Patents Assigned to Tokuden Co., Ltd.
  • Patent number: 9709262
    Abstract: A superheated steam recycling apparatus includes a superheated steam generating part; a steam supply flow path for supplying saturated steam to the superheated steam generating part; a superheated steam utilization part that is supplied with superheated steam generated by the superheated steam generating part; a steam return flow path for returning used steam having passed through the superheated steam utilization part to the superheated steam generating part; and a flowmeter that measures a flow rate of the used steam returned to the superheated steam generating part, and on the basis of the difference between a desired flow rate of the superheated steam to be generated by the superheated steam generating part and the flow rate of the used steam obtained by the flowmeter, controls a flow rate of the saturated steam to be supplied to the superheated steam generating part through the steam supply flow path.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: July 18, 2017
    Assignee: Tokuden Co., Ltd.
    Inventors: Toru Tonomura, Yasuhiro Fujimoto
  • Patent number: 9622297
    Abstract: The present invention is one that uniformly and simultaneously heats a plurality of cup-shaped or annular metallic bodies to improve productivity, and has a plurality of divided core parts formed by dividing an annular core; configured such that a plurality of divided end parts of the divided core part are respectively attached with metallic bodies W made of non-magnetic metal; and inductively heats the metallic bodies W through input windings provided in outer or inner circumferential parts of the metallic bodies W.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 11, 2017
    Assignee: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Yasuhiro Fujimoto
  • Patent number: 9474109
    Abstract: An induction heating apparatus capable of heating a conductive plate member throughout in a widthwise direction is disclosed. Specifically, the present invention is configured to have flat-shaped coils, each forming a magnetic path in a center portion thereof, provided on upper and lower sides of the conductive plate member so as to heat the conductive plate member and to have circumferential coils provided on right and left end sides of magnetic metal casings through which the circumferential magnetic paths of the flat-shaped coils pass, whereby magnetic paths of the circumferential coils pass through both end portions of the conductive plate member.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: October 18, 2016
    Assignee: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Yasuhiro Fujimoto
  • Patent number: 9277599
    Abstract: The present invention is one that heats the inside of the spinning pack in a short period of time while keeping temperature of an outer circumferential part of a spinning pack less than a maximum allowable temperature, and provided with: a magnetic path forming member that forms a magnetic path with a spinning pack arrangement space where the spinning pack is arranged to occupy the space and be positioned intermediate respective ends of the magnetic path forming member that border the space; and a magnetic flux generating winding that is provided so as to be wound to surround the spinning pack arrangement space.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 1, 2016
    Assignee: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Yasuhiro Fujimoto
  • Publication number: 20140093599
    Abstract: The present invention is one that heats the inside of the spinning pack in a short period of time while keeping temperature of an outer circumferential part of a spinning pack less than a maximum allowable temperature, and provided with: a magnetic path forming member that forms a magnetic path with a spinning pack arrangement space where the spinning pack is arranged to occupy the space and be positioned intermediate respective ends of the magnetic path forming member that border the space; and a magnetic flux generating winding that is provided so as to be wound to surround the spinning pack arrangement space.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 3, 2014
    Applicant: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Yasuhiro Fujimoto
  • Publication number: 20140042151
    Abstract: The present invention relates to an induction heating apparatus capable of heating a conductive plate member throughout in a widthwise direction. Specifically, the present invention is configured to have flat-shaped coils, each forming a magnetic path in a center portion thereof, provided on upper and lower sides of the conductive plate member so as to heat the conductive plate member and to have circumferential coils provided on right and left end sides of magnetic metal casings through which the circumferential magnetic paths of the flat-shaped coils pass, whereby magnetic paths of the circumferential coils pass through both end portions of the conductive plate member.
    Type: Application
    Filed: August 13, 2012
    Publication date: February 13, 2014
    Applicant: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Yasuhiro Fujimoto
  • Publication number: 20130146589
    Abstract: The present invention is one that uniformly and simultaneously heats a plurality of cup-shaped or annular metallic bodies to improve productivity, and has a plurality of divided core parts formed by dividing an annular core; configured such that a plurality of divided end parts of the divided core part are respectively attached with metallic bodies W made of non-magnetic metal; and inductively heats the metallic bodies W through input windings provided in outer or inner circumferential parts of the metallic bodies W.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 13, 2013
    Applicant: TOKUDEN CO., LTD.
    Inventor: TOKUDEN CO., LTD.
  • Patent number: 7420141
    Abstract: A thermal processing roller includes a heat transfer medium flowing path therein and heats a member to be processed abutting against a surface of the roller or absorbs heat therefrom by heat transfer fluid flowing through the heat transfer medium flowing path, wherein a sealed chamber extending in a longitudinal direction of the roller and in which heat transfer medium of vapor-liquid two phases is sealed is formed within a thick portion of the roller.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: September 2, 2008
    Assignee: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Toru Tonomura, Kozo Okamoto, Shigeyuki Hirota, Masanobu Heguri, Toshiki Hanafusa
  • Patent number: 6992272
    Abstract: A thermal processing roller includes a heat transfer medium flowing path therein and heats a member to be processed abutting against a surface of the roller or absorbs heat therefrom by heat transfer fluid flowing through the heat transfer medium flowing path, wherein a sealed chamber extending in a longitudinal direction of the roller and in which heat transfer medium of vapor-liquid two phases is sealed is formed within a thick portion of the roller.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: January 31, 2006
    Assignee: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Toru Tonomura, Kozo Okamoto, Shigeyuki Hirota, Masanobu Heguri, Toshiki Hanafusa
  • Publication number: 20040089654
    Abstract: A thermal processing roller includes a heat transfer medium flowing path therein and heats a member to be processed abutting against a surface of the roller or absorbs heat therefrom by heat transfer fluid flowing through the heat transfer medium flowing path, wherein a sealed chamber extending in a longitudinal direction of the roller and in which heat transfer medium of vapor-liquid two phases is sealed is formed within a thick portion of the roller.
    Type: Application
    Filed: September 23, 2003
    Publication date: May 13, 2004
    Applicant: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Toru Tonomura, Kozo Okamoto, Shigeyuki Hirota, Masanobu Heguri, Toshiki Hanafusa
  • Patent number: 6670588
    Abstract: An inverter in which the three-phase power source is used as an input power source and the single phase voltage is outputted, is provided. The single phase output voltage of the inverter is applied onto the inductive coil of the inductive heat generation mechanism provided inside the rotating roller as the exciting voltage. Because the single phase voltage obtained by being phase-converted by the inverter is used, the unbalance is not generated among the phases of the three-phase power source which is the input power source.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: December 30, 2003
    Assignee: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Kozo Okamoto, Yukio Horie
  • Patent number: 6437301
    Abstract: In an induction heating roller apparatus of the present invention, Rolling bearings 10 and a sliding bearings 14 are provided between drive shafts 2 of a roller body 1 and a support rod 9. When a trouble occurs in the rolling bearings 10, a rotational torque is transmitted from the drive shafts 2 through the rolling bearings 10 to the support rod 9. The sliding bearings 14 operate during the transmission of the rotational torque to the support rod 9, and the rolling bearings 10 slips relative to the support rod 9. The slip prevents that the support rod 9 co-rotates with the drive shafts.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: August 20, 2002
    Assignee: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Kozo Okamoto, Yukio Horie
  • Patent number: 6373035
    Abstract: A relay box is fastened to the end of a support rod supporting an induction heating mechanism, which the end is extended outside. Receptacles of connectors are mounted on a surface of the relay box. Lead wires connected to the induction coils are connected to the receptacles. Plugs are removably pin-connected to the receptacles. Power lines connecting to the exciting power source are connected to the plugs.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: April 16, 2002
    Assignee: Tokuden Co., Ltd.
    Inventors: Kozo Okamoto, Yoshihiko Yamamura
  • Publication number: 20020020698
    Abstract: A relay box is fastened to the end of a support rod supporting an induction heating mechanism, which the end is extended outside. Receptacles of connectors are mounted on a surface of the relay box. Lead wires connected to the induction coils are connected to the receptacles. Plugs are removably pin-connected to the receptacles. Power lines connecting to the exciting power source are connected to the plugs.
    Type: Application
    Filed: June 20, 2001
    Publication date: February 21, 2002
    Applicant: TOKUDEN CO., LTD.
    Inventors: Kozo Okamoto, Yoshihiko Yamamura
  • Patent number: 6340811
    Abstract: Twelve induction coils axially arrayed on a roller are arranged into: a first group of induction coils delta connected induction coils excited by a three-phase voltage; a second group of star-connected induction coils being successively disposed while being spaced apart in the phase rotation direction of the first group of induction coils; a third group of delta-connected induction coils being excited by a phase-shifted voltage formed by phase-shifting a three-phase voltage by 180° and being successively disposed while being spaced apart in the phase rotation direction of the second group of induction coils; and a fourth group of star-connected induction coils being excited by a phase-shifted voltage and being successively disposed while being spaced apart in the phase rotation direction of the third group of induction coils.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: January 22, 2002
    Assignee: Tokuden Co., Ltd.
    Inventor: Toru Tonomura
  • Publication number: 20020003138
    Abstract: Twelve induction coils axially arrayed on a roller are arranged into: a first group of induction coils delta connected induction coils excited by a three-phase voltage; a second group of star-connected induction coils being successively disposed while being spaced apart in the phase rotation direction of the first group of induction coils; a third group of delta-connected induction coils being excited by a phase-shifted voltage formed by phase-shifting a three-phase voltage by 180 ° and being successively disposed while being spaced apart in the phase rotation direction of the second group of induction coils; and a fourth group of star-connected induction coils being excited by a phase-shifted voltage and being successively disposed while being spaced apart in the phase rotation direction of the third group of induction coils.
    Type: Application
    Filed: June 21, 2001
    Publication date: January 10, 2002
    Applicant: Tokuden Co., Ltd.
    Inventor: Toru Tonomura
  • Patent number: 5895598
    Abstract: An induction heating roller apparatus comprises:a stationary shaft 23 having a plurality of hydraulic operating mechanisms 27 arranging in one line in the direction of axis, each hydraulic operating mechanism being made up of a cylinder 25 and a piston 26, and magnetic flux generating mechanisms 32 and 35 which comprise iron cores 30 and 33 and induction coils 31 and 34 wound on the latter 30 and 33; anda roller 21 which is rotatably supported on the stationary shaft 23, and has a cylindrical wall which includes jacket chambers 22 filled with a two-phase (gas and liquid) heating medium. In the apparatus, the magnetic flux generating mechanisms 32 and 35 being arranged on both sides of the stationary shaft in the direction of axis in such a manner that they are circumferentially 90.degree. away from the hydraulic operating mechanisms arranged in one line.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: April 20, 1999
    Assignee: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Kozo Okamoto
  • Patent number: 5553729
    Abstract: An induction heating roller apparatus comprises a rotatable hollow cylindrical roller body made of magnetic material, a pair of end frames for closing the opposite opening ends of the roller body, having roller driving shafts in outer sleeve form, magnetic flux generating device comprising an induction coil wound on an iron core body positioned between the pair of end frames and in the hollow portion of the roller body, a pair of sleeve-like rods projecting from the opposite end surfaces of the iron core body and inserted for relative rotation into the outer sleeve of the shafts, and a pair of auxiliary magnetic flux generating mechanism comprising auxiliary induction coils wound on annular iron cores positioned inside the end frames and fixed at the base portion at which the sleeve-like rods are connected to the iron core body, and wherein the end frames comprise fitting edges fitted in the opposite openings in the roller body, flange portions continuous with the fitting edges and adapted to be applied to th
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: September 10, 1996
    Assignee: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Kozo Okamoto
  • Patent number: 5393959
    Abstract: An induction heating winding structure 5 is installed inside a hollow roller 1, which is closed at its opposite ends by flanges 2A, 2B. Driving shafts 4A, 4B integral with the flanges having coaxial holes are rotatably supported. The induction heating winding structure 5 is supported at its opposite side by support rods 9A, 9B. The support rods are in the coaxial holes 10A, 10B of the driving shafts through bearings. The roller 1 and flanges 2A, 2B are fastened together through taper fit. When it is desired to release the roller 1 from the flanges, the driving shafts and the support rods are temporarily fastened and one driving shaft 4B is supported in a cantilever manner. The roller 1 is mounted on a transport mechanism for mounting and dismounting.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: February 28, 1995
    Assignee: Tokuden Co., Ltd.
    Inventors: Yoshio Kitano, Kozo Okamoto
  • Patent number: D771728
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: November 15, 2016
    Assignee: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Sachio Tamaki, Yasuhiro Fujimoto