Patents by Inventor Isao Fukumoto

Isao Fukumoto 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: 11114924
    Abstract: Various embodiments include a squirrel-cage rotor for an asynchronous machine comprising: a first shaft journal; a second shaft journal; a laminated rotor core; and a filler body cast onto the laminated rotor core connecting the filler body and the laminated rotor core in a rotationally fixed manner. The filler body is connected to the shaft journals in a rotationally fixed manner and a torque applied to the shaft journals is transmitted to the laminated rotor core.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: September 7, 2021
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Publication number: 20210273523
    Abstract: Various embodiments include a driving device for a motor vehicle comprising: an electric machine with a stator and a rotor driven by the stator for propelling the motor vehicle; a blower wheel driven by the rotor to convey air for cooling at least a first portion of the electric machine; an electric component supplying the electric machine with electrical energy; and a heat exchanger downstream of the blower wheel transferring heat from a coolant to the air flowing around the heat exchanger.
    Type: Application
    Filed: August 28, 2019
    Publication date: September 2, 2021
    Applicant: Vitesco Technologies Germany GmbH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Publication number: 20210194304
    Abstract: A rotor shaft arrangement for an electric motor or for an electrodynamic machine. The rotor shaft arrangement has a rotor shaft, and a fluid passage, which is arranged at least partially within the rotor shaft and is designed to carry a cooling fluid along a longitudinal extent direction of the fluid passage. The rotor shaft arrangement furthermore has at least one feed channel, which is arranged at least partially within the rotor shaft and is connected to the fluid passage at one end of the fluid passage. The at least one feed channel is configured and/or designed to produce fluid communication between the fluid passage and a fluid feed that stores the cooling fluid, wherein the feed channel is arranged with respect to the longitudinal extent direction of the fluid passage so as to form a bend at the end of the fluid passage.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Applicant: Vitesco Technologies GMBH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Publication number: 20200244138
    Abstract: An electric machine for arrangement in a transmission housing, having an adapter device, an axle connected to the adapter device, a rotor arranged on the axle by a bearing device so as to be rotatable about the axle, and a stator which surrounds the rotor in a circumferential direction and which is arrangeable spaced apart from the rotor, and at least partially fixable, in the adapter device, wherein the adapter device partially covers the rotor and/or the stator.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Applicant: Vitesco Technologies GMBH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Patent number: 10608485
    Abstract: The disclosure relates to a rotor for a permanently excited electric machine. The rotor includes a holding pocket which is formed by a cutout of the rotor and which is designed to receive a permanent magnet. At least one flexible limb projects into the holding pocket of the rotor, and is designed to form an interference fit together with a circumferential boundary of the holding pocket and the permanent magnet arranged between the at least one flexible limb and the circumferential boundary.
    Type: Grant
    Filed: February 18, 2018
    Date of Patent: March 31, 2020
    Assignee: Continental Automotive GmbH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Publication number: 20190356187
    Abstract: Various embodiments include a rotor for an electric machine comprising: a laminated rotor core; a filler body comprising an aluminum die-cast alloy cast onto the laminated rotor core; a first shaft journal having an air inlet opening; a second shaft journal having an air outlet opening; and a ventilation unit. The filler body connects the laminated rotor core rotationally conjointly to the shaft journals. The laminated rotor core includes a central axial bore partially filled by the filler body forming an axial cooling channel for cooling air within the central axial bore. The shaft journals drive the ventilation unit. Rotation of the ventilation unit draws an air stream in via the air inlet opening, conveys said air stream through the axial cooling channel, and discharges said air stream via the air outlet opening.
    Type: Application
    Filed: December 13, 2017
    Publication date: November 21, 2019
    Applicant: CPT Group GmbH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Publication number: 20190207449
    Abstract: Various embodiments may include a rotor for an electric machine, the rotor comprising: a first shaft journal; a second shaft journal; a laminated rotor core; a filler body cast onto the laminated rotor core wherein the filler body and the laminated rotor core rotate conjointly; and a cooling duct extending through the shaft journals and the filler body along an axis of the filler body and the rotor core. The filler body rotates with the shaft journals and a torque applied to the shaft journals is transmitted to the laminated rotor core.
    Type: Application
    Filed: August 1, 2017
    Publication date: July 4, 2019
    Applicant: CPT Group GmbH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Publication number: 20190181736
    Abstract: Various embodiments include a squirrel-cage rotor for an asynchronous machine comprising: a first shaft journal; a second shaft journal; a laminated rotor core; and a filler body cast onto the laminated rotor core connecting the filler body and the laminated rotor core in a rotationally fixed manner. The filler body is connected to the shaft journals in a rotationally fixed manner and a torque applied to the shaft journals is transmitted to the laminated rotor core.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 13, 2019
    Applicant: CPT Group GmbH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Publication number: 20180175683
    Abstract: The disclosure relates to a rotor for a permanently excited electric machine. The rotor includes a holding pocket which is formed by a cutout of the rotor and which is designed to receive a permanent magnet. At least one flexible limb projects into the holding pocket of the rotor, and is designed to form an interference fit together with a circumferential boundary of the holding pocket and the permanent magnet arranged between the at least one flexible limb and the circumferential boundary.
    Type: Application
    Filed: February 18, 2018
    Publication date: June 21, 2018
    Applicant: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Holger Fröhlich, Isao Fukumoto
  • Patent number: 9859672
    Abstract: The present disclosure teaches an electric machine including a housing for receiving a rotor unit and a connecting unit. The rotor unit may rotate around an axis of rotation and have a rotor shaft and a first sliding surface. The connecting unit may include a carrier, a contact part, and a spring part. The carrier part may be made of an electrically conductive material and at least partially surround the rotor shaft and is firmly connected to the housing. The contact part may be made of an electrically conductive material, including a second sliding surface. The spring part may be made of an electrically conductive material, at least partially surrounding the rotor shaft. The spring part may be firmly connected to the carrier part and the contact part and press the contact part against the first sliding surface so the sliding surfaces form the electrically conductive sliding contact.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: January 2, 2018
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Isao Fukumoto
  • Publication number: 20160233636
    Abstract: The present disclosure teaches an electric machine including a housing for receiving a rotor unit and a connecting unit. The rotor unit may rotate around an axis of rotation and have a rotor shaft and a first sliding surface. The connecting unit may include a carrier, a contact part, and a spring part. The carrier part may be made of an electrically conductive material and at least partially surround the rotor shaft and is firmly connected to the housing. The contact part may be made of an electrically conductive material, including a second sliding surface. The spring part may be made of an electrically conductive material, at least partially surrounding the rotor shaft. The spring part may be firmly connected to the carrier part and the contact part and press the contact part against the first sliding surface so the sliding surfaces form the electrically conductive sliding contact.
    Type: Application
    Filed: September 18, 2014
    Publication date: August 11, 2016
    Applicant: Continental Automotive GmbH
    Inventor: Isao FUKUMOTO
  • Patent number: 8156922
    Abstract: An electrical actuating arrangement for an internal combustion engine includes an electric drive motor disposed in a housing body. The electric drive motor includes a motor housing with a drive side closed by a plastic front plate. A mounting flange is disposed on a drive side of the electric drive motor, the mounting flange being integral with the motor housing. The plastic front plate extends at least partially radially beyond the motor housing and is configured to seat via a clamping fit in a corresponding recess of the housing body so as to radially fix the electric drive motor.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: April 17, 2012
    Assignee: Pierburg GmbH
    Inventors: Michael Glaesser, Isao Fukumoto, Ralf Neise, Peter Nitsch
  • Publication number: 20100326397
    Abstract: An electrical adjusting arrangement for an internal combustion engine includes an electric drive motor disposed in a housing body. The electric drive motor includes a motor housing with a drive side closed by a plastic front plate. A mounting flange is disposed on a drive side of the electric drive motor, the mounting flange being integral with the motor housing. The plastic front plate extends at least partially radially beyond the motor housing and is configured to seat via a clamping fit in a corresponding recess of the housing body so as to radially fix the electric drive motor.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 30, 2010
    Applicant: PIERBURG GMBH
    Inventors: Michael Glaesser, Isao Fukumoto, Ralf Neise, Peter Nitsch
  • Publication number: 20070283923
    Abstract: Known adjusting devices, in a drive motor and subsequent gearing which is arranged in a housing and closed by a lid, have conductors to produce contact of a motor, a plug, or an electronic control system, which conductors are welded to the corresponding mating contacts or are embodied as corresponding plug contacts. According to the invention conductors are employed as a stamped grid and sheathed with the plastic of a lid. Moreover the opposite ends of the conductors are likewise sheathed by a plastic of the housing. Non-sheathed sections of the conductors arranged between the two housing parts serve according to the invention as a hinge to produce the defined opening and closing of the lid relative to the housing. Moreover, the entire electronic control system with an angle sensor and power transistors is integrated in the lid by injection molding.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 13, 2007
    Applicant: PIERBURG GMBH
    Inventors: Rachid Khelifati, Isao Fukumoto
  • Patent number: 6982511
    Abstract: A pole ring suitable for d.c. motors is provided. The pole ring includes several retaining projections provided at the outer circumference for the secure retainment in a motor housing. The retaining projections have retaining surfaces pointing oppositely to the mounting direction. The retaining surfaces affix the vole ring in the soft material, such as aluminum diecasting or plastic, for example, of the motor housing.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: January 3, 2006
    Assignee: Pierburg GmbH
    Inventors: Ismail Önder, Isao Fukumoto
  • Publication number: 20040041487
    Abstract: A pole ring particularly suitable for d.c. motors comprises several retaining projections (34,36) provided at the outer circumference (32) for the secure retainment in a motor housing (10). The retaining projections (34,36) comprise retaining surfaces (40) pointing oppositely to the mounting direction (38). Fixing is effected via the retaining surfaces (40) in a housing (10) made of a soft material, such as aluminum diecasting or plastic, for example.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 4, 2004
    Applicant: Pierburg GmbH
    Inventors: Ismail Onder, Isao Fukumoto
  • Patent number: 6581569
    Abstract: A valve control unit, especially for internal combustion engines, having a valve fixed on a valve spindle which is mounted for angular rotation in a valve body supporting a control motor for positioning the valve spindle. The motor is coupled to the valve spindle through a gear mechanism and is disposed in the valve body with a sensor unit for sensing an adjusted angular position of the valve spindle. A cover is provided to be fastened on the valve body and the cover supports an electric clutch element, a bearing for an end of the motor shaft of the control motor and functional parts of the control motor such that assembly of the control motor is completed upon mounting the cover on the valve body.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: June 24, 2003
    Assignee: Pierburg GmbH
    Inventors: Mirko Arsic, Michael Jäger, Isao Fukumoto, Detlev Oellrich, Günter Preub, Edward Wieczorek
  • Patent number: 6497085
    Abstract: A coin wrapping machine includes a discriminator for discriminating whether or not a coin is acceptable, a denomination of the coin when the coin is acceptable and whether or not the denomination of the coin coincides with that specified and counting coins of the specified denomination, a coin stacking device for stacking coins of the denomination to be wrapped, a reference stacked coin height data memory for storing reference stacked coin height data for each denomination of coins stacked by the coin stacking device, and a coin number discrepancy detecting device including a comparator for comparing a height of stacked coins and the reference stacked coin height data for each denomination stored in the reference stacked coin height data memory, the discriminator being made responsive to inclusion in coins of the specified denomination of new issue coins and past issue circulating coins for discriminating whether each coin is a new issue coin or a past issue circulating coin, determined based on a count made
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: December 24, 2002
    Assignee: Laurel Precision Machines Co., Ltd.
    Inventors: Isao Fukumoto, Mitsumasa Tsuruda, Minguo Wang
  • Publication number: 20020023416
    Abstract: A coin wrapping machine includes a discriminator for discriminating whether or not a coin is acceptable, a denomination of the coin when the coin is acceptable and whether or not the denomination of the coin coincides with that specified and counting coins of the specified denomination, a coin stacking device for stacking coins of the denomination to be wrapped, a reference stacked coin height data memory for storing reference stacked coin height data for each denomination of coins stacked by the coin stacking device, and a coin number discrepancy detecting device including a comparator for comparing a height of stacked coins and the reference stacked coin height data for each denomination stored in the reference stacked coin height data memory, the discriminator being made responsive to inclusion in coins of the specified denomination of new issue coins and past issue circulating coins for discriminating whether each coin is a new issue coin or a past issue circulating coin, and the coin number and discrepan
    Type: Application
    Filed: August 21, 2001
    Publication date: February 28, 2002
    Applicant: LAUREL PRECISION MACHINES CO., LTD.
    Inventors: Isao Fukumoto, Mitsumasa Tsuruda, Minguo Wang
  • Publication number: 20010045203
    Abstract: A valve control unit, especially for internal combustion engines, having a valve fixed on a valve spindle which is mounted for angular rotation in a valve body supporting a control motor for positioning the valve spindle. The motor is coupled to the valve spindle through a gear mechanism and is disposed in the valve body with a sensor unit for sensing an adjusted angular position of the valve spindle. A cover is provided to be fastened on the valve body and the cover supports an electric clutch element, a bearing for an end of the motor shaft of the control motor and functional parts of the control motor such that assembly of the control motor is completed upon mounting the cover on the valve body.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 29, 2001
    Applicant: PIERBURG AG
    Inventors: Mirko Arsic, Michael Jager, Isao Fukumoto, Detlev Oellrich, Gunter Preub, Edward Wieczorek