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).

  • Patent number: 9810454
    Abstract: 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: Grant
    Filed: September 7, 2012
    Date of Patent: November 7, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yutaka Tasaki, Hidekazu Takahashi
  • Patent number: 9599374
    Abstract: 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: Grant
    Filed: March 4, 2013
    Date of Patent: March 21, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hidekazu Takahashi, Yutaka Tasaki, Yoshiteru Yasuda
  • Patent number: 9400126
    Abstract: [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: Grant
    Filed: November 13, 2012
    Date of Patent: July 26, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Hidekazu Takahashi, Yutaka Tasaki
  • Patent number: 9273886
    Abstract: 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: Grant
    Filed: April 23, 2012
    Date of Patent: March 1, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Hidekazu Takahashi, Yutaka Tasaki
  • Patent number: 9239176
    Abstract: 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: Grant
    Filed: May 17, 2012
    Date of Patent: January 19, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yutaka Tasaki, Yoshio Utaka
  • Publication number: 20150089960
    Abstract: 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: Application
    Filed: March 4, 2013
    Publication date: April 2, 2015
    Inventors: Hidekazu Takahashi, Yutaka Tasaki, Yoshiteru Yasuda
  • Publication number: 20140338365
    Abstract: 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: Application
    Filed: September 7, 2012
    Publication date: November 20, 2014
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yutaka Tasaki, Hidekazu Takahashi
  • Publication number: 20140305139
    Abstract: [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: Application
    Filed: November 13, 2012
    Publication date: October 16, 2014
    Inventors: Hidekazu Takahashi, Yutaka Tasaki
  • Publication number: 20140109597
    Abstract: 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: Application
    Filed: May 17, 2012
    Publication date: April 24, 2014
    Applicants: National University Corporation Yokohama National University, Nissan Motor Co., Ltd.
    Inventors: Yutaka Tasaki, Yoshio Utaka
  • Publication number: 20140075958
    Abstract: 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: Application
    Filed: April 23, 2012
    Publication date: March 20, 2014
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Hidekazu Takahashi, Yutaka Tasaki
  • Publication number: 20080011462
    Abstract: 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: Application
    Filed: April 19, 2005
    Publication date: January 17, 2008
    Inventor: Yutaka Tasaki
  • Patent number: 6035965
    Abstract: 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: Grant
    Filed: December 4, 1998
    Date of Patent: March 14, 2000
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Kyoji Fujiwara, Shinta Yamamura, Naoyuki Furuta, Tadanori Mizukami, Yutaka Tasaki, Takashi Mikami
  • Patent number: 5920041
    Abstract: 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: Grant
    Filed: February 23, 1998
    Date of Patent: July 6, 1999
    Assignee: Nitto Boseki Co.
    Inventors: Naoyuki Furuta, Shinta Yamamura, Tadanori Mizukami, Yutaka Tasaki, Takashi Mikami
  • Patent number: 5854453
    Abstract: 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: Grant
    Filed: April 9, 1997
    Date of Patent: December 29, 1998
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Kyoji Fujiwara, Shinta Yamamura, Naoyuki Furuta, Tadanori Mizukami, Yutaka Tasaki, Takashi Mikami
  • Patent number: 4884400
    Abstract: 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: Grant
    Filed: March 11, 1988
    Date of Patent: December 5, 1989
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yoshimasa Tanaka, Yutaka Tasaki