Patents by Inventor Shun KATO

Shun KATO 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: 20200333056
    Abstract: A refrigeration cycle apparatus includes a refrigerant circuit and a controller for controlling the refrigerant circuit. The refrigerant circuit includes a compressor, a condenser, a pressure-reducing device and an evaporator. Refrigerant circulating through the refrigerant circuit contains propane or propylene. The controller sets a degree of superheat of refrigerant at an entrance port of the compressor to be a value greater than or equal to 10 degrees.
    Type: Application
    Filed: March 9, 2018
    Publication date: October 22, 2020
    Inventors: Daisuke ITO, Shin NAKAMURA, Shun KATO, Akira ISHIBASHI
  • Patent number: 10794465
    Abstract: There is provided an electric actuator in which a speed reduction mechanism and an output portion are disposed adjacent to each other in a radial direction in an opening portion of a housing main body, a cover member has a speed reduction mechanism cover which faces and surrounds the speed reduction mechanism, an output portion cover which faces and surrounds the output portion, and a constricted portion which connects the speed reduction mechanism cover and the output portion cover, the cover member is fixed to the housing main body by a plurality of caulking portions provided on a side wall portion, and, between two adjacent caulking portions interposing the constricted portion therebetween, one of the two caulking portions of the speed reduction mechanism cover is fixed toward a central axis of the speed reduction mechanism, and the other is fixed toward a central axis of the output portion.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: October 6, 2020
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Yutaka Uematsu, Kazumi Shinkai, Shun Kato, Shuichi Kinjo, Kohei Osuga, Tadayuki Hatsuda
  • Publication number: 20200292220
    Abstract: An oil separator has a filter portion in a differential pressure generation mechanism configured to collect, by a differential pressure, lubricating oil that is in a form of mist included in high-pressure refrigerant that flows in a first pipe that is connected to a discharge port of a compressor and allows the collected lubricating oil to move downstream along an internal wall of the first pipe.
    Type: Application
    Filed: November 15, 2017
    Publication date: September 17, 2020
    Inventors: Shun KATO, Hiroki ISHIYAMA, Yusuke SHIMAZU, Daisuke ITO
  • Patent number: 10738885
    Abstract: An actuator apparatus includes an oil passage body including an oil passage therein, an electric actuator, a movable unit moved at least in a first direction and a second direction by the electric actuator, and an auxiliary device including an actuating member moved by hydraulic pressure of oil in the oil passage. When the electric actuator moves the movable unit in the second direction, the auxiliary device applies, through the actuating member to the movable unit, a force pointing in a direction that moves the movable unit in the second direction.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 11, 2020
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Hiroshi Tatsuta, Kazumi Shinkai, Shun Kato, Shuichi Kinjo, Kohei Osuga
  • Publication number: 20200246763
    Abstract: A microbubble generator is formed from at least two of a flow path constituting section that constitutes a flow path through which a liquid is passable, and a decompression member including a colliding section that is fitted into the flow path constituting section and locally reduces a cross-sectional area of the flow path to generate microbubbles in the liquid that passes through the flow path. This microbubble generator comprises includes an outlet connecting to a negative pressure producing section of the decompression member, an outside air introduction port provided in the flow path constituting section to introduce outside air, and an outside air introduction path communicating between the outside air introduction port and the outlet.
    Type: Application
    Filed: April 23, 2020
    Publication date: August 6, 2020
    Applicant: Toshiba Lifestyle Products & Services Corporation
    Inventors: Tomonori UCHIYAMA, Hironori SASAKI, Shun KATO, Takayuki HONMURA, Ken ISONAGA
  • Patent number: 10715003
    Abstract: An electric actuator includes: a motor unit; a speed reducer; a circuit board; a busbar; and a housing. The housing has a motor case and a circuit board case attached to one side of the motor case in an axial direction. The circuit board case has a bottom wall blocking an opening of the motor case. The bottom wall has a bottom wall through-hole that penetrates through the bottom wall in the axial direction on an outer side beyond the speed reducer in the radial direction. A busbar has a busbar main body section, a coil line connecting section to which a coil line extending on one side in the axial direction from a coil is connected, and a connection terminal section. The connection terminal section extends to one side of the bottom wall in the axial direction via the bottom wall through-hole and is connected to the circuit board.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: July 14, 2020
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Yutaka Uematsu, Shun Kato, Ryunosuke Oikawa, Yuzo Akasaka, Kazumi Shinkai
  • Publication number: 20200156179
    Abstract: A transfer processing unit of a processing tool for an electrode for resistance spot welding that is configured to mold, through transfer processing, a projection portion and a plurality of recess portions at an electrode tip portion bulging into a projecting shape is provided with a plurality of protrusions that are configured to mold the plurality of the recess portions respectively. A virtual plane that links tips of the plurality of these protrusions with one another assumes a shape coinciding with a surface shape of the electrode tip portion bulging into the projecting shape before transfer processing.
