Patents by Inventor Masaya Inoue
Masaya Inoue 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).
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Patent number: 8970077Abstract: A rotary electric machine includes a rotor, a stator having coils wound to surround the rotor, a cylindrical ring member fixedly mounted on the stator by shrinkage fitting, and a frame disposed on the outside of the ring member with a gap created in between. The distance of the gap varies as a result of thermal expansion of the stator and the ring member. An outer surface of the ring member goes into contact with the frame when the stator and the ring member thermally expand, whereby the stator and the ring member are efficiently cooled.Type: GrantFiled: April 20, 2012Date of Patent: March 3, 2015Assignee: Mitsubishi Electric CorporationInventors: Tadashi Murakami, Kouichi Ojima, Masaya Inoue
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Publication number: 20150028715Abstract: A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core.Type: ApplicationFiled: June 21, 2012Publication date: January 29, 2015Applicant: Mitsubishi Electric CorporationInventors: Hironori TSUIKI, Shinichiro YOSHIDA, Yutaro SHIRAI, Hiroyuki AKITA, Masaya INOUE, Daisuke SHIJO, Shogo OKAMOTO
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Publication number: 20140354204Abstract: A control device for a permanent magnet motor, including: a rotor position detector configured to detect a rotating speed of a rotor of a permanent magnet motor in a state in which the permanent magnet motor is disconnected from a load by a clutch and rotates without power supply; a magnet temperature estimator configured to estimate a magnet temperature of the permanent magnet motor based on the detected rotating speed; a current compensator configured to determine a compensation amount for compensating for a current command to the permanent magnet motor based on the estimated magnet temperature; and a drive control device configured to control a power converter for driving the permanent magnet motor based on the compensation amount.Type: ApplicationFiled: January 18, 2013Publication date: December 4, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomoya Tachibana, Takeshi Mori, Mitsuharu Hashiba, Masaya Inoue, Moriyuki Hazeyama
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Publication number: 20140346913Abstract: A rotor includes: a plurality of first magnetic pole members that are disposed such that first end portions and second end portions are respectively coupled magnetically and mechanically to a first magnetic end plate and to a second magnetic end plate and so as to be separated from a magnetic intermediate plate magnetically; a plurality of second magnetic pole members that are disposed such that intermediate portions are coupled magnetically and mechanically to the magnetic intermediate plate and so as to be separated from each of the magnetic end plates magnetically; a plurality of permanent magnets that are disposed between the first and second magnetic pole members in a circumferential direction; and a nonmagnetic holding body for separating the first magnetic pole members magnetically from the magnetic intermediate plate, and for separating the second magnetic pole members magnetically from the magnetic end plates.Type: ApplicationFiled: January 22, 2013Publication date: November 27, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masao Morita, Masaya Inoue, Yoichi Kuroda, Moriyuki Hazeyama, Kanji Shinkawa
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Patent number: 8866353Abstract: A first inverter ventilation aperture is disposed so as to pass through a portion of a fin base that faces a bearing, a first rotor ventilation aperture is disposed so as to pass through a portion of a bottom surface portion that faces the bearing, and a first cooling airflow ventilation channel is formed in which a cooling airflow flows radially inward through radiating fins, then flows toward a first surface side of a mount portion through the first inverter ventilation aperture, flows axially through an interior portion of a stator core, and then flows out between the bottom surface portion and a base portion through the first rotor ventilation aperture, and subsequently flows radially outward between the bottom surface portion and the base portion due to rotational driving of a centrifugal fan.Type: GrantFiled: January 20, 2011Date of Patent: October 21, 2014Assignee: Mitsubishi Electric CorporationInventors: Yoshihiro Miyama, Moriyuki Hazeyama, Masaya Inoue, Yoshiko Obiraki, Tatsuya Kitamura
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Patent number: 8749105Abstract: A high-efficiency magnetic inductor rotary machine in which eddy current loss is reduced even if driven at super-high-speed rotation, and a fluid transfer apparatus that uses the same. In the magnetic inductor rotary machines, first and second stator cores are disposed coaxially such that circumferential positions of teeth are aligned, and first and second rotor cores are fixed coaxially to a rotating shaft such that salient poles are offset by a pitch of half a salient pole circumferentially, and are disposed on an inner peripheral side of the first and second stator cores. A salient pole width of the salient poles of the first and second rotor cores is configured so as to be greater than an opening width of slots of a stator.Type: GrantFiled: April 22, 2009Date of Patent: June 10, 2014Assignee: Mitsubishi Electric CorporationInventors: Hideaki Arita, Masaya Inoue, Masahiro Iezawa, Toshihiko Miyake
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Patent number: 8736119Abstract: A center frame is fastened to a first bracket and a second bracket such that a first mated protrusion and a second mated protrusion are fitted together with a first mated recess portion and a second mated recess portion so as to be mated. O rings are disposed annularly so as to be held between an end surface of the first bracket and a first axial end surface of the center frame, and between an end surface of the second bracket and a second axial end surface of the center frame on an opposite side from outer circumferential inner wall surfaces of the first mated recess portion and the second mated recess portion.Type: GrantFiled: September 28, 2011Date of Patent: May 27, 2014Assignee: Mitsubishi Electric CorporationInventors: Kazuyuki Iwamoto, Masaya Inoue, Shinji Nishimura
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Publication number: 20140091663Abstract: Magnet insertion holes for embedding a plurality of permanent magnets per pole are formed in a rotor core in a protruding shape toward a center of a rotor. A pair of flux control holes formed in a symmetrical shape with respect to a center line between magnetic poles is provided for each magnetic pole in a magnetic pole gap of the rotor core. Where d is a diameter of the respective flux control holes, m is a center-to-center distance thereof, b is a width of the magnetic pole gap, and ? is a pole pitch between magnetic poles, the flux control holes are provided so that a value of m/T obtained by standardizing the center-to-center distance m by the pole pitch ? satisfies 0.08<m/?<(b?2 d)/?.Type: ApplicationFiled: May 16, 2011Publication date: April 3, 2014Applicant: Mitsubishi Electric CorporationInventors: Moriyuki Hazeyama, Kenta Kaneko, Masaya Inoue
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Patent number: 8661651Abstract: The rotary electric machine includes a rotor, and a stator including an stator core that is formed by laminating and integrating magnetic steel plates, and concentrated winding coils that are mounted to respective teeth, the stator being disposed so as to surround the rotor. Bobbins each including a trunk portion and first and second guide portions that are disposed so as to protrude from two longitudinal ends of an upper surface of the trunk portion are disposed so as to place bottom surfaces of the trunk portions alongside two axial end surfaces of the teeth. The concentrated winding coils are configured by winding a conductor wire a predetermined number of times around the teeth so as to pass through a concave space that is formed by the trunk portions and the first and second guide portions at two axial ends of the teeth.Type: GrantFiled: February 16, 2012Date of Patent: March 4, 2014Assignee: Mitsubishi Electric CorporationInventors: Hironori Tsuiki, Yukinobu Karata, Shinichiro Yoshida, Hiroyuki Akita, Masaya Inoue
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Patent number: 8648514Abstract: In a rotary electric motor a first stator core and a second stator core are disposed coaxially so as to be separated by a predetermined distance axially and such that circumferential positions of teeth are aligned, and a first rotor core and a second rotor core on which salient poles are disposed at a uniform angular pitch circumferentially are fixed coaxially to a rotating shaft so as to be positioned on inner peripheral sides of the first stator core and the second stator core, respectively, and so as to be offset circumferentially by a pitch of half a salient pole from each other. A first permanent magnet that is magnetically oriented such that a direction of magnetization is radially inward is disposed on an outer peripheral surface of a core back of the first stator core, and an outer peripheral surface of the first permanent magnet and the outer peripheral surface of the core back of the second stator core are linked by a frame that is made of a magnetic material.Type: GrantFiled: April 28, 2009Date of Patent: February 11, 2014Assignee: Mitsubishi Electric CorporationInventors: Hideaki Arita, Masaya Inoue, Masahiro Iezawa, Hayato Yoshino, Kazuhiko Baba, Hitoshi Kawaguchi, Toshihiko Miyake
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Publication number: 20140024897Abstract: Operability in inserting an insertion part of an endoscope into a body cavity using an insertion assisting tool is improved. In an insertion assisting tool, a sidewall portion of a tube main body through which an insertion part of an endoscope is passed is provided with a sidewall opening part having a size in which the insertion part can pass through. A distal end side of the sidewall opening part is provided with a guiding valve, and the insertion part is guided by the guiding valve to be easily fed from the sidewall opening part. The guiding valve is swingably supported, and when the insertion part is fed from a distal end opening part of the tube main body, allowing the parallel state of being substantially parallel to an axial direction of the insertion part and passing the insertion part to a distal end opening part side are enabled.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: FUJIFILM CorporationInventors: Masaya INOUE, Masayuki IWASAKA
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Patent number: 8610328Abstract: The concentrated winding coil is mounted onto a tooth such that a coil end portion is housed inside a concave space that is formed by the trunk portion and first and second guide portions at two axial ends of the tooth. Third cover portions of an insulating sheet that is disposed on two circumferential sides of the tooth are folded over so as to overlap with each other and extend so as to cover the coil end portion of the concentrated winding coil, and a second leader line that projects outward from a radially inner end portion of the concentrated winding coil is bent and led radially outward parallel to the coil end portion that is covered by the third cover portions.Type: GrantFiled: September 27, 2011Date of Patent: December 17, 2013Assignee: Mitsubishi Electric CorporationInventors: Shinichiro Yoshida, Masaya Inoue, Shogo Okamoto
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Patent number: 8593029Abstract: Provided is a Lundell type rotating machine with high efficiency and high output, which has a rigid and magnetically advantageous magnet retention structure. A rotor iron core includes laminated magnetic-pole members mechanically and magnetically coupled to two laminated magnetic end plates, which extend in an axial direction so as to be brought into meshing engagement with each other to constitute a Lundell type rotor iron core, and permanent magnets provided between the magnetic-pole members. The magnetic-pole members are retained in predetermined positions between the magnetic end plates by dovetail grooves of a non-magnetic retention body over substantially the entire lengths. The permanent magnets are held in direct contact with the magnetic-pole members so as to be interposed therebetween. Thus, the magnet retention structure which is mechanically rigid and magnetically highly efficient even when increased in size can be obtained.Type: GrantFiled: September 16, 2010Date of Patent: November 26, 2013Assignee: Mitsubishi Electric CorporationInventors: Masaya Inoue, Yoichi Kuroda, Masao Morita, Moriyuki Hazeyama
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Publication number: 20130307365Abstract: An automotive embedded permanent magnet rotary electric machine can suppress increases in torque ripples and cogging torque, reduce core loss near a stator, and increase magnetic torque and reluctance torque. In the automotive embedded permanent magnet rotary electric machine, a first permanent magnet and a second permanent magnet that constitute a magnetic pole are embedded so as to line up in a main direction of rotation of magnetic poles of a rotor core and are embedded so as to be radially outwardly convex in a region that extends from a leading end portion to a trailing end portion in the main direction of rotation of the magnetic poles, and the first permanent magnet is formed into an integrated body that extends from the leading end portion in the main direction of rotation of the magnetic poles beyond a pole center toward a trailing side.Type: ApplicationFiled: February 2, 2012Publication date: November 21, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kosuke Sekiya, Moriyuki Hazeyama, Takeshi Mori, Hideaki Arita, Haruyuki Kometani, Masaya Inoue
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Patent number: 8546994Abstract: An automotive dynamoelectric machine that achieves disposing of permanent magnets and thickening of field coil wire by ensuring outlet space for field coil lead wires. In the dynamoelectric machine, trough portions are formed on portions of yoke portions between respective circumferentially adjacent claw-shaped magnetic pole portions. Magnet holders are disposed so as to span over all of the trough portions on a pole core body at a rear end excluding a predetermined trough portion, and permanent magnets are held in each of the magnet holders. A field coil lead wire is led out from the rotor so as to pass through the trough portion over which a magnet holder is not disposed.Type: GrantFiled: October 1, 2008Date of Patent: October 1, 2013Assignee: Mitsubishi Electric CorporationInventors: Takeshi Mori, Masaya Inoue, Masao Morita, Hirokazu Akai, Toshiyuki Yoshizawa, Moriyuki Hazeyama, Shinji Nishimura, Kazunori Tanaka
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Publication number: 20130154410Abstract: In this hybrid automobile, a stationary field rotary electric machine is disposed between an engine unit and a transmission unit such that a rotor is linked directly to a crankshaft of the engine unit. A static yoke portion is disposed inside the rotor from a side near the transmission unit such that a field winding is positioned radially inside first and second claw-shaped magnetic pole portions, and a static yoke portion mounting pedestal holds an end portion of a large diameter portion of the static yoke portion near the transmission unit. A radial width of the field winding is narrower than a radial width of a small diameter portion of the static yoke portion onto which the field winding is mounted.Type: ApplicationFiled: August 29, 2011Publication date: June 20, 2013Applicant: Mitsubishi Electric CorporationInventors: Masao Morita, Masaya Inoue, Yoichi Kuroda
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Patent number: 8437910Abstract: A first DC/DC converter is connected to a higher-voltage output terminal of a rectifier by alternator wiring, a battery that supplies electric power to an on-board load is connected to the first DC/DC converter, a second DC/DC converter is connected to the higher-voltage output terminal of the rectifier by alternator wiring, and an electrical double-layer capacitor is connected to the second DC/DC converter.Type: GrantFiled: October 13, 2010Date of Patent: May 7, 2013Assignee: Mitsubishi Electric CorporationInventors: Toshiyuki Yoshizawa, Masaya Inoue, Takahiro Urakabe, Tatsuya Okuda, Yuuya Tanaka, Takayoshi Nagai, Shigeki Harada
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Publication number: 20130093273Abstract: A rotary electric machine includes a rotor, a stator having coils wound to surround the rotor, a cylindrical ring member fixedly mounted on the stator by shrinkage fitting, and a frame disposed on the outside of the ring member with a gap created in between. The distance of the gap varies as a result of thermal expansion of the stator and the ring member. An outer surface of the ring member goes into contact with the frame when the stator and the ring member thermally expand, whereby the stator and the ring member are efficiently cooled.Type: ApplicationFiled: April 20, 2012Publication date: April 18, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tadashi MURAKAMI, Kouichi OJIMA, Masaya INOUE
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Patent number: 8415930Abstract: Provided is a power supply device including: a magneto generator (1), which includes: a rotor including a magnet forming a magnetic field; and a stator which generates an alternating current in stator windings by rotation of the rotor; a rectifying unit (3) which rectifies the alternating current generated by the magneto generator to a direct current; a variable transformation-ratio direct current voltage transformer (40) which transforms an output voltage of the direct current of the rectifying unit to a voltage between input terminals of an electrical load (2) to which electric power is supplied; and a voltage control unit (5) which controls a transformation ratio of the variable transformation-ratio direct current voltage transformer in accordance with at least one of an operating state signal regarding the rotation of the rotor of the magneto generator and an electrical load state signal of the electrical load.Type: GrantFiled: May 3, 2010Date of Patent: April 9, 2013Assignee: Mitsubishi Electric CorporationInventors: Nobuhiro Kihara, Masayoshi Maeda, Shinji Kawaguchi, Hiroshi Okuda, Fumito Uemura, Takahiro Urakabe, Masaya Inoue, Naoki Itoi, Kenji Ishi
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Publication number: 20130069468Abstract: A permanent magnet rotor includes: a rotor core of a laminated structure about a rotation shaft; a plurality of permanent magnet embedment slots provided to the rotor core at equally spaced positions from the rotation shaft; and permanent magnets inserted into the respective permanent magnet embedment slots. The permanent magnet embedment slots each have a magnet storing portion and a buffer and other members storing portion continuing to the magnet storing portion. One permanent magnet is stored in the magnet storing portion and a buffer member and a pushing member used to fix the permanent magnet are stored in the buffer and other members storing portion. It thus becomes possible to provide a permanent magnet rotor capable of not only preventing damage on a permanent magnet by reducing resonance even when the magnet resonates under a vibration condition, but also enhancing mass-productivity.Type: ApplicationFiled: March 19, 2012Publication date: March 21, 2013Applicant: Mitsubishi Electric CorporationInventors: Masashi Nakamura, Hirohisa Yokota, Shogo Okamoto, Masaya Inoue