Patents Assigned to Koyo
  • Patent number: 10611115
    Abstract: Provided is a tank cooling device that is capable of cooling a tank more quickly. A tank cooling device 4 has a nozzle 40. The nozzle 40 is comprised to supply cooling gas for cooling a tank 100 to an outer surface of the tank 100, with the cooling gas assisted by compressed gas in the nozzle 40. The tank 100 has a tank main body 101 made by using synthetic resin and an end member 102 made by using metal. The nozzle 40 supplies a gas flow to each of the tank main body 101 and the end member 102.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: April 7, 2020
    Assignee: Koyo Thermo Systems Co., Ltd.
    Inventors: Akihito Yamamoto, Yasuhiro Sasaki, Iwao Morimoto
  • Publication number: 20200080781
    Abstract: A heater is provided to heat a metallic workpiece as a heating treatment target. In a heat treatment chamber, the heater and the workpiece are disposed. A shielding member is disposed between the heater and the workpiece inside the heat treatment chamber, and provided to be capable of shielding radiation of radiation heat from the heater to the workpiece.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Applicant: Koyo Thermo Systems Co., Ltd.
    Inventors: Takahiro NAKAMURA, Hiroaki TETSUBAYASHI, Takeshi UEDA
  • Publication number: 20200080165
    Abstract: Workpieces are disposed between a pair of side walls in a heat treatment chamber. A centrifugal fan is disposed to face the workpieces inside the heat treatment chamber, and sucks gas from the workpiece side and generates air current. In regions at the respective side wall sides relative to an intermediate position between the pair of side walls, an air current regulation unit regulates the air current so as to restrict flows of the air current from the centrifugal fan to the respective side wall sides when a rotary blade of the centrifugal fan rotates in regions in which outer circumferential edge portions of the rotating rotary blade separate from the respective side walls, and allows the flows in regions in which the outer circumferential edge portions of the rotating rotary blade approach the respective side walls.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Applicant: Koyo Thermo Systems Co., Ltd.
    Inventors: Takahiro NAKAMURA, Hiroaki TETSUBAYASHI, Takeshi UEDA
  • Publication number: 20200068670
    Abstract: Provided is a supporting structure for an induction heating coil and an induction heating device in which a surface of an induction heating coil is not formed of a coating film for insulation that generates a gas, and movement of the induction heating coil when the induction heating coil is energized can be suppressed. A supporting structure 4 of an induction heating device 1 includes a supporting column 20 and a plurality of restricting members 21. The supporting column 20 is disposed at an outer side in a radial direction of winding portions 13 of the induction heating coil 3, and extends in an axial direction S1. The restricting members 21 receive the induction heating coil 3 to restrict movement of the induction heating coil 3 in the axial direction S1 in an insulated state, and are supported by the supporting column 20.
    Type: Application
    Filed: November 29, 2017
    Publication date: February 27, 2020
    Applicant: Koyo Thermo Systems Co., Ltd.
    Inventor: Ryosuke YAMAMOTO
  • Patent number: 10562350
    Abstract: An axle assembly for a vehicle including a differential assembly, a first axle tube extending outwardly from a first side of the differential assembly and defining an axle bore, a first axle shaft rotatably received in the first axle tube, and defining an annular groove extending radially inwardly from its outer surface, a retainer nut axially fixed to a distal end of the first axle tube, the retainer nut having an annular flange extending inwardly into the axle bore and defining an annular outer raceway, a snap ring received in the annular groove, and an axial thrust component disposed in the axle bore of the first axle tube between the snap ring and the outer raceway of the retainer nut.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: February 18, 2020
    Assignee: Koyo Bearings North America LLC
    Inventor: Scott Abrahamson
  • Patent number: 10544833
    Abstract: A roller bearing assembly (100) including an outer cup (110) having a first end, a second end, a body (116) extending therebetween defining an outer raceway (118), a first flange (112) disposed on the first end of the body and a second flange (114) disposed on the second end of the body, a plurality of rollers (130), each roller including a first projection (134) extending along its longitudinal center axis, and a first retainer ring (140a) having a base side wall, an inner side wall and an outer side wall, the inner side wall and the outer side wall extending outwardly from the base wall, wherein the base wall of the first retainer ring is disposed adjacent an inner surface of the first flange and the first projection of each roller is rotatably disposed between the inner side wall and the outer side wall of the first retainer ring.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: January 28, 2020
    Assignee: Koyo Bearings North America LLC
    Inventor: Scott Abrahamson
  • Publication number: 20190337332
    Abstract: A method for manufacturing a hub unit includes: preparing a hub unit intermediate including an inner shaft, an inner ring fixed to an axial end of the inner shaft, and an outer ring rotatably arranged with respect to the inner shaft and the inner ring; preparing a magnetic seal member including a seal member and an annular magnetic member having no magnetic pole; and arranging the magnetic seal member between the inner ring and the outer ring of the hub unit intermediate. The method further includes: forming splines extending along the axial direction by cutting the inner circumferential surface of the inner shaft of the hub unit intermediate in which the magnetic seal member has been arranged; and forming magnetic poles in a circumferential direction of the magnetic member of the hub unit intermediate in which the plurality of splines have been formed.
    Type: Application
    Filed: September 15, 2017
    Publication date: November 7, 2019
    Applicants: JTEKT CORPORATION, KOYO SEALING TECHNO CO., LTD.
    Inventors: Atsushi OHASHI, Hiroshi SHIME, Hiroyuki ORISAKA
  • Patent number: 10458474
    Abstract: A radial support bearing assembly for use within a steering column assembly having an outer tube and a shaft, including at least one inner ring defining an inner raceway, the inner ring being axially fixed relative to the shaft, at least one outer ring defining an outer raceway, and a plurality of roller elements disposed between the at least one inner ring and the at least one outer ring in rolling contact with the inner raceway and the outer raceway. The inner ring is in direct contact with the shaft and has a circular cross-section as taken in a plane parallel to a longitudinal center axis of the shaft.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 29, 2019
    Assignee: Koyo Bearings North America LLC
    Inventors: Patrick Dupuis, Fabrice Lemaitre
  • Publication number: 20190308272
    Abstract: An induction heating coil includes a coil section configured to heat a treatment target by induction, a power supply section configured to supply power to the coil section, and a cooling medium passage that is arranged in the power supply section and the coil section, and is configured to supply a cooling medium to the coil section. The coil section, the power supply section, and the cooling medium passage are formed using a metal additive fabrication method.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 10, 2019
    Applicant: Koyo Thermo Systems Co., Ltd.
    Inventors: Ryosuke YAMAMOTO, Ayaka NAKATA, Norihide FUJIYAMA
  • Patent number: 10385957
    Abstract: A follower mechanism including an outer cup having a substantially cylindrical side wall, an annular lip portion disposed at a first end of the side wall, and an annular ledge disposed on the side wall, the annular ledge being disposed in a plane that is transverse to a longitudinal center axis of the follower mechanism. An inner cup includes an annular lip extending outwardly therefrom and a pair of shaft apertures, and is disposed in the outer cup so that the lip abuts the annular ledge of the outer cup and is non-rotatably fixed thereto by the annular lip of the outer cup which abuts the lip of the inner cup. A shaft is received in the shaft apertures, and a roller follower is rotatably received on the shaft such that a portion of the roller follower extends axially outwardly beyond the annular lip portion of the outer cup.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 20, 2019
    Assignee: Koyo Bearings North America LLC
    Inventor: Scott Abrahamson
  • Patent number: 10384310
    Abstract: An induction heating coil includes a coil section configured to heat a treatment target by induction, a power supply section configured to supply power to the coil section, and a cooling medium passage that is arranged in the power supply section and the coil section, and is configured to supply a cooling medium to the coil section. The coil section, the power supply section, and the cooling medium passage are formed using a metal additive fabrication method.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 20, 2019
    Assignee: Koyo Thermo Systems Co., Ltd.
    Inventors: Ryosuke Yamamoto, Ayaka Nakata, Norihide Fujiyama
  • Patent number: 10377932
    Abstract: A sealing rubber composition includes acrylic rubber, artificial graphite, and coupling agent.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: August 13, 2019
    Assignees: JTEKT CORPORATION, KOYO SEALING TECHNO CO., LTD.
    Inventors: Takeshi Kawabayashi, Fumiaki Kasahara, Katsuhiko Kusunoki
  • Patent number: 10376990
    Abstract: An induction heating coil includes a coil section configured to heat a treatment target by induction, a power supply section configured to supply power to the coil section, and a cooling medium passage that is arranged in the power supply section and the coil section, and is configured to supply a cooling medium to the coil section. The coil section, the power supply section, and the cooling medium passage are formed using a metal additive fabrication method.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: August 13, 2019
    Assignee: Koyo Thermo Systems Co., Ltd.
    Inventors: Ryosuke Yamamoto, Ayaka Nakata, Norihide Fujiyama
  • Patent number: 10365043
    Abstract: A shaft of a stirring fan for a heat treatment apparatus includes a blade fixing portion for fixing a plurality of blades. The blade fixing portion has a cylindrical portion extending in a shaft direction of the shaft. A hole inside the cylindrical portion is open to one end face of the shaft. The stirring fan has a discharge portion for discharging gas inside the cylindrical portion to the outside of the blade fixing portion. The discharge portion is open to the outside of the blade fixing portion, at a position away from the one end face of the shaft.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 30, 2019
    Assignee: Koyo Thermo Systems Co., Ltd.
    Inventors: Hiromi Kakazu, Norihide Fujiyama, Masanori Okumura, Takeshi Ueda
  • Patent number: 10247308
    Abstract: A sealing device includes an annular seal portion formed of an elastic material. On an inner peripheral surface of the seal portion, a main lip is formed so as to be in slidable contact with an outer peripheral surface of a rotary shaft, and a vacuum space side inclined surface is formed so as to gradually enlarge in diameter from the main lip toward a vacuum space side. On the vacuum space side inclined surface, a plurality of annular projections are formed along an axial direction so as to be in slidable contact with the outer peripheral surface of the rotary shaft in a state where the main lip is in slidable contact with the outer peripheral surface of the rotary shaft.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: April 2, 2019
    Assignees: Koyo Sealing Techno Co., Ltd., Nabtesco Corporation
    Inventors: Kazuha Ikebukuro, Koji Kubota, Shuji Kurita
  • Patent number: 10240674
    Abstract: A sealing device which allows the man-hour for mounting the sealing device to be reduced is provided. A sealing device includes: a slinger fitted and fixed to an end portion of an inner shaft; a core metal fitted and fixed to an end portion of an outer ring; an inner seal lip fixed to the core metal and in slidable contact with the slinger; an outer seal lip fixed to the core metal radially outward of the inner seal lip and in slidable contact with a side surface of a flange portion; and a labyrinth lip fixed to the core metal radially outward of the outer seal lip and forming a labyrinth seal together with the side surface of the flange portion.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 26, 2019
    Assignees: Koyo Sealing Techno Co., Ltd., JTEKT Corporation
    Inventors: Shintaro Sakai, Katsuyuki Sakaji, Yoshito Takada
  • Publication number: 20190049183
    Abstract: Provided is a heat treatment apparatus capable of more reliably conveying a workpiece along a desired conveyance path by a simple configuration. A heat treatment apparatus 1 includes a heating chamber 7, a cooling chamber 8 disposed adjacent to the heating chamber 7, a conveyance tray 2 to support the workpiece 100, and a first conveyance mechanism 3 to convey the conveyance tray 2 along a conveyance path B1 from the outside of the heating chamber 7 to the outside of the cooling chamber 8 through the heating chamber 7 and the cooling chamber 8.
    Type: Application
    Filed: June 13, 2016
    Publication date: February 14, 2019
    Applicant: Koyo Thermo Systems Co., Ltd.
    Inventors: Ryosuke YAMAMOTO, Manabu SATO
  • Patent number: 10183529
    Abstract: An axle assembly for a vehicle including a differential assembly, a first axle tube extending outwardly from a first side of the differential assembly and defining an axle bore, a first axle shaft rotatably received in the first axle tube, and defining an annular groove extending radially inwardly from its outer surface, a retainer nut axially fixed to a distal end of the first axle tube, the retainer nut having an annular flange extending inwardly into the axle bore and defining an annular outer raceway, a snap ring received in the annular groove, and an axial thrust component disposed in the axle bore of the first axle tube between the snap ring and the outer raceway of the retainer nut.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: January 22, 2019
    Assignee: KOYO BEARINGS NORTH AMERICA LLC
    Inventor: Scott Abrahamson
  • Patent number: 10183158
    Abstract: A connecting structure for medical use includes a first connecting portion 1 and a second connecting portion 2. The first connecting portion 1 includes a threadedly engageable portion 22a, a support portion 22b and a sealing portion 14. The second connecting portion 2 includes a threadedly engageable portion 2c and a sealing portion 2b. The threadedly engageable portions are threadedly engageable with each other. The sealing portions are joinable to each other by advancement of a threaded engagement between the threadedly engageable portions. An operating cylinder 30 is mounted on an outer periphery of the support portion 22b. A torque limiting mechanism 40 is disposed between the operating cylinder 30 and the support portion 22b. The sealing portions 14, 2b can be joined by turning the operating cylinder 30 in a threaded engagement advancing direction.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 22, 2019
    Assignee: Koyo Sangyo Co., Ltd.
    Inventors: Takayuki Miyazaki, Hiroki Watanabe, Mitsunari Sasagawa
  • Publication number: 20190017589
    Abstract: A pin assembly for use in a planetary gear including a pin including a cylindrical side wall defining a central bore that extends from a first end to a second end of the pin along its longitudinal center axis, an inlet bore, and a first annular groove that extends radially outwardly into the side wall of the pin adjacent the first end. A first cylindrical plate includes a first side wall, a second side wall, and a cylindrical outer wall extending therebetween, the first plate being disposed within the first annular groove of the pin, wherein a width of the first plate in a direction parallel to the longitudinal center axis is less than a width of the first annular groove in the direction parallel to the longitudinal center axis so that the first plate is axially slidable within the first annular groove.
    Type: Application
    Filed: January 6, 2017
    Publication date: January 17, 2019
    Applicant: Koyo Bearings North America LLC
    Inventors: Yoshitaka WASEDA, Cole A. HUME, Joseph C. WOODS, JR., Giovanni DIMATTEO