. The control unit includes a rotary shaft that follows the movement of the rod and is capable of moving in the same direction as the rod, a conversion mechanism that converts the linear motion of the rod into the rotation of the rotary shaft, and a rotation member coupled to the rotary shaft. The control unit further includes a resistance generating member that generates a frictional resistance by coming into sliding contact with the rotation member, an actuating member that is moved by an electric drive source, and a movement mechanism that follows the movement of the actuating member and moves the resistance generating member relative to the rotation member.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: June 16, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Masaya Nakamura, Kenji Omiya
  • Patent number: 9004857
    Abstract: In a centrifugal compressor, for the purpose of preventing the positions of a diaphragm and a head flange in a radial direction from moving with respect to a casing, preventing the unstable vibration of the rotor and enabling an efficient and stable operation even on high-pressure conditions, there is provided a barrel-shaped centrifugal compressor including a casing, a diaphragm located in the casing to define a flow channel, and a head flange attached to the end of the casing by a shear key, wherein in the inner peripheral surface of the casing and the outer peripheral surface of abutment portions of the diaphragm and the head flange in which they are abutted on the inner peripheral surface of the casing, sliding key grooves which are vertical to the surfaces are provided at least two portions in a peripheral direction, and sliding keys are provided in the key grooves.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 14, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Yohei Magara, Kazuyuki Yamaguchi, Mitsuhiro Narita, Haruo Miura, Naohiko Takahashi, Akira Endo
  • Patent number: 8973737
    Abstract: A conveying apparatus includes a frame, a conveying path, a curved path, an endless traction element, a plurality of conveying tables and a table guide. The conveying path is formed in the frame so as to circulate by the curved path at which the conveying direction of the conveying path is changed. The endless traction element is disposed along the conveying path in a freely traveling manner and includes a plurality of connecting pins disposed at a predetermined interval. The conveying table has a cylindrical shape and a hole formed through the conveying table at a position eccentric from the center of the conveying table in which the connecting pin is inserted. The conveying tables are rotatably connected to the endless traction element by the connecting pins. The table guide is configured to guide the conveying table traveling on the curved path to move outwardly.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: March 10, 2015
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Kazuyuki Yamaguchi
  • Publication number: 20140369880
    Abstract: A compressor includes a drive shaft, a housing, an annular rotor, and cradles. The rotor has cradle windows. The rotor can rotate within the rotor chamber together with the drive shaft while being in sliding contact with the housing at the circumferential surface. The cradles are provided in the cradle windows to be pivotable about pivot axes. When pivoting, the cradles maintain the compression chambers in an airtight state by being in contact with the housing at pivoting ends of the cradles, the pivoting ends extending along the direction parallel to the axis. The rotor chamber includes an outer operation chamber located on the outside of the rotor, and an inner operation chamber located on the inside of the rotor. The cradles, and the outer operation chamber and/or the inner operation chamber form the compression chambers, the volumes of which are varied by the rotation of the rotor.
    Type: Application
    Filed: September 3, 2012
    Publication date: December 18, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki Yamaguchi
  • Patent number: 8876035
    Abstract: A winding core for a coil winding device having a column shape with corners each having a rounded cross-section is used for forming a coil by winding a wire around the winding core into the coil of a polygonal shape. The winding core includes a helical continuous surface extending spirally around an axis of the winding core.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 4, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Kazuyuki Yamaguchi
  • Publication number: 20140314892
    Abstract: An injection apparatus includes a pressure accumulating portion connected to an operation chamber of an injection cylinder. A control unit controls the speed at which the injection cylinder moves and is connected to a rod of the injection cylinder. The control unit includes a rotary shaft that follows the movement of the rod and is capable of moving in the same direction as the rod, a conversion mechanism that converts the linear motion of the rod into the rotation of the rotary shaft, and a rotation member coupled to the rotary shaft. The control unit further includes a resistance generating member that generates a frictional resistance by coming into sliding contact with the rotation member, an actuating member that is moved by an electric drive source, and a movement mechanism that follows the movement of the actuating member and moves the resistance generating member relative to the rotation member.
    Type: Application
    Filed: October 2, 2012
    Publication date: October 23, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Masaya Nakamura, Kenji Omiya
  • Patent number: 8857042
    Abstract: Disclosed is a method for producing a stator for a rotary electric machine, which involves preparing a stator core having a plurality of slots. Each of a plurality of coils is provided with a pair of coil ends, a first side, and a second side. The first side and/or the second side is inserted into the retaining groove of a jig, and each coil is set on the jig in a manner such that both coil ends extend further to the outside than the end surfaces of the jig in the axial direction thereof. The jig is disposed inside the stator core in the diameter direction. The space between the first side and the second side of the coil is expanded by applying pressing force to both coil ends from the axial direction of the stator core by means of a pressing member.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: October 14, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Takuya Hasegawa, Kazuyuki Yamaguchi
  • Publication number: 20140291120
    Abstract: A conveying apparatus includes a frame, a conveying path, a curved path, an endless traction element, a plurality of conveying tables and a table guide. The conveying path is formed in the frame so as to circulate by the curved path at which the conveying direction of the conveying path is changed. The endless traction element is disposed along the conveying path in a freely traveling manner and includes a plurality of connecting pins disposed at a predetermined interval. The conveying table has a cylindrical shape and a hole formed through the conveying table at a position eccentric from the center of the conveying table in which the connecting pin is inserted. The conveying tables are rotatably connected to the endless traction element by the connecting pins. The table guide is configured to guide the conveying table traveling on the curved path to move outwardly.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki YAMAGUCHI
  • Publication number: 20140295019
    Abstract: This injection apparatus injects and fills the inside of a mold with a molding material, and increases the pressure. The injection apparatus is provided with a unit for a low speed step, a unit for a high speed step, a unit for a pressure increasing step, and an injection plunger. A rod of a first unit, which is any one of the three units, is mechanically coupled to the injection plunger. A rod of a second unit, which is one of the two units other than the first unit, is mechanically coupled to the first unit. A rod of a third unit, which is the unit other than the first and second units, is mechanically coupled to the second unit.
    Type: Application
    Filed: October 2, 2012
    Publication date: October 2, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuyuki Yamaguchi, Kazuki Funahashi
  • Publication number: 20140255536
    Abstract: An injection apparatus includes a pressure accumulating portion, which is connected to an injection cylinder, and a speed reduction mechanism, which reduces the speed of the injection cylinder arranged in the injection apparatus. The speed reduction mechanism includes an actuating member, which moves integrally with a rod of an injection cylinder rod, and a restriction member, which is arranged in a flow passage for draining or supplying hydraulic oil from or to the injection cylinder, and variably narrows the flow passage in conjunction with movement of the actuating member.
    Type: Application
    Filed: October 2, 2012
    Publication date: September 11, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki Yamaguchi