Patents Examined by Nguyen N Hanh
  • Electric drive
    Patent number: 8026645
    Abstract: The invention relates to an electric drive, particularly a windshield wiper drive for vehicles, comprising an electric motor (10) in a crucible-shaped, preferably metal, motor housing (14), a gearbox housing (16) that is attached to the motor housing (14), and an arrangement for the interference suppression of the motor (10). According to the invention, at least one choke coil (46, 48) for the interference suppression of the motor (10) is disposed in the transition region from the motor housing (14) to the gearbox housing (16), wherein in this transition region means (36, 56) are provided in order to shield the filtered coil end (47, 49) projecting into the gearbox housing (16) from the interfering radiation produced by the motor (10).
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: September 27, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Armin Stubner, Martin Heyder, Matthias Koesters, Norbert Martin
  • Flux screen for generators
    Patent number: 8022591
    Abstract: A flux screen is provided for shielding a generator stator core from the magnetic field generated by end windings of the stator, wherein the flux screen comprises a frontside to be at least indirectly facing the end windings of the generator and a backside to be at least indirectly facing the stator core of the generator, and wherein the backside is provided with channels and/or grooves and/or pits.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: September 20, 2011
    Assignee: Alstom Technology Ltd.
    Inventors: Pascal Chay, Michael Jean-Marie Berlamont, Janusz Bialik, Johann Haldemann, Lennart Diestel-Feddersen
  • Alignment of segmented stators for electric machines
    Patent number: 8018115
    Abstract: A stator segment for a segmented stator of an electric machine includes insulative material configured for overlapping with insulative material of an adjacent stator segment to provide continuous insulation along a joint between the adjacent stator segments. Additionally, or alternatively, the stator segment can include one or more alignment tabs configured to engage a surface of an adjacent stator segment to inhibit relative axial movement between adjacent stator segments.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: September 13, 2011
    Assignee: Nidec Motor Corporation
    Inventor: David M. Lyle
  • Permanent magnet machine with offset pole spacing
    Patent number: 8018109
    Abstract: An internal permanent magnet machine has multiple rotor sections, each section having multiple rotor laminations. Permanent magnets are placed asymmetrically in lamination openings to attenuate oscillations in torque caused by harmonic components of magnetic flux.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: September 13, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Franco Leonardi, Michael W. Degner, Feng Liang
  • High power-density power generating module
    Patent number: 8013479
    Abstract: A high power-density power generating module, comprising: a magnet unit having a plurality of adjacent magnets with opposite magnet-pole arrangement against adjacent ones, each with a magnetic north pole and a magnetic south pole; and a winding unit having a plurality of adjacent windings around the adjacent magnets; wherein the magnet unit is capable of moving relatively to the winding unit and the angle between the linking direction of the magnetic north pole and the magnetic south pole of each magnet and the winding surface of each winding is larger than 0 degree and smaller than 90 degrees.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 6, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Yang Peng, Lai-Sheng Chen, Jui-Hung Liu
  • Hybrid drive device
    Patent number: 8013483
    Abstract: The hybrid drive device wherein: a case space is divided by a partition wall into a first case part and a second case part; a drive electric motor is provided in the first case part; a friction engagement element is provided in the second case part; and a through hole that communicates the case spaces is formed.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: September 6, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruhisa Suzuki, Masatoshi Adachi
  • Vibration motor holding structure and vibration motor
    Patent number: 8013486
    Abstract: There is provided a holding structure to hold a vibration motor on a circuit board with a sufficient holding strength using an inexpensive and simple means such as caulking and bonding and a vibration motor held on a circuit board using the holding structure. The holding structure having a holder clamps a vibration motor body having an eccentric weight at an end of the rotation shaft around the outer periphery from the outside and supports the vibration motor at the lower part.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: September 6, 2011
    Assignee: Minebea Motor Manufacturing Corporation
    Inventors: Mikio Umehara, Kazuaki Sato, Daichi Kadowaki
  • Stator for rotary electric machine
    Patent number: 8008831
    Abstract: A stator for a rotary electric machine with wedge members insertable into slots without being bent or folded is provided. A coupling portion is integrally formed at a non-inserted end portion, which is not inserted into a slot, of a wedge member, the coupling portion extending across an end of a partition wall portion and an end of a block portion. The wedge member and the coupling portion are formed of a synthetic resin material. Two or more coupling portions of two or more adjacently disposed wedge members are integrally formed as a continuous coupling portion.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: August 30, 2011
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Ikuo Takeshita, Shigenori Miyairi
  • Spindle motor and storage disk drive apparatus
    Patent number: 8008819
    Abstract: A spindle motor includes a rotor unit and a stator unit arranged to rotatably support the rotor unit about a central axis through a fluid dynamic pressure generated in a lubricant held within a bearing gap between the rotor unit and the stator unit. The bearing gap has an annular opening coaxial or substantially coaxial with the central axis, the lubricant defining a capillary seal near the opening within the bearing gap. An oil buffer continuously expanding outwards from the opening of the bearing gap is provided between the rotor unit and the stator unit, the oil buffer being used in temporarily storing the lubricant when the lubricant is filled into the bearing gap, and an oleophobic treatment is performed on a surface of the rotor unit and a surface of the stator unit outside the oil buffer.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: August 30, 2011
    Assignee: Nidec Corporation
    Inventor: Junya Mizukami
  • Electric motor, rotary actuator and rotary apparatus
    Patent number: 8004134
    Abstract: A rotary actuator including: a housing that rotatably supports thereinside a rotor shaft of an electric motor; an eccentric shaft portion that is provided on a protruding end portion of the rotor shaft that protrudes outside the housing; an external gear that is rotatably supported on the eccentric shaft portion via a bearing; an internal gear that is fixed to an outer surface of the housing and meshes with the external gear; and a transmitting portion that is provided on the external gear, and transmits rotation force to an external output shaft.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: August 23, 2011
    Assignee: Keihin Corporation
    Inventors: Hidefumi Abe, Hideki Sasaki, Toshiro Mayumi, Eishin Matsumoto
  • Vibration generation module capable of generating inertial and impact vibrations
    Patent number: 8004124
    Abstract: Disclosed herein is a vibration generation module capable of generating inertial and impact vibrations. The vibration generation module includes a magnetic force generation unit, an elastic force provision unit, a permanent magnet, a contactor, and an impact transmission panel.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: August 23, 2011
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Dong Soo Kwon, Tae Heon Yang
  • Horizontal linear vibrator
    Patent number: 7999421
    Abstract: The present invention provides a horizontal linear vibrator which can reduce the thickness but increase the strength of vibrations while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The casing defines an internal space therein. A first magnet is attached to an upper plate of the casing. The bracket is coupled to the lower end of the casing. The second magnet is attached to the bracket such that different poles of the first and second magnets face each other. The vibration unit has a weight, and a cylindrical coil which is provided in or under the weight. The springs are coupled to the sidewall plates of the casing or the bracket. The springs elastically support the vibration unit to allow the vibration unit to vibrate in the horizontal direction.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: August 16, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Jin Kim, Jun Kun Choi, Jae Woo Jun, Ki Suk Woo, Kwang Hyung Lee, Je Hyun Bang, Seok Jun Park, Kyung Ho Lee, Hwa Young Oh
  • Arrangement with an electric motor and a pump
    Patent number: 7999424
    Abstract: An arrangement including an electric motor driving a pump is provided. The arrangement is delivering a process fluid along a flow path, which flow path extends along a gap between a stator and a motor rotor of the electric motor. To avoid rotor dynamic instability caused by hydrodynamics in the gap flow, guiding elements are provided in the flow path.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 16, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Theo Nijhuis, Mark Van Aarsen
  • Thermal block and thermal rail
    Patent number: 7994662
    Abstract: The innovation relates to systems and methodologies for facilitating and/or enhancing heat transfer in a stage machine employed in an industrial or manufacturing environment. A thermal block and thermal rail combination and/or a thermal block and bearing rail combination draw accumulated heat away from a source of heat generated within the stage machine, and such combinations conduct the heat to a base of the stage machine. Each type of combination is conductively coupled such that the conductive coupling facilitates the translation or movement of the stage while maintaining contact to facilitate the conduction through the thermal block and thermal rail of the stage machine. The removal of the heat from the source of the heat or the accumulation of the heat within the stage machine system prevents distortion of the machine or products being manufactured or measured by the machine from the heat.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: August 9, 2011
    Assignee: Anorad Corporation
    Inventor: Devarajan Rajaraman
  • Systems, devices, and/or methods for rotating a vehicle lamp
    Patent number: 7994670
    Abstract: In certain exemplary embodiments, an apparatus for rotating one or more vehicle lamps can include a case body, a motor, a printed circuit board, and/or a gear reducing mechanism. The motor can be mounted on the outside of the case body and/or can include a case shell and/or an end cover. The revolving shaft of the motor can be supported on the case shell and/or the end cover of the motor by a first bearing and/or a second bearing respectively. The end of the revolving shaft of the motor can enter into the case body and/or be fixed with a driving gear which can engage with the gear reducing mechanism. The output shaft of the gear reducing mechanism can actuate the vehicle lamp, so as to change the direction of irradiation of the vehicle lamp.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: August 9, 2011
    Assignee: Beijing Jingwei Hirain Technologies Co., Ltd.
    Inventor: Yingcun Ji
  • Motor control apparatus, power steering apparatus and brake control apparatus
    Patent number: 7982347
    Abstract: An electric power steering apparatus including: a power system board which is received in a housing, which supports a component of a power supply circuit to supply power to a motor; a control system board which is received in the housing, which supports a component of a control circuit to control the motor, and which extends radially with respect to an axis of the motor output shaft; a rotation sensor which is provided in the housing, which is located, in an axial direction of a motor output shaft, between the motor and the control system board, and which is arranged to sense a rotational position of the motor output shaft; and an output terminal which is provided with the rotation sensor, which is connected electrically with the control system board to supply a rotational position signal of the rotation sensor to the control circuit.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: July 19, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kohtaro Shiino, Makoto Kimura, Toshiro Yoda, Haruhiko Fujita, Yoshimori Kondo, Yoshiki Sakamoto
  • Electric wire holding structure for electric compressor and electric wire holding method for electric compressor
    Patent number: 7982348
    Abstract: A structure and method for holding an electric wire connected to the inside of an electric compressor incorporating a motor. The structure has a holding member for holding an electric wire present between a connection terminal section for connection to the outside and a built-in electric device. The structure and method can reliably eliminate possibility of adverse affection to an input electric wire caused by vibration, etc. while preventing a reduction in efficiency of assembly work and an increase in size of the compressor.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: July 19, 2011
    Assignee: Sandan Corporation
    Inventor: Takehiro Hasegawa
  • Spindle motor having a fluid dynamic bearing system and a stationary shaft
    Patent number: 7982349
    Abstract: The invention relates to a spindle motor having a fluid dynamic bearing system comprising axial and radial bearings that contains a rotor component (14) which encloses a stationary shaft (12), which in turn is connected at both its ends to axially aligned bearing parts (16; 18) that are fashioned such that they form capillary sealing gaps (32; 34), a recirculation channel (28) filled with bearing fluid that connects the remote regions of the bearing to each other, and an electromagnetic drive system (42, 44) for driving the rotor component.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: July 19, 2011
    Assignee: Minebea Co., Ltd.
    Inventors: Vladimir V. Popov, Jurgen Fleig, Martin Bauer, Guido Schmid, Olaf Winterhalter, Mathias Wildpreth, Thomas Fuss, Martin Engesser, Stefan Schwamberger
  • Planar pulse motor, exposure apparatus, and device manufacturing method
    Patent number: 7982344
    Abstract: A planar pulse motor includes a movable element and a stator, wherein the movable element contains a magnetic material, and has a plurality of convex portions on a surface thereof facing the stator. The stator includes a plurality of magnetic field generators to drive the movable element, and each magnetic field generator includes a yoke having a plurality of teeth and a coil which excites the yoke. The planar pulse motor includes a controller which controls rotation of the movable element by energizing magnetic field generators selected from magnetic field generators, whose regions do not include a center line of the movable element along a driving direction of the movable element and do not include portions outside a region facing the movable element, of the plurality of magnetic field generators.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hideo Tanaka
  • Displacement type generator
    Patent number: 7982345
    Abstract: A displacement type generator including a magnet set and a coil set is provided. The magnet set includes a magnet with unidirectional magnetization and a first multi-polar magnetic structure, wherein the first multi-polar magnetic structure is disposed on the magnet. The coil set includes a magnetic center pole, a coil and a second multi-polar magnetic structure. The coil is wound on the magnetic center pole. The second multi-polar magnetic structure is disposed on the magnetic center pole and is adjacent to the first multi-polar magnetic structure. As a relative movement is generated between the magnet set and the coil set, the magnetic flux changes and causes the coil to output an induced voltage.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: July 19, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Mean-Jue Tung, Yu-Ting Huang