Patents by Inventor Yutaka Tasaki
Yutaka Tasaki 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: 9810454Abstract: A magnetic structure has a magnetocaloric material the temperature of which changes with application or removal of a magnetic field, and a high thermal conduction member which is in contact with the magnetocaloric material and has higher thermal conductivity than the magnetocaloric material. Further, this magnetic air-conditioning and heating device is provided with multiple of the aforementioned magnetic structures, a thermal switch which is arranged between magnetic structures and transmits or insulates heat, and a magnetic field varying unit which applies or removes a magnetic field to each of the magnetic structures. By providing in the magnetic structures a high thermal conduction member with higher thermal conductivity than the magnetocaloric material, some or all of the heat generated in the magnetocaloric material can be quickly conducted in the magnetic bodies.Type: GrantFiled: September 7, 2012Date of Patent: November 7, 2017Assignee: Nissan Motor Co., Ltd.Inventors: Yutaka Tasaki, Hidekazu Takahashi
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Patent number: 9599374Abstract: A magnetic air conditioner includes heat generation disks of a hollow shape each having a magneto-caloric material and a thermal switch, and magnetic field application disks of a hollow shape each having a magnetic field application unit that applies a magnetic field to the magneto-caloric material, the heat generation disks and the magnetic field application disks being alternately stacked. At least either of the heat generation disks and the magnetic field application disks is made to relatively rotate so as to transport heat in a direction intersecting the rotating direction. The magnetic air conditioner also includes an outer-rotor motor that causes at least one of the heat generation disks and the magnetic field application disks to rotate, and a clutch that transmits a driving force collectively to the plurality of heat generation disks or to the plurality of magnetic field application disks, or separately.Type: GrantFiled: March 4, 2013Date of Patent: March 21, 2017Assignee: Nissan Motor Co., Ltd.Inventors: Hidekazu Takahashi, Yutaka Tasaki, Yoshiteru Yasuda
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Patent number: 9400126Abstract: [Problem to be solved] To reduce the fluctuation in the driving force. [Means to solve Problem] A magnetic cooling/heating apparatus comprising: a heat transfer unit 1000A comprising a plurality of heat transfer devices 50-1, 50-2, . . . arranged in parallel at intervals, wherein the heat transfer device 50-1 comprises magnetic bodies 10A-10F with a magneto-caloric effect and heat-conductive parts 30A-30G that transfer the heat of the magnetic bodies 10A-10F, both of which are alternately arranged; a magnetic unit 2000A comprising a plurality of magnets 21A, 21C, . . . that are arranged so as to face against each of the magnetic bodies 10A-10F of the heat transfer unit 1000A and to selectively apply and remove the magnetic field to/from each of the magnetic bodies 10A-10F; and a motor 350 that moves at least one of the heat transfer unit 1000A and the magnetic unit 2000A facing each other, relative to each other in the direction in which the heat transfer devices 50-1, 50-2, . . .Type: GrantFiled: November 13, 2012Date of Patent: July 26, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Hidekazu Takahashi, Yutaka Tasaki
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Patent number: 9273886Abstract: A magnetic body is provided to improve heat transport capability and heat transport efficiency. A magnetic body arranged plate has magnetic body units each including magnetic members. Low-temperature side and high-temperature side heat exchange units are disposed at ends of each magnetic body unit. Permanent magnets and heat conductive members are arranged on a magnet/heat conductive member arranged plate. When the magnetic body arranged plate and the magnet/heat conductive member arranged plate are moved relative to each other, the permanent magnets apply magnetism separately to the magnetic members of each magnetic body unit. The magnet/heat conductive member arranged plate creates a temperature difference and conducts heat in one direction between the magnetic members, the low-temperature side heat exchange unit, and the high-temperature side heat exchange unit.Type: GrantFiled: April 23, 2012Date of Patent: March 1, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Hidekazu Takahashi, Yutaka Tasaki
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Patent number: 9239176Abstract: A magnetic heating and cooling device is provided that comprises a heat exchanger that includes a magnetic body having a magnetocaloric effect; a magnetic field applying and removing unit that selectively applies to or removes from the magnetic body a magnetic field; and a liquid refrigerant moving unit that reciprocates a liquid refrigerant from one end to the other end, or from the other end to the one end, of the heat exchanger to exchange heat with the magnetic body inside the heat exchanger. The magnetic body is constituted by a plurality of flat magnetic members. At least one flat magnetic member has at least one slit that opens in the direction perpendicular to the movement direction of the liquid refrigerant, and the open end of each slit forms a corner to increase heat exchange efficiency.Type: GrantFiled: May 17, 2012Date of Patent: January 19, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Yutaka Tasaki, Yoshio Utaka
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Publication number: 20150089960Abstract: A magnetic air conditioner includes heat generation disks of a hollow shape each having a magneto-caloric material and a thermal switch, and magnetic field application disks of a hollow shape each having a magnetic field application unit that applies a magnetic field to the magneto-caloric material, the heat generation disks and the magnetic field application disks being alternately stacked. At least either of the heat generation disks and the magnetic field application disks is made to relatively rotate so as to transport heat in a direction intersecting the rotating direction. The magnetic air conditioner also includes an outer-rotor motor that causes at least one of the heat generation disks and the magnetic field application disks to rotate, and a clutch that transmits a driving force collectively to the plurality of heat generation disks or to the plurality of magnetic field application disks, or separately.Type: ApplicationFiled: March 4, 2013Publication date: April 2, 2015Inventors: Hidekazu Takahashi, Yutaka Tasaki, Yoshiteru Yasuda
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Publication number: 20140338365Abstract: A magnetic structure has a magnetocaloric material the temperature of which changes with application or removal of a magnetic field, and a high thermal conduction member which is in contact with the magnetocaloric material and has higher thermal conductivity than the magnetocaloric material. Further, this magnetic air-conditioning and heating device is provided with multiple of the aforementioned magnetic structures, a thermal switch which is arranged between magnetic structures and transmits or insulates heat, and a magnetic field varying unit which applies or removes a magnetic field to each of the magnetic structures. By providing in the magnetic structures a high thermal conduction member with higher thermal conductivity than the magnetocaloric material, some or all of the heat generated in the magnetocaloric material can be quickly conducted in the magnetic bodies.Type: ApplicationFiled: September 7, 2012Publication date: November 20, 2014Applicant: NISSAN MOTOR CO., LTD.Inventors: Yutaka Tasaki, Hidekazu Takahashi
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Publication number: 20140305139Abstract: [Problem to be solved] To reduce the fluctuation in the driving force. [Means to solve Problem] A magnetic cooling/heating apparatus comprising: a heat transfer unit 1000A comprising a plurality of heat transfer devices 50-1, 50-2, . . . arranged in parallel at intervals, wherein the heat transfer device 50-1 comprises magnetic bodies 10A-10F with a magneto-caloric effect and heat-conductive parts 30A-30G that transfer the heat of the magnetic bodies 10A-10F, both of which are alternately arranged; a magnetic unit 2000A comprising a plurality of magnets 21A, 21C, . . . that are arranged so as to face against each of the magnetic bodies 10A-10F of the heat transfer unit 1000A and to selectively apply and remove the magnetic field to/from each of the magnetic bodies 10A-10F; and a motor 350 that moves at least one of the heat transfer unit 1000A and the magnetic unit 2000A facing each other, relative to each other in the direction in which the heat transfer devices 50-1, 50-2, . . .Type: ApplicationFiled: November 13, 2012Publication date: October 16, 2014Inventors: Hidekazu Takahashi, Yutaka Tasaki
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Publication number: 20140109597Abstract: A magnetic heating and cooling device is provided that comprises a heat exchanger that includes a magnetic body having a magnetocaloric effect; a magnetic field applying and removing unit that selectively applies to or removes from the magnetic body a magnetic field; and a liquid refrigerant moving unit that reciprocates a liquid refrigerant from one end to the other end, or from the other end to the one end, of the heat exchanger to exchange heat with the magnetic body inside the heat exchanger. The magnetic body is constituted by a plurality of flat magnetic members. At least one flat magnetic member has at least one slit that opens in the direction perpendicular to the movement direction of the liquid refrigerant, and the open end of each slit forms a corner to increase heat exchange efficiency.Type: ApplicationFiled: May 17, 2012Publication date: April 24, 2014Applicants: National University Corporation Yokohama National University, Nissan Motor Co., Ltd.Inventors: Yutaka Tasaki, Yoshio Utaka
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Publication number: 20140075958Abstract: A magnetic body is provided to improve heat transport capability and heat transport efficiency. A magnetic body arranged plate has magnetic body units each including magnetic members. Low-temperature side and high-temperature side heat exchange units are disposed at ends of each magnetic body unit. Permanent magnets and heat conductive members are arranged on a magnet/heat conductive member arranged plate. When the magnetic body arranged plate and the magnet/heat conductive member arranged plate are moved relative to each other, the permanent magnets apply magnetism separately to the magnetic members of each magnetic body unit. The magnet/heat conductive member arranged plate creates a temperature difference and conducts heat in one direction between the magnetic members, the low-temperature side heat exchange unit, and the high-temperature side heat exchange unit.Type: ApplicationFiled: April 23, 2012Publication date: March 20, 2014Applicant: NISSAN MOTOR CO., LTD.Inventors: Hidekazu Takahashi, Yutaka Tasaki
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Publication number: 20080011462Abstract: In an evaporator 1, space between two heat transfer plates 2 opposite to each other serves as a liquid path 3, and the outsides of the heat transfer plates 2 serve as a gas path 4. At the lower end of the liquid path 3, a liquid inlet, through which liquid to be evaporated is supplied to the evaporator 1, is provided, and at the upper end of the liquid path 3, a vapor outlet is provided. The liquid to be evaporated vaporizes while flowing from bottom to top. The heating gas is supplied form a gas inlet 7, which is provided at the upper end of the evaporator, and discharged from a gas outlet 8, which is provided at the lower end of the evaporator. Size of space S of the liquid path 3 gradually increases from bottom to top in a gas-liquid two phase region 11.Type: ApplicationFiled: April 19, 2005Publication date: January 17, 2008Inventor: Yutaka Tasaki
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Patent number: 6035965Abstract: To provide a sound absorbing structure having a superior sound absorbing characteristic and an external appearance of the sound absorbing structure which does not cause flicker or the like, by disposal, for example, in the front of an air chamber, a plurality of ribs (2a) are disposed on one surface of the sound absorbing board body (2), and a plurality of through-holes (3) are provided in basal portions (2b) between the ribs (2a) to form a porous structure. Concealing materials (5) are provided between the ribs (2a) of the sound absorbing board body to conceal the through-holes (3), respectively.Type: GrantFiled: December 4, 1998Date of Patent: March 14, 2000Assignee: Nitto Boseki Co., Ltd.Inventors: Kyoji Fujiwara, Shinta Yamamura, Naoyuki Furuta, Tadanori Mizukami, Yutaka Tasaki, Takashi Mikami
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Patent number: 5920041Abstract: An outer mounting rail at a side opposite to a sound source side and an inner mounting rail at the sound source side are fixed to a metal securing part secured to an attachment base portion projecting from a top portion of a sound insulation wall. An outer stationary rail fixed to a sound absorbing body is fixed to the outer mounting rail by a joint bar, and an inner stationary rail fixed to the sound absorbing body is fixed to the inner mounting rail.Type: GrantFiled: February 23, 1998Date of Patent: July 6, 1999Assignee: Nitto Boseki Co.Inventors: Naoyuki Furuta, Shinta Yamamura, Tadanori Mizukami, Yutaka Tasaki, Takashi Mikami
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Patent number: 5854453Abstract: To provide a sound absorbing structure having a superior sound absorbing characteristic and an external appearance of the sound absorbing structure which does not cause flicker or the like, by disposal, for example, in the front of an air chamber, a plurality of ribs (2a) are disposed on one surface of the sound absorbing board body (2), and a plurality of through-holes (3) are provided in basal portions (2b) between the ribs (2a) to form a porous structure. Concealing materials (5) are provided between the ribs (2a) of the sound absorbing board body to conceal the through-holes (3), respectively.Type: GrantFiled: April 9, 1997Date of Patent: December 29, 1998Assignee: Nitto Boseki Co., Ltd.Inventors: Kyoji Fujiwara, Shinta Yamamura, Naoyuki Furuta, Tadanori Mizukami, Yutaka Tasaki, Takashi Mikami
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Patent number: 4884400Abstract: Herein disclosed is an improved exhaust manifold for an internal combustion engine, which comprises an outer body of aluminium having a configuration corresponding to the exhaust manifold, and insulating layer of ceramic fiber disposed on the inner surface of the outer body for protecting the outer body from the heated exhaust gas, and a protecter incorporated with the insulating layer in a manner to maintain the disposition and configuration of the insulating layer.Type: GrantFiled: March 11, 1988Date of Patent: December 5, 1989Assignee: Nissan Motor Co., Ltd.Inventors: Yoshimasa Tanaka, Yutaka Tasaki