Patents Examined by Joshua Benitez
-
Patent number: 9203271Abstract: A stator includes a core body provided so as to contact a substantially cylindrical peripheral-wall inner surface of a frame and having a stator coil wound thereupon, and a mold portion in which a coil end of the stator coil is molded out of resin. A gap is provided between the peripheral-wall inner surface and the mold portion.Type: GrantFiled: October 17, 2012Date of Patent: December 1, 2015Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Takeki Inoue, Kenji Funakoshi, Kazuya Yugawa
-
Patent number: 9197111Abstract: A work output device is revealed. The work output device includes two motor rotors respectively arrange at two ends of a horizontal main rotating shaft. An outer transmission shaft of each motor rotor starts rotating after the power is turned on. The rotating outer transmission shaft drives the main rotating shaft to rotate in one direction through a speed change gear mechanism. The motor rotors are synchronously driven to rotate around the main rotating shaft and move from a lower position to a higher position. At the moment, the power is turned off and the motor rotors turn back from the higher position to the lower position with the help of gravity. Thus a cycle of repetitive up-and-down half circle rotation is completed. Moreover, the main rotating shaft drives a work output shaft to rotate by a torque controller.Type: GrantFiled: November 7, 2013Date of Patent: November 24, 2015Inventor: Jui-An Tsai
-
Patent number: 9190881Abstract: Counterpart discs with respective sets of permanent magnets disposed at their periphery are rotated through an alternating sequence of repulsive and attractive positions to yield a repeating cycle of attractive and repulsive forces. At least one of the discs is freed to travel along the axis of relative rotation in response to the cyclical attractive/repulsive forces, thereby producing mechanical oscillation at a frequency determined by the number of magnetic positions in the two discs and the relative rotational speed of the discs.Type: GrantFiled: July 26, 2012Date of Patent: November 17, 2015Assignee: Tooltek Engineering CorporationInventors: Hooshang Jahani, Pegah M. Jamshidi
-
Patent number: 9184636Abstract: An electric rotating machine includes a stator having a plurality of stator teeth facing a rotor. The rotor has a plurality of pairs of permanent magnets. Permanent magnets of each pair are located in a “V” shape configuration and form a magnetic pole. Every other tooth of the plurality of stator teeth is a long stator teeth and an adjacent tooth is a short stator teeth. Adjusting recesses formed in the rotor are at symmetrical, about a d-axis of each magnetic pole, locations in a way that each of the adjusting recesses has a width made equal to a width of one of the stator teeth and their deepest levels are equidistant from a d-axis of the magnetic pole in one and the opposite circumferential directions angularly about the axis of the rotor by 56° in electrical degrees.Type: GrantFiled: January 14, 2013Date of Patent: November 10, 2015Assignee: SUZUKI MOTOR CORPORATIONInventor: Masahiro Aoyama
-
Patent number: 9184637Abstract: A rotor of a rotary electric machine according to the present invention includes: a rotor core arranged on the outer circumferential side of a rotor shaft; and a plurality of magnetic poles fixed to the rotor core and circumferentially arranged on the rotor core, the rotor including a non-magnetic ring attached by insertion to the outer circumference of the plurality of the magnetic poles and having a substantially polygonal shape in outer circumferential shape. The non-magnetic ring is configured such that the inner circumferential length L of the non-magnetic ring before assembly with respect to the length of an envelope L0 of tangent lines each between the outer circumferential surface of the magnetic pole and the outer circumferential surface of the adjacent magnetic pole is set to L?L0. An object is to obtain the rotor of the rotary electric machine capable of achieving reduction in size and cost.Type: GrantFiled: June 10, 2010Date of Patent: November 10, 2015Assignee: Mitsubishi Electric CorporationInventors: Akihiro Yamamura, Kazuhisa Takashima, Hidechika Fujii, Masayuki Miyaoka, Satoru Akutsu
-
Patent number: 9160208Abstract: A generator motor connected to an output shaft of an engine mounted in a work machine includes a terminal box for connecting an exterior electric-power-supplying cable to the generator motor. The terminal box includes a casing having an inner space in communication with an inside of a housing of the generator motor. A casing of the terminal box is detachably provided to the housing of the generator motor.Type: GrantFiled: March 26, 2012Date of Patent: October 13, 2015Assignee: Komatsu Ltd.Inventors: Hiroaki Murata, Kouichi Watanabe, Takao Nagano
-
Patent number: 9154004Abstract: In the rare earth sintered magnet, the ratio of R2 to the sum of R1 and R2 that are contained in crystal grain boundaries surrounding the crystal grains in the rare earth sintered magnet body is higher than the ratio of R2 to the sum of R1 and R2 in the crystal grains, and the concentration of R2 increases from the central portion of the rare earth sintered magnet body toward the surface of the rare earth sintered magnet body. In addition, the degree of unevenness in residual magnetic flux density on the surface of the rare earth sintered magnet body is smaller than 3.0%.Type: GrantFiled: March 4, 2011Date of Patent: October 6, 2015Assignee: TDK CORPORATIONInventors: Makoto Iwasaki, Fumitaka Baba, Satoshi Tanaka, Hideki Sasaki, Takahide Kurahashi, Hitoshi Maro, Keiichi Morimoto, Seiichi Endo
-
Patent number: 9134168Abstract: A vibration sensor has a first substrate, a second substrate relatively movable by an external vibration while opposed to the first substrate, an electret group having a plurality of electrets that are arrayed in a relative movement direction on a side of one of surfaces of the first substrate, and an electrode group having a plurality of electrodes that are arrayed in the relative movement direction on a side of a surface of the second substrate. The surface of the second substrate is opposed to the electret group. A positional relationship between the electret group and the electrode group changes with a relative change in position of the first and second substrates by the external vibration to output an external vibration detection signal.Type: GrantFiled: August 16, 2012Date of Patent: September 15, 2015Assignee: OMRON CorporationInventors: Tatsuakira Masaki, Toru Yokoyama, Keiki Matsuura
-
Patent number: 9130428Abstract: According to one embodiment, there is provided a 3-phase 2-pole 2-layer armature winding, housed in 72 slots provided in a laminated iron core, a winding of each phase including six parallel circuits separated into two phase belts. Upper coil pieces of first and fourth parallel circuits are placed at 3rd, 4th, 7th, and 12th positions, and lower coil pieces of the first and fourth parallel circuits are placed at 1st, 6th, 9th, and 10th positions, upper and lower coil pieces of second and fifth parallel circuits are placed at 2nd, 5th, 8th, and 11th positions, and upper coil pieces of third and six parallel circuits are placed at 1st, 6th, 9th, and 10th positions, and lower coil pieces of the third and six parallel circuits are placed at 3rd, 4th, 7th, and 12th positions, from the center of a pole.Type: GrantFiled: February 16, 2015Date of Patent: September 8, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tadashi Tokumasu, Masafumi Fujita, Takashi Ueda, Mikio Kakiuchi
-
Patent number: 9118232Abstract: A cooling system for an electric machine is provided. The cooling system includes an airflow restriction feature configured to provide airflow to a radial air channel of the electric machine.Type: GrantFiled: July 26, 2012Date of Patent: August 25, 2015Inventors: Qubo Li, Joel Hetrick
-
Patent number: 9103353Abstract: In a radiator module for a motor vehicle, a detachable connection is required between a housing of an electric motor and a retaining structure, which connection allows economic and secure assembly and cannot be loosened or detached by alternating reaction forces at the electric motor. To achieve this, an arrangement is proposed of a retaining structure and detachably connected therewith a housing for an electric motor, in which the housing has a number of radiating protruding tabs on the base side which can be inserted by successive tilt and shift movements in corresponding recesses of the retaining structure. Furthermore various methods for assembly are proposed.Type: GrantFiled: October 21, 2010Date of Patent: August 11, 2015Assignee: MAGNA Electronics Europe GmbH & Co. KGInventors: Paul McLennan, Robert Jones
-
Patent number: 9093927Abstract: An actuator includes a pair of electrodes facing each other, an intermediate layer containing an ionic liquid and arranged between the pair of electrodes, the electrodes and the intermediate layer being deformed when a potential difference larger than a potential window of the ionic liquid is applied between the electrodes, and insulating layers that suppress direct contact between ions of the ionic liquid and the electrodes, the insulating layers being arranged between the intermediate layer and the electrodes.Type: GrantFiled: November 7, 2012Date of Patent: July 28, 2015Assignee: Canon Kabushiki KaishaInventors: Tetsuo Hino, Sakae Suda, Jun Yamamoto, Sotomitsu Ikeda
-
Patent number: 9064662Abstract: A variable gap switch includes a first electrode having a first gap surface; a second electrode having a second gap surface, the second gap surface formed in an initial fluid state that hardens to substantially conform to the first gap surface, the first electrode being moveable with respect to the second electrode; an alignment guide providing substantially parallel and substantially opposed alignment of the first gap surface and the second gap surface; and a displacement mechanism positioned to provide selective movement of the first electrode with respect to the second electrode so that a gap between the electrodes is selectively adjustable.Type: GrantFiled: March 30, 2012Date of Patent: June 23, 2015Assignee: The United States of America as represented by Secretary of the NavyInventor: Jack Y. Dea
-
Patent number: 9059621Abstract: The present invention provides an electric rotating machine capable of providing a high quality and efficient machine operation with reduced oscillation and noise by lowering torque ripple. The electric rotating machine includes a stator having a plurality of teeth facing a rotor, and a plurality of slots providing spaces for winding coils around the teeth. The rotor has a pair of permanent magnets embedded therein and located in a “V” shape configuration so as to let magnetic force act on the teeth such that the rotor within said stator is driven to revolve by reluctance torque and magnet torque. An outer diameter ratio ? of an outer diameter Dr of the rotor to an outer diameter Ds of the stator falls in a range from 0.61 to 0.645.Type: GrantFiled: October 18, 2012Date of Patent: June 16, 2015Assignee: SUZUKI MOTOR CORPORATIONInventor: Masahiro Aoyama
-
Patent number: 9013082Abstract: A rotating machine is provided, including a rotor and a stator set. The rotor rotates around an axis, wherein the rotor includes a first permanent magnet set and a second permanent magnet set, the first permanent magnet set is magnetized in a circumference direction of the axis, and the second permanent magnet set is magnetized in an axial direction of the axis. The stator set corresponds to the rotor, wherein the stator set includes a radial stator member and an axial stator member, the axial stator member corresponds to the rotor in the axial direction of the axis, and the radial stator member corresponds to the rotor in a radial direction of the axis.Type: GrantFiled: September 20, 2011Date of Patent: April 21, 2015Assignee: Delta Electronics, Inc.Inventors: Xiao Ge, Jian-Ping Ying, Hong-Cheng Sheu, Hongliu Zhu
-
Patent number: 9000640Abstract: An electric motor configured to maximize active motive material within a given motor size by having one or more phase lead exit holes configured to prevent unwanted outside contaminants from entering the motor, phase leads each having an integral strain relief, and two or more Wye terminations that are not electrically connected to each other.Type: GrantFiled: October 2, 2012Date of Patent: April 7, 2015Assignee: Zero Motorcycles, Inc.Inventors: Ryan John Biffard, Micah Benjamin Bayless
-
Patent number: 8981611Abstract: A rotor includes magnetic pole portions and first and second ferric core portions. The first and second ferric core portions are each located between magnetic pole portions in the circumferential direction of a rotor. A first gap is formed between the first or second ferric core portion and a magnetic pole portion at a first circumferential side. A second gap is formed between the first or second ferric core portion and the magnetic pole portion at a second circumferential side. The first gap has a smaller width than the second gap at the first ferric core portion. The first ferric core portion is inclined toward the first circumferential side. The first gap is larger than the second gap at the second ferric core portion. The second ferric core portion is inclined toward the second circumferential side.Type: GrantFiled: October 24, 2012Date of Patent: March 17, 2015Assignee: ASMO Co., Ltd.Inventors: Kenta Goto, Hideaki Nishiura, Shigemasa Kato, Yoshiyuki Takabe, Masashi Matsuda, Toshihiro Uchida
-
Patent number: 8686748Abstract: An apparatus for providing modulation mapping is disclosed. The apparatus includes a laser source, a motion mechanism providing relative motion between the laser beam and the DUT, signal collection mechanism, which include a photodetector and appropriate electronics for collecting modulated laser light reflected from the DUT, and a display mechanism for displaying a spatial modulation map which consists of the collected modulated laser light over a selected time period and a selected area of the IC.Type: GrantFiled: April 27, 2011Date of Patent: April 1, 2014Assignee: DCG Systems, Inc.Inventor: Steven Kasapi
-
Patent number: 8680856Abstract: An arrangement for potential-free measurement of current flowing in two primary conductors arranged in parallel in opposite directions of each other. The magnetic differential field is detected by a differential field sensor. The primary conductors and the differential field sensor are disposed between two metal shield plates made of a highly permeable material. Each shield plate has a web and the webs extend on both sides of the arrangement of the primary conductors in parallel to the arrangement. At least one shield plate has a U-shape in cross-sectional planes having one pair of limbs that extend at a right angle in a longitudinal direction to the U-shaped cross-sectional planes. At least one limb of one shield plate is aligned toward the other shield plates on one of the limbs while leaving an air gap.Type: GrantFiled: December 18, 2008Date of Patent: March 25, 2014Assignee: Sensitec GmbHInventor: Jochen Schmitt
-
Patent number: 8659305Abstract: In a sensor control circuit, an impedance signal output unit has a HPF, a P/H circuit, a LPF, etc., and detects an element impedance of a sensor element on the basis of an impedance response signal which is alternately changed in response to an alternating current signal supplied to the sensor element. The P/H circuit has an input comparator which inputs an impedance detection voltage Vz after the HPF, a rectifying element connected to the P/H circuit, and a hold capacitor which is charged by the output of the input comparator. The input comparator has a constant current circuit and a transistor. The constant current circuit limits an updating value of a hold voltage value Vph of the hold capacitor every alternating current period. The sensor control device detects the element impedance of the sensor element with high accuracy while preventing influence of noise.Type: GrantFiled: May 16, 2011Date of Patent: February 25, 2014Assignee: Denso CorporationInventor: Toshiyuki Suzuki