Patents by Inventor Takayuki Terasaki

Takayuki Terasaki 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: 10297840
    Abstract: A film member stacking device includes a block having a bottom surface portion provided with an outer end configured to contact with an inner end of an opening of a first film member. The outer end of the bottom surface portion of the block is larger than the inner end of the opening of the first film member. The film member stacking device further includes a member configured to uniformly force the first film member in a direction of the bottom surface portion of the block. The inner end of the opening of the first film member is positioned by the block, and the first film member is stacked on a second film member. The block is configured to resist deformation upon contact between the outer end of the bottom surface portion of the block and the inner end of the opening of the first film member.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: May 21, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kei Ono, Masaya Yamamoto, Norifumi Horibe, Kenichi Toyoshima, Takayuki Terasaki
  • Patent number: 9539730
    Abstract: A holding apparatus for a fuel cell electrolyte membrane includes a support having a flat surface part which supports an electrolyte membrane on which catalyst layers are disposed, and which constitutes a membrane electrode assembly. The flat surface part has a frame-shaped recess positioned outside an outer circumference of the catalyst layers, and the recess is connected to an air-sucking section, and attracts the electrolyte membrane by sucking air in the recess.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: January 10, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kei Ono, Norifumi Horibe, Masaya Yamamoto, Kenichi Toyoshima, Takayuki Terasaki
  • Patent number: 9509007
    Abstract: A transferring method for transferring a catalyst layer to a desired position on an electrolyte film includes the following processes. A multi-layer body is formed by stacking base materials and an electrolyte film on one another such that catalyst layers formed on the base materials are brought into contact with the electrolyte film. The multi-layer body is pressed from a stacking direction. The multi-layer body is heated to a first temperature. The heating is stopped after a predetermined time passes from when pressing is started. The pressing is stopped when the temperature of the catalyst layers becomes a second temperature or lower, which is a temperature lower than the first temperature, after the heating is stopped.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: November 29, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaya Yamamoto, Kenichi Toyoshima, Kei Ono, Norifumi Horibe, Takayuki Terasaki
  • Patent number: 9486821
    Abstract: [Object] To provide a coating apparatus that can prevent distortion of the shape of a coating area on a sheet member. [Solution Means] A coating apparatus 50 includes a suction roller peripheral wall 114a (base plate 70) on which a flexible electrolyte membrane 21 shaped like a thin film (sheet member 60) is placed, drawing unit 80 that draws the electrolyte membrane on the suction roller peripheral wall, and a coating mechanism 90 that applies catalyst ink 91 (material) onto the electrolyte membrane drawn on the suction roller peripheral wall by the drawing unit. The electrolyte membrane has, in a range from a center portion to a portion on an inner side of an outer peripheral edge 61, a coating area 62 where the catalyst ink is applied.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: November 8, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kenichi Toyoshima, Kei Ono, Masaya Yamamoto, Norifumi Horibe, Takayuki Terasaki
  • Patent number: 9437882
    Abstract: A holding apparatus for a fuel cell gasket has a support having a flat surface part which attracts the gasket and serves to stack a frame-shaped gasket on an outer circumference of an electrolyte membrane or a gas diffusion layer constituting a membrane electrode assembly on which a catalyst layer is disposed. The flat surface part has a frame-shaped recess corresponding to a shape of the gasket, and the recess is connected to an air-sucking section, with the gasket attracted by sucking air in the recess.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: September 6, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kei Ono, Masaya Yamamoto, Kenichi Toyoshima, Norifumi Horibe, Takayuki Terasaki
  • Patent number: 9331340
    Abstract: A catalytic ink preparation method comprises mixing a first ion conducting body and a catalyst, preparing a first ink, and concentrating the first ink. The method is characterized by further comprising a step of adding a second ion conducting body to the concentrated first ink. With such a catalytic ink preparation method, the quantity of solvent in the first ion conducting body is reduced by concentration. In other words, the first ion conducting body adheres to the catalyst, and re-dissolution is not prone to occurring with the first ion conducting body when the second ion conducting body is added. Thus, it is possible to efficiently manufacture an electrode catalyst in which a significant part of the surface of the catalyst is covered with two ionomer layers, and there is almost no portion which is covered with only one ionomer layer.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: May 3, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kenichi Toyoshima, Norifumi Horibe, Takayuki Terasaki
  • Patent number: 9331345
    Abstract: A bonded sheet to be applied to a membrane electrode assembly includes gaskets serving as a first sheet member and an electrolyte membrane serving as a second sheet member stacked on the gaskets. The gaskets each include a first bonded portion where grooves provided in a sheet surface direction at least partly face sheet end portions, and a second bonded portion having no groove. The electrolyte membrane is stacked on the gaskets in the first bonded portion and the second bonded portion.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: May 3, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Masaya Yamamoto, Norifumi Horibe, Kei Ono, Kenichi Toyoshima, Takayuki Terasaki
  • Patent number: 9219282
    Abstract: A membrane electrode assembly includes an electrolyte membran and frame-shaped first and second gaskets disposed on both surfaces of the electrolyte membrane. The first and second gaskets have overlapping portions which are positioned at a peripheral edge of the electrolyte membrane and face to the electrolyte membrane, and bonding portions which are positioned outside of the peripheral edge and bonded to each other. The overlapping portions and the bonding portions have through holes which extend in a thickness direction of the electrolyte membrane. An aperture ratio of the through holes of the overlapping portions is greater than an aperture ratio of the through holes of the bonding.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: December 22, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kei Ono, Takayuki Terasaki, Masaya Yamamoto, Kenichi Toyoshima, Norifumi Horibe
  • Publication number: 20150263361
    Abstract: [Problem] Provided is a film member stacking device which is capable of correcting deformation of the film member. [Solution] The film member stacking device has a block 11 provided with an outer end that contacts with an inner end of an opening of a first film member which has the opening, in which the block 11 is passed through the opening of the first film member such that the inner end of the opening of the first film member contacts with the outer end of the block 11. Accordingly, it is possible to correct deformation of the opening of the first film member to be positioned.
    Type: Application
    Filed: June 20, 2013
    Publication date: September 17, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kei Ono, Masaya Yamamoto, Norifumi Horibe, Kenichi Toyoshima, Takayuki Terasaki
  • Publication number: 20150217308
    Abstract: [Object] To provide a coating apparatus that can prevent distortion of the shape of a coating area on a sheet member. [Solution Means] A coating apparatus 50 includes a suction roller peripheral wall 114a (base plate 70) on which a flexible electrolyte membrane 21 shaped like a thin film (sheet member 60) is placed, drawing unit 80 that draws the electrolyte membrane on the suction roller peripheral wall, and a coating mechanism 90 that applies catalyst ink 91 (material) onto the electrolyte membrane drawn on the suction roller peripheral wall by the drawing unit. The electrolyte membrane has, in a range from a center portion to a portion on an inner side of an outer peripheral edge 61, a coating area 62 where the catalyst ink is applied.
    Type: Application
    Filed: August 27, 2013
    Publication date: August 6, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kenichi Toyoshima, Kei Ono, Masaya Yamamoto, Norifumi Horibe, Takayuki Terasaki
  • Publication number: 20150214559
    Abstract: A bonded sheet to be applied to a membrane electrode assembly includes gaskets serving as a first sheet member and an electrolyte membrane serving as a second sheet member stacked on the gaskets. The gaskets each include a first bonded portion where grooves provided in a sheet surface direction at least partly face sheet end portions, and a second bonded portion having no groove. The electrolyte membrane is stacked on the gaskets in the first bonded portion and the second bonded portion.
    Type: Application
    Filed: June 24, 2013
    Publication date: July 30, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masaya Yamamoto, Norifumi Horibe, Kei Ono, Kenichi Toyoshima, Takayuki Terasaki
  • Publication number: 20150200406
    Abstract: A holding apparatus for a fuel cell gasket has a support having a flat surface part which attracts the gasket and serves to stack a frame-shaped gasket on an outer circumference of an electrolyte membrane or a gas diffusion layer constituting a membrane electrode assembly on which a catalyst layer is disposed. The flat surface part has a frame-shaped recess corresponding to a shape of the gasket, and the recess is connected to an air-sucking section, with the gasket attracted by sucking air in the recess.
    Type: Application
    Filed: June 24, 2013
    Publication date: July 16, 2015
    Inventors: Kei Ono, Masaya Yamamoto, Kenichi Toyoshima, Norifumi Horibe, Takayuki Terasaki
  • Publication number: 20150188151
    Abstract: A membrane electrode assembly includes an electrolyte membrane, and frame-shaped first and second gaskets disposed on both surfaces of the electrolyte membrane. The first and second gaskets have overlapping portions which are positioned at a peripheral edge of the electrolyte membrane and face to the electrolyte membrane, and bonding portions which are positioned outside of the peripheral edge and bonded to each other. The overlapping portions and the bonding portions have through holes which extend in a thickness direction of the electrolyte membrane. An aperture ratio of the through holes of the overlapping portions is greater than an aperture ratio of the through holes of the bonding.
    Type: Application
    Filed: June 24, 2