Patents by Inventor Ryoso Masaki
Ryoso Masaki 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: 10261511Abstract: A mobile apparatus includes a position detection device, and an autonomous mobile body. The position detection device includes input means for inputting route data, a distance sensor, map data, position identification means, and relative route calculation means for calculating a relative position and a relative angle to a position of the target point from the position data and the route data of the mobile body. The autonomous mobile body includes a controller that controls an autonomous travel of the autonomous mobile body itself by using the relative position and the relative angle received from the position detection device as control signals.Type: GrantFiled: March 4, 2014Date of Patent: April 16, 2019Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Ryoso Masaki, Shuichi Maki, Kazuto Shirane, Takuya Naka, Kohsei Matsumoto
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Patent number: 9804605Abstract: Position identification means (7) for estimating the position of a mobile robot (1) includes a laser distance sensor (6) that measures a distance from the mobile robot (1) to an object, means for recognizing an object from data of the measured distance from the mobile robot (1) to the object and map data, travel area storage means (12) for storing a travel area of the mobile robot (1), specified area storage means (13) for storing a specified area that is separate from the travel area of the mobile robot (1), and object determination means (14) for determining whether an object is present within the travel area of the mobile robot (1) that is stored in the travel area storage means (12).Type: GrantFiled: March 4, 2014Date of Patent: October 31, 2017Assignee: Hitachi Industrial Equipment Systems, Co., Ltd.Inventors: Ryoso Masaki, Shuichi Maki, Takuya Naka, Kazuto Shirane, Kohsei Matsumoto
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Publication number: 20160282873Abstract: Position identification means (7) for estimating the position of a mobile robot (1) includes a laser distance sensor (6) that measures a distance from the mobile robot (1) to an object, means for recognizing an object from data of the measured distance from the mobile robot (1) to the object and map data, travel area storage means (12) for storing a travel area of the mobile robot (1), specified area storage means (13) for storing a specified area that is separate from the travel area of the mobile robot (1), and object determination means (14) for determining whether an object is present within the travel area of the mobile robot (1) that is stored in the travel area storage means (12).Type: ApplicationFiled: March 4, 2014Publication date: September 29, 2016Inventors: Ryoso MASAKI, Shuichi MAKI, Takuya NAKA, Kazuto SHIRANE, Kohsei MATSUMOTO
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Publication number: 20160062357Abstract: A position detection device includes position identification means (5) for identifying a position and an angle of a mobile body, using a distance sensor (3) and a map (2), and relative position calculation means (7) for calculating a relative position and a relative angle of the mobile body relative to a target position and a target angle of the mobile body, that are set by input means (6), and outputs an identification result of the position identification means (5) and a calculation result of the relative position calculation means (7) is configured to be attached to the mobile body (100).Type: ApplicationFiled: March 4, 2014Publication date: March 3, 2016Inventors: Ryoso MASAKI, Shuichi MAKI, Kazuto SHIRANE, Takuya NAKA, Kohsei MATSUMOTO
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Patent number: 8937422Abstract: The magnetic iron core includes an amorphous foil strip wound to form the magnetic iron core. Preferably, the magnetic iron core is filled with resin, the resin being disposed by using a spacer between pluralities of windings of the amorphous foil strip. Preferably, the magnetic iron core is covered with resin integrated with and continuous to the resin disposed between pluralities of windings of the amorphous foil strip.Type: GrantFiled: October 22, 2010Date of Patent: January 20, 2015Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Hitachi Appliances, Inc.Inventors: Yuji Enomoto, Zhuonan Wang, Ryoso Masaki, Hiromitsu Itabashi
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Patent number: 8836192Abstract: In the axial gap rotating electrical machine, the rotor includes a rotor yoke that is formed by wrapping amorphous ribbon wound toroidal core, which is obtained by winding an amorphous magnetic metal ribbon into a toroidal core. Magnets having plural poles are circumferentially disposed on a stator-facing surface of the amorphous ribbon wound toroidal core.Type: GrantFiled: December 28, 2010Date of Patent: September 16, 2014Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Hitachi Metals, Ltd., Hitachi Appliances, Inc.Inventors: Zhuonan Wang, Yuji Enomoto, Ryoso Masaki, Hiromitsu Itabashi, Tomio Yoshikawa
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Patent number: 8786155Abstract: When an axial gap rotating electrical machine is assembled, stator cores are accurately positioned and a manufacturing process therefor is simplified. The axial gap rotating electrical machine comprises: a housing frame body having a first space in the cylindrical central part thereof and multiple second spaces located in the circumferential direction which have the same distances from the center; a shaft rotatably provided in the first space in the housing frame body; a core placed in each of the second spaces in the housing frame body and a coil arranged around the core; a rotor yoke fixed on the shaft, extended in the direction of the circumference thereof, and having multiple magnets arranged in circumferential positions confronting the cores; and a case having a hole for the shaft and housing the housing frame body and the rotor yoke.Type: GrantFiled: August 16, 2011Date of Patent: July 22, 2014Assignees: Hitachi Appliances, Inc., Hitachi Metals, Ltd., Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Zhuonan Wang, Yuji Enomoto, Motoya Ito, Ryoso Masaki, Hiromitsu Itabashi, Baiying Huang
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Patent number: 8680736Abstract: An armature core includes a core portion formed of a lamination of plural non-crystalline metallic foil bands, wherein the armature core is provided with at least two cut surfaces with respect to the lamination layers. Amorphous metal is used as the iron base of the non-crystalline metallic foil bands. The cut surfaces are perpendicular to the lamination layers of the non-crystalline foil bands. Still further, the stator includes a stator core holding member in a disc form, the stator having a plurality of holes or recessions that are substantially in the same shape as a cross-sectional shape of the stator cores and wherein the stator cores are inserted in the holes or recessions of the stator core holding member and held by fixing in vicinities of respective central portions thereof, the central portions being with respect to the axial direction thereof.Type: GrantFiled: November 10, 2009Date of Patent: March 25, 2014Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Zhuonan Wang, Yuji Enomoto, Shigeki Morinaga, Ryoso Masaki, Shigeho Tanigawa, Hiromitsu Itabashi, Motoya Ito
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Publication number: 20130328429Abstract: Provided are: a low cost, high-performance motor unit which has a large capacity obtained without increasing the radial size of the axial gap motor and which can be assembled with improved efficiency; and a dynamo-electric machine and a dynamo-electric machine device which use the motor unit. A motor unit comprises: an in-unit shaft; a stator provided along the circumferential direction of the in-unit shaft; two rotors rotating together with the in-unit shaft and provided so as to face both surfaces of the stator in the circumferential direction; and engagement sections provided to the surface of each of the rotors which is on the side opposite the stator. Such motor units are engaged with each other at the engagement sections and rotate integrally.Type: ApplicationFiled: December 20, 2011Publication date: December 12, 2013Applicant: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Yuji Enomoto, Zhuonan Wang, Ryoso Masaki
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Patent number: 8373326Abstract: An axial gap motor includes a stator having stator teeth, and also includes a rotor opposed to the stator with a gap in an axial direction of the stator. Each of the stator teeth includes a stator tooth body, a stator tooth end joined to at least one axial-direction end of the stator tooth body, and a stator coil disposed around the stator tooth body. The stator tooth body includes a wound core comprised of a multi-layered amorphous foil strip winding. The stator tooth end is formed by a compact including a powder magnetic core, and the stator tooth end includes a surface opposed to the rotor. A cross-sectional area of the stator tooth end perpendicular to an axis of the amorphous foil strip winding is larger than a cross-sectional area of the stator tooth body perpendicular to the axis of the amorphous foil strip winding.Type: GrantFiled: October 22, 2010Date of Patent: February 12, 2013Assignees: Hitachi Metals, Ltd., Hitachi Appliances, Inc.Inventors: Yuji Enomoto, Zhuonan Wang, Ryoso Masaki, Hiromitsu Itabashi, Kazumasa Ide
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Publication number: 20120049685Abstract: When an axial gap rotating electrical machine is assembled, stator cores are accurately positioned and a manufacturing process therefor is simplified. The axial gap rotating electrical machine is comprised of: a housing frame body having a first space in the cylindrical central part thereof and multiple second spaces located in the circumferential direction which have the same distances from the center; a shaft rotatably provided in the first space in the housing frame body; a core placed in each of the second spaces in the housing frame body and a coil arranged outside of the core; a rotor yoke fixed on the shaft, extended in the direction of the circumference thereof, and having multiple magnets arranged in circumferential positions confront the cores; and a case having a hole for the shaft and housing the housing frame body and the rotor yoke.Type: ApplicationFiled: August 16, 2011Publication date: March 1, 2012Inventors: Zhuonan WANG, Yuji Enomoto, Motoya Ito, Ryoso Masaki, Hiromitsu Itabashi, Baiying Huang
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Publication number: 20110156519Abstract: In the axial gap rotating electrical machine, the rotor includes a rotor yoke that is formed by wrapping amorphous ribbon wound toroidal core, which is obtained by winding an amorphous magnetic metal ribbon into a toroidal core. Magnets having plural poles are circumferentially disposed on a stator-facing surface of the amorphous ribbon wound toroidal core.Type: ApplicationFiled: December 28, 2010Publication date: June 30, 2011Inventors: Zhuonan WANG, Yuji Enomoto, Ryoso Masaki, Hiromitsu Itabashi, Tomio Yoshikawa
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Patent number: 7963741Abstract: The present invention provides a motor which includes a stator including a plurality of one-phase stators composed of a pair of stator cores having claw-type teeth and a coil for generating magnetic flux at the claw-type teeth, and a rotor for generating torque at a rotary shaft, wherein the stator core includes a plurality of split cores having the same shape, and the split cores are formed to have a recessed portion and a projected portion to be fitted in the recessed portion. Thereby, by using a plurality of the split cores having the same shape, one stator core is formed. On this occasion, the shape of the split cores is molded so that the recessed portion and the projected portion of one stator core are disposed at positions at which those are fitted to the projected portion and the recessed portion of the opposing stator core, respectively.Type: GrantFiled: August 14, 2007Date of Patent: June 21, 2011Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Ryoso Masaki, Yuji Enomoto, Motoya Ito, Hisato Amano, Shigeki Morinaga, Katsuyuki Yamazaki, Kazuhide Ebine
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Publication number: 20110095642Abstract: The invention provides a high-quality magnetic iron core by concurrently satisfying requirements for enhancement in strength of a wound iron core, particularly, strength of a wound iron core made up of amorphous foil strips, reduction in manufacturing time, and manufacturing cost. The invention also provides an electromagnetic application product highly efficient and small in size as an application of the magnetic iron core. The magnetic iron core includes an amorphous foil strip being wound to form the magnetic iron core. The magnetic iron core is filled with resin, the resin being disposed in every plural turns of windings of the amorphous foil strip. Preferably, the magnetic iron core is filled with the resin, the resin being disposed by using a spacer in every plural turns of windings of the amorphous foil strip. Preferably, the magnetic iron core is covered with resin which is integrated with and continuous to the resin disposed in every plural turns of windings of the amorphous foil strip.Type: ApplicationFiled: October 22, 2010Publication date: April 28, 2011Inventors: Yuji ENOMOTO, Zhuonan Wang, Ryoso Masaki, Hiromitsu Itabashi
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Publication number: 20110095628Abstract: The present invention provides a low-iron-loss (high-efficiency) and low-cost axial gap motor that includes a high-quality soft magnetic material placed at an appropriate position, reduces torque pulsation, keeps induced voltage in the shape of a sine wave, and increases the degree of freedom in design. The axial gap motor includes a stator having stator teeth; and a rotor being opposed to the stator with a gap in an axial direction of the stator. Each of the stator teeth includes a stator tooth body, a stator tooth end joined to at least one axial-direction end of the stator tooth body, and a stator coil disposed around the stator tooth body. The stator tooth body includes a wound core comprised of a multi-layered amorphous foil strip winding. The stator tooth end is formed by a compact made of a powder magnetic core, and includes an opposed surface to the rotor.Type: ApplicationFiled: October 22, 2010Publication date: April 28, 2011Inventors: Yuji ENOMOTO, Zhuonan Wang, Ryoso Masaki, Hiromitsu Itabashi, Kazumasa Ide
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Patent number: 7906881Abstract: It is desired to design a coreless motor in which a gap size is set to be as small as possible, and a magnet having a large energy product is used in order to increase the gap magnetic flux density since the coreless motor has no iron core so that the magnetic flux density is small in the gap part. A rotor core of the motor has a permanent magnet rotor which is formed by a compression molding means, and which is formed of a compact formed by molding a powder material, the compact comprising a bond magnetic portion mainly composed of a binder and a magnetic powder, and a soft magnetic portion mainly composed of a binder and a soft magnetic powder, the bond magnetic portion having magnetic poles having at least one surface which is mechanically bonded to the soft magnetic portion, in order to solve the inherent problems.Type: GrantFiled: May 9, 2006Date of Patent: March 15, 2011Assignees: Hitachi, Ltd., Hitachi Industrial Equipment Systems Co., Ltd., Hitachi Metals, Ltd.Inventors: Yuji Enomoto, Motoya Ito, Ryoso Masaki, Koichiro Ohara, Masahiro Mita, Matahiro Komuro, Masahiro Masuzawa
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Patent number: 7795774Abstract: A claw pole type motor includes first and second claw poles opposed to each other and each including a radial yoke portion having an inner diameter side and an outer diameter side, a plurality of pole portions arranged on the inner diameter side, and axially extended, and an outer peripheral side yoke portion extending on the outer diameter side. A stator core is provided having an inner diameter side, and is formed so as to cause the pole portions of the first claw pole to be meshed with the pole portions of the second claw pole. A rotor is arranged on the inner diameter side of the stator core with a circumferential gap being defined therebetween. In order to provide high efficiency while simplifying manufacturing, the first and second claw poles are formed by compacting of magnetic powder.Type: GrantFiled: July 20, 2007Date of Patent: September 14, 2010Assignee: Hitachi Industrial Equipment Systems Co.Inventors: Yuji Enomoto, Motoya Ito, Kenji Miyata, Chio Ishihara, Ryoso Masaki, Yasuaki Motegi, Kouki Isozaki, Tadashi Sato
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Patent number: 7791244Abstract: A multiphase claw-pole type electric rotary machine has two or more phases-stator units. The stator units are arranged phase by phase in an axial direction of the electric rotary machine. Each phase stator unit comprises a pair of complementary-opposed claw pole core blocks and a ring-shaped stator coil sandwiched therebetween. The stator units have structures rotatably adjustable independent of each other in their phase positional relations while maintaining concentricity of them after assembly of the rotary machine before being secured.Type: GrantFiled: June 15, 2007Date of Patent: September 7, 2010Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Hitachi Powdered Metals Co., Ltd, Nidec Servo CorporationInventors: Yuji Enomoto, Motoya Ito, Ryoso Masaki, Shoji Ohiwa, Chio Ishihara
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Publication number: 20100148611Abstract: An armature core includes a core portion formed of a lamination of plural noncrystalline metallic foil bands and resin for bond-fixing the non-crystalline metallic foil bands, wherein the armature core is provided with at least two cut surfaces with respect to the lamination layers. Amorphous metal is used as the iron base of the non-crystalline metallic foil bands. The cut surfaces are perpendicular to the lamination-layers of the non-crystalline foil bands. For the amorphous core, a resin mold is formed. The contact portions between winding wires and amorphous are provided with edge roundness. Further, an axial gap motor using cut cores of amorphous lamination as stator cores is provided.Type: ApplicationFiled: November 10, 2009Publication date: June 17, 2010Inventors: Zhuonan Wang, Yuji ENOMOTO, Shigeki MORINAGA, Ryoso MASAKI, Shigeho TANIGAWA, Hiromitsu ITABASHI, Motoya ITO
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Publication number: 20100147165Abstract: In an industrial machine using a flywheel, in order to prevent increase in size of a driving motor, etc. and very freely control velocity of a load, an output shaft of a reduction gear set is connected to a load driving shaft, an input-shaft-sided gear of the reduction gear set is driven by a first motor, a differential mechanism is connected to the flywheel, the differential mechanism is configured such that the output shaft of the reduction gear set is connected to a carrier, rotational force inputted from the sun gear is transmitted to the flywheel and stored as energy while the stored energy is discharged to the sun gear and the carrier. Further, the sun gear of the differential mechanism is driven by a second motor, energy is stored by accelerating the flywheel using the second motor according to the rotational angle position of the load driving shaft, and then the load driving shaft is driven while compensating insufficient torque of the first motor by discharging the stored energy.Type: ApplicationFiled: December 12, 2008Publication date: June 17, 2010Applicant: Aida Engineering, Ltd.Inventors: Ryoso MASAKI, Shigeki MORINAGA, Hiroshi NAGASE