Masashi Matsuda
Masashi Matsuda, Kakegawa-City JP
Patent application number | Description | Published |
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20100066188 | Brushless motor - Teeth of a stator core are arranged one after another in the circumferential direction at alternating first and second pitches. Each corresponding adjacent two of the teeth, which are spaced from each other by the first pitch, are wound with corresponding two, respectively, of stator coils, which form a corresponding common phase. Each corresponding adjacent two of the teeth, which are spaced from each other by the second pitch, are wound with corresponding two, respectively, of the stator coils, which form corresponding different phases, respectively. | 03-18-2010 |
20130026877 | MOTOR - A motor has a plurality of permanent magnet pieces aligned is such a manner as to surround an armature core and a magnetic-flux guide ring disposed between the permanent magnet pieces and the armature core for introducing a magnetic flux from the permanent magnet pieces to the armature core. The magnetic-flux guide ring has a confronting portion confronting each of the magnet pieces, an aperture formed in the confronting portion, and a connecting portion connecting adjacent two confronting portions. The aperture is formed in such a manner as to confront a boundary of adjacent magnet pieces. | 01-31-2013 |
Masashi Matsuda, Chiba JP
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20090030122 | ANTISTATIC THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE COMPOSED THEREOF - An antistatic thermoplastic resin composition includes 0.01 to 20 parts by weight of an organic ion conductive agent mixed with 100 parts by weight of a thermoplastic resin composition consisting of 97 to 55 parts by weight of a styrene-based resin and 3 to 45 parts by weight of a copolymer containing alkylene oxide units as a component, and a molded article composed thereof. The antistatic thermoplastic resin composition is low in surface resistivity value, stable in sustained antistatic properly and excellent in moldability, surface appearance and mechanical properties, and can be suitably used as molded articles such as electric and electronic parts, carrier parts for electric and electronic parts, carrier parts for display related parts, etc. | 01-29-2009 |
Masashi Matsuda, Kosai-City JP
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20080296985 | Brushless motor - In a brushless motor, a stator includes an annular core member. A rotatable shaft is placed radially inward of the core member and extends in an axial direction. A rotor is supported by the rotatable shaft. A centerpiece supports the core member and includes a center portion, which is placed radially inward of the core member. A platy vibration absorbing member connects between the core member and the center portion of the centerpiece and damps circumferential vibrations transmitted from the core member. | 12-04-2008 |
Masashi Matsuda, Ichihara-Shi JP
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20130221293 | FLAME-RETARDANT STYRENE THERMOPLASTIC RESIN COMPOSITION AND MOLDED PRODUCT THEREOF - A flame-retardant styrene thermoplastic resin composition including 6 to 15 parts by weight of a phosphoric acid ester flame retardant (II) and 0.1 to 3 parts by weight of an aromatic carbonate oligomer (III) having a viscosity average molecular weight [Mv] of 1,000 to 10,000 with respect to 100 parts by weight of a styrene resin (I), and molded products thereof have excellent flame retardancy, mechanical properties and moldability. | 08-29-2013 |
Masashi Matsuda, Kakegawa-Shi JP
Patent application number | Description | Published |
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20130106229 | ROTOR AND MOTOR | 05-02-2013 |
20140203677 | ROTOR, STATOR AND MOTOR - A rotor with four axially stacked rotor cores, and a plurality of field magnets interposed between them. Each rotor core includes a rotor-side claw-shaped magnetic pole. Each rotor-side claw-shaped magnetic poles are respectively extending from and formed on each rotor core at equal angle intervals. Tip end surfaces of the first and third rotor-side claw-shaped magnetic pole abut against or are closely opposed to each other axially. Tip end surfaces of the second and fourth rotor-side claw-shaped magnetic poles abut against or are closely opposed to each other in the axial direction. The plurality of field magnets are magnetized in the axial direction such that the field magnets causes the first and third rotor-side claw-shaped magnetic poles to function as first magnetic poles, and cause the second and fourth rotor-side claw-shaped magnetic poles to function as second magnetic poles. | 07-24-2014 |
20150084470 | MOTOR AND ROTOR - A motor includes a rotor and a stator. The rotor includes a first rotor core including a plurality of first claw-like magnetic poles, a second rotor core including a plurality of second claw-like magnetic poles, and a magnetic field magnet arranged between the first and second rotor cores. The first and second claw-like magnetic poles are alternately arranged in a circumferential direction. The magnetic field magnet causes the first and second claw-like magnetic poles to function as magnetic poles different from each other. The stator includes a first stator core including a plurality of first claw-like magnetic poles, a second stator core including a plurality of second claw-like magnetic poles, and a coil section arranged between the first and second stator cores. The stator is configured to cause the first and second claw-like magnetic poles of the stator to function as magnetic poles different from each other and switch polarities of the magnetic poles on the basis of energization to the coil section. At least ones of the claw-like magnetic poles of the rotor and the claw-like magnetic poles of the stator are formed in a shape in which circumferential centers of distal end portions are shifted in the circumferential direction with respect to circumferential centers of proximal end portions. | 03-26-2015 |