Patents by Inventor Hisayuki Furuse
Hisayuki Furuse 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: 7608969Abstract: A stator for a rotary electric machine, including a plurality of stator cores arranged in a circumferentially spaced relation about a central axis of the stator, and a molded resin filled between the adjacent stator cores. Each of the stator cores includes a meshing portion which is meshed with the molded resin and formed on circumferentially opposed side surfaces of the stator core. The stator core includes a plurality of stator segments laminated along a direction of the central axis so as to form the meshing portion.Type: GrantFiled: September 20, 2005Date of Patent: October 27, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Kenta Suzuki, Masaki Nakano, Takashi Kato, Hisayuki Furuse, Tomoya Imazu
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Publication number: 20060061229Abstract: A stator for a rotary electric machine, including a plurality of stator cores arranged in a circumferentially spaced relation about a central axis of the stator, and a molded resin filled between the adjacent stator cores. Each of the stator cores includes a meshing portion which is meshed with the molded resin and formed on circumferentially opposed side surfaces of the stator core. The stator core includes a plurality of stator segments laminated along a direction of the central axis so as to form the meshing portion.Type: ApplicationFiled: September 20, 2005Publication date: March 23, 2006Inventors: Kenta Suzuki, Masaki Nakano, Takashi Kato, Hisayuki Furuse, Tomoya Imazu
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Patent number: 6943473Abstract: An electric rotating machine including a casing, two disk-shaped rotors arranged in concentric relation to each other within the casing, and a stator disposed concentrically with the rotors within the casing. The rotors include magnets, respectively. The magnet of one of the rotors and the magnet of the other of the rotors are disposed radially offset from each other. The stator includes a radially outer portion axially opposed to the magnet of one of the rotors and a radially inner portion axially opposed to the magnet of the other of the rotors.Type: GrantFiled: August 19, 2003Date of Patent: September 13, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Hisayuki Furuse, Masaki Nakano
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Patent number: 6927516Abstract: In a two rotor signal stator type electric motor, there is defined a bearing lubricating structure. The bearing lubricating structure comprises an oil flow passage that is defined at a rear end portion of the motor and is supplied with a lubrication oil under operation of the motor. Within the oil flow passage, there are arranged a first bearing that is operatively arranged between a rotation shaft of an outer rotor and a rotation shaft of an inner rotor and a second bearing that is operatively arranged between a rotor rear disc of the outer rotor and a fixed stator rear disc of a stator. A first oil distribution passage is exposed to a radially inner part of the oil flow passage to permit a lubrication oil flow from the oil flow passage toward the stator and inner rotor, and a second oil distribution passage is exposed to a radially outer part of the oil flow passage to permit a lubrication oil flow from the oil flow passage toward the stator and outer rotor.Type: GrantFiled: June 3, 2004Date of Patent: August 9, 2005Assignee: Nissan Motor Co., Ltd.Inventor: Hisayuki Furuse
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Patent number: 6848165Abstract: An electric rotating machine is equipped with a middle core, an outer core disposed outside the middle core which rotates relative to the middle core, and an inner core disposed inside the middle core which rotates relative to the middle core. The middle core comprises plural plates disposed in an axial direction. The plural plates are connected in the axial direction by a connecting member, and joined to a first fixing member. The inner and outer circumferential surfaces are finished in the state where the plates are joined only to the first fixing member, and the opposite side to the first fixing member is joined to a second fixing member after finishing.Type: GrantFiled: July 24, 2003Date of Patent: February 1, 2005Assignee: Nissan Motor Co., Ltd.Inventor: Hisayuki Furuse
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Patent number: 6847137Abstract: A stator support structure is constructed having a divided-coil type stator 5 having a plurality of divided stator cores 5A and a plurality of stator coils wound around the stator cores, respectively. First and second rotors 7 and 9 are located inside and outside the stator 5, respectively, to form a three-layer structure. The stator cores 5A are fixedly supported at both distal ends thereof with front and rear stator support members, respectively, with equally spaced distances. A plurality of elongated positioning projection members 31 are located between the stator cores 5A. Further, provision of the stator support members 19 and 21 made of a material having nonmagnetic and high heat conducting properties allows the stator support members 19 and 21 to discharge heat from the stator 5.Type: GrantFiled: May 30, 2001Date of Patent: January 25, 2005Assignee: Nissan Motor Co., Ltd.Inventor: Hisayuki Furuse
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Publication number: 20040245875Abstract: In a two rotor signal stator type electric motor, there is defined a bearing lubricating structure. The bearing lubricating structure comprises an oil flow passage that is defined at a rear end portion of the motor and is supplied with a lubrication oil under operation of the motor. Within the oil flow passage, there are arranged a first bearing that is operatively arranged between a rotation shaft of an outer rotor and a rotation shaft of an inner rotor and a second bearing that is operatively arranged between a rotor rear disc of the outer rotor and a fixed stator rear disc of a stator. A first oil distribution passage is exposed to a radially inner part of the oil flow passage to permit a lubrication oil flow from the oil flow passage toward the stator and inner rotor, and a second oil distribution passage is exposed to a radially outer part of the oil flow passage to permit a lubrication oil flow from the oil flow passage toward the stator and outer rotor.Type: ApplicationFiled: June 3, 2004Publication date: December 9, 2004Applicant: NISSAN MOTOR CO., LTD.Inventor: Hisayuki Furuse
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Publication number: 20040213269Abstract: A stator support structure is constructed having a divided-coil type stator 5 having a plurality of divided stator cores 5A and a plurality of stator coils wound around the stator cores, respectively. First and second rotors 7 and 9 are located inside and outside the stator 5, respectively, to form a three-layer structure. The stator cores 5A are fixedly supported at both distal ends thereof with front and rear stator support members, respectively, with equally spaced distances. A plurality of elongated positioning projection members 31 are located between the stator cores 5A. Further, provision of the stator support members 19 and 21 made of a material having nonmagnetic and high heat conducting properties allows the stator support members 19 and 21 to discharge heat from the stator 5.Type: ApplicationFiled: May 30, 2001Publication date: October 28, 2004Applicant: NISSAN MOTOR CO., LTD.Inventor: Hisayuki Furuse
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Patent number: 6774527Abstract: A cylindrical stator is installed in a case. First and second discal rotors are installed in the case and arranged at axially opposed end portions of the cylindrical stator to rotate about an axis of the cylindrical stator. A case bracket is installed in the case to support the cylindrical stator. The case bracket is in abutment with an inner surface of the case to be held in the case. With this arrangement, the cylindrical stator is assuredly held and supported in the case.Type: GrantFiled: September 6, 2002Date of Patent: August 10, 2004Assignee: Nissan Motor Co., Ltd.Inventors: Hisayuki Furuse, Masaki Nakano
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Publication number: 20040075358Abstract: An electric rotating machine including a casing, two disk-shaped rotors arranged in concentric relation to each other within the casing, and a stator disposed concentrically with the rotors within the casing. The rotors include magnets, respectively. The magnet of one of the rotors and the magnet of the other of the rotors are disposed radially offset from each other. The stator includes a radially outer portion axially opposed to the magnet of one of the rotors and a radially inner portion axially opposed to the magnet of the other of the rotors.Type: ApplicationFiled: August 19, 2003Publication date: April 22, 2004Inventors: Hisayuki Furuse, Masaki Nakano
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Patent number: 6624545Abstract: An electric rotating machine is equipped with a middle core, an outer core disposed outside the middle core which rotates relative to the middle core, and an inner core disposed inside the middle core which rotates relative to the middle core. The middle core comprises plural plates disposed in an axial direction. The plural plates are connected in the axial direction by a connecting member, and joined to a first fixing member. The inner and outer circumferential surfaces are finished in the state where the plates are joined only to the first fixing member, and the opposite side to the first fixing member is joined to a second fixing member after finishing.Type: GrantFiled: October 3, 2000Date of Patent: September 23, 2003Assignee: Nissan Motor Co., Ltd.Inventor: Hisayuki Furuse
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Publication number: 20030048034Abstract: A cylindrical stator is installed in a case. First and second discal rotors are installed in the case and arranged at axially opposed end portions of the cylindrical stator to rotate about an axis of the cylindrical stator. A case bracket is installed in the case to support the cylindrical stator. The case bracket is in abutment with an inner surface of the case to be held in the case. With this arrangement, the cylindrical stator is assuredly held and supported in the case.Type: ApplicationFiled: September 6, 2002Publication date: March 13, 2003Applicant: NISSAN MOTOR CO., LTD.Inventors: Hisayuki Furuse, Masaki Nakano
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Patent number: 6472845Abstract: An inverter (23) generates a composite current comprising an electrical current for a first rotor (4) and an electrical current for a second rotor (3). A microprocessor (22) controls the inverter (23) so that the average value of the composite current is smaller than the sum of the average values of the respective currents.Type: GrantFiled: July 9, 2001Date of Patent: October 29, 2002Assignee: Nissan Motor Co., Ltd.Inventors: Yuusuke Minagawa, Hisayuki Furuse, Minoru Arimitsu, Shoichi Maeda, Masaki Nakano
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Publication number: 20020033689Abstract: An inverter (23) generates a composite current comprising an electrical current for a first rotor (4) and an electrical current for a second rotor (3). A microprocessor (22) controls the inverter (23) so that the average value of the composite current is smaller than the sum of the average values of the respective currents.Type: ApplicationFiled: July 9, 2001Publication date: March 21, 2002Applicant: NISSAN MOTOR CO., LTD.Inventors: Yuusuke Minagawa, Hisayuki Furuse, Minoru Arimitsu, Shoichi Maeda, Masaki Nakano