    Type: Application
    Filed: October 22, 2019
    Publication date: May 21, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru HIOKI, Manabu OOGA, Shun KATO
  • Publication number: 20200156178
    Abstract: An electrode tip portion is provided with a projection portion and a plurality of recess portions. The plurality of the recess portions are independent of one another, and are provided at the electrode tip portion in a dispersed manner. The projection portion is a region other than regions where the recess portions are provided, and is configured to be equipped with a continuous surface that continues in regions among the plurality of the recess portions.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 21, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru HIOKI, Manabu OOGA, Tomonori YANAGAWA, Shun KATO, Takashi GOTO, Hideaki MATSUOKA
  • Publication number: 20200099270
    Abstract: An electric actuator includes a motor portion, a circuit board, a speed reduction mechanism, a busbar holder that holds a busbar, and a housing. The housing has a motor case and a compartmental wall. The compartmental wall has a through-hole which penetrates the compartmental wall in an axial direction. The busbar holder has a base portion and a projecting portion which projects from the base portion in the axial direction and is disposed in the through-hole. An end portion of the busbar at one side projects from the busbar holder toward one side in the axial direction and is connected to the circuit board, and an end portion of the busbar at the other side projects into the through-hole from a side surface of the projecting portion of the busbar holder and is connected to a coil of a stator.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 26, 2020
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Shun KATO, Youngdae KANG, Hiroaki TAKAHASHI
  • Publication number: 20200036266
    Abstract: An electric actuator includes a motor portion that includes a motor including a motor shaft extending axially, a decelerator that is joined to one axial side of the motor shaft, and an output portion that includes an output shaft to which rotation of the motor shaft is transmitted via the decelerator. The output shaft includes a joint portion joined to a driven shaft, the output portion includes a sensor magnet and a magnet holder which holds the sensor magnet, and the magnet holder is indirectly joined to the output shaft and is fixed to the driven shaft.
    Type: Application
    Filed: March 20, 2018
    Publication date: January 30, 2020
    Inventors: Yutaka UEMATSU, Kazumi SHINKAI, Shun KATO, Shuichi KINJO, Kohei OSUGA, Tadayuki HATSUDA
  • Publication number: 20200014284
    Abstract: An electric actuator includes a motor that includes a motor shaft extending axially, a decelerator that is joined to one axial side of the motor shaft, an output that includes an output shaft to which rotation of the motor shaft is transmitted via the decelerator, and a control board that is electrically connected to at least the motor. The motor and the output are disposed radially side by side with respect to the motor, the control board extends from a position axially overlapping the motor shaft to a position axially overlapping the output shaft, and the control board includes a motor sensor that detects a rotation angle of the motor shaft, and an output sensor that detects a rotation angle of a driven shaft joined to the output shaft.
    Type: Application
    Filed: March 19, 2018
    Publication date: January 9, 2020
    Inventors: Yutaka UEMATSU, Tadayuki HATSUDA, Kazumi SHINKAI, Shun KATO, Shuichi KINJO, Fumito TAMURA
  • Patent number: 10443702
    Abstract: There is provided a breather structure of an actuator in which the breather structure is provided in a housing of the actuator, the breather structure including: a recessed groove positioned on an outer surface of the housing; a breathing hole which is positioned on a bottom surface of the recessed groove and passes through the housing in a first direction; a filter fixed to an inside of the housing so that the filter closes an opening of the breathing hole; a lid body which partially covers a region of the recessed groove including the breathing hole from an outside of the housing when viewed from the first direction; a breather opening portion positioned at a portion of the recessed groove exposed from the lid body; and a protrusion portion which protrudes from the bottom surface of the recessed groove to a side of the lid body.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: October 15, 2019
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Yutaka Uematsu, Kazumi Shinkai, Shun Kato, Shuichi Kinjo, Kohei Osuga, Tadayuki Hatsuda
  • Publication number: 20190275606
    Abstract: Provided are a method and an apparatus for resistance spot welding in which preliminary current application is executed and then main welding is executed in accordance with master patterns of various parameters obtained during the preliminary current application. The main welding is executed under welding conditions of the master patterns, and whether a welding abnormality has occurred and whether the welding abnormality is likely to occur are determined. When the welding abnormality is likely to occur, the welding conditions for the main welding are corrected so as to prevent the welding abnormality. When the welding abnormality is unlikely to occur, the welding conditions for the main welding are corrected so as to match the master patterns.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji NOMURA, Shuhei OGURA, Atsushi KAWAKITA, Naoya KATO, Toru HIOKI, Kenji FUKUSHIMA, Shun KATO, Takashi GOTO
  • Publication number: 20190207474
    Abstract: An electric actuator is provided and includes: a motor unit having a motor shaft extending in an axial direction, a speed reducer connected to one side of the motor shaft in the axial direction, an output section having an output shaft to which rotation of the motor shaft is transmitted via the speed reducer, and a housing configured to accommodate the motor unit, the speed reducer and the output section. The output shaft extends in the axial direction of the motor shaft. The housing has a housing main body with a polygonal shape when seen in the axial direction. The motor shaft and the output shaft are disposed to be arranged along a diagonal line of the housing main body when seen in the axial direction. The output shaft is disposed on a corner portion of the housing main body when seen in the axial direction.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207475
    Abstract: An electric actuator is provided and includes: a motor unit having a motor shaft extending in an axial direction, a speed reducer connected to one side of the motor shaft in the axial direction, an output section having an output shaft to which rotation of the motor shaft is transmitted via the speed reducer, and a housing accommodating the motor unit, the speed reducer and the output section. The motor shaft and the output shaft are disposed apart from each other in the radial direction of the motor shaft. The motor unit has a first bearing that rotatably supports the motor shaft. The housing has a housing main body formed of resin, and a metal member formed of metal and held by the housing main body. The metal member has a bearing holding section that holds the first bearing, and an output shaft support section that supports the output shaft.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207470
    Abstract: An electric actuator for rotating a driven shaft is provided, and includes: a motor unit, a speed reducer, a circuit board and an output section. A motor shaft of the motor unit and an output shaft of the output section are disposed apart from each other in a radial direction of the motor shaft. A rotor main body of the motor unit is fixed to a portion on the other side of the motor shaft in the axial direction. The output shaft has a cylindrical shape extending in the axial direction of the motor shaft and having an opening section on the other side in the axial direction. The driven shaft is inserted and connected to the output shaft via the opening section from the other side in the axial direction. The output shaft is disposed at a position overlapping the rotor main body in the radial direction.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207471
    Abstract: An electric actuator attached to a vehicle is provided and includes: a motor unit, a speed reducer, a circuit board, an output section, and a housing that accommodates the motor unit, the speed reducer, the circuit board and the output section. The housing has a motor case that opens at one side in an axial direction, and a circuit board case attached to one side of the motor case in the axial direction to close an opening of the motor case and accommodates the circuit board. The motor case has a motor case main body that accommodates the motor unit, and multiple attaching leg sections protruding from the motor case main body and fixed to the vehicle. The attaching leg sections protrude outward from the circuit board case when seen in the axial direction.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207473
    Abstract: An electric actuator includes: a motor part, having a motor shaft that extends in an axial direction and is rotated in both directions; a deceleration mechanism, connected to the motor shaft; a circuit board, electrically connected to the motor part; an output part, having an output shaft to which rotation of the motor shaft is transmitted through the deceleration mechanism; a sensor magnet, attached to the motor shaft; and a motor part sensor, detecting a magnetic field of the sensor magnet and detecting rotation of the motor shaft. The motor part has a rotor magnet that is fixed to the motor shaft. The rotor magnet and the sensor magnet each have multiple magnetic poles in a circumferential direction around the motor shaft. The magnetic poles of the rotor magnet and the magnetic poles of the sensor magnet are disposed to be shifted from each other in the circumferential direction.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Shun KATO, Yutaka UEMATSU, Tadayuki HATSUDA, Yuzo AKASAKA
  • Publication number: 20190207472
    Abstract: An electric actuator includes: a motor unit that has a motor shaft and a rotor main body; a speed reducer; a circuit board; an output section; a detection target section; a motor unit sensor; a preload member; and a support section. The motor shaft passes through a through-hole and penetrates through the circuit board in an axial direction. The detection target section is attached to a portion, which protrudes to one side in the axial direction beyond the circuit board, of the motor shaft. The detection target section faces a surface of the circuit board via a gap. The motor unit sensor is fixed to a portion, which faces the detection target section via a gap, of a surface of the circuit board. The preload member applies a preload to the motor shaft toward the other side in the axial direction and presses the motor shaft against the support section.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207462
    Abstract: An electric actuator includes: a motor unit; a speed reducer; a circuit board; a busbar; and a housing. The housing has a motor case and a circuit board case attached to one side of the motor case in an axial direction. The circuit board case has a bottom wall blocking an opening of the motor case. The bottom wall has a bottom wall through-hole that penetrates through the bottom wall in the axial direction on an outer side beyond the speed reducer in the radial direction. A busbar has a busbar main body section, a coil line connecting section to which a coil line extending on one side in the axial direction from a coil is connected, and a connection terminal section. The connection terminal section extends to one side of the bottom wall in the axial direction via the bottom wall through-hole and is connected to the circuit board.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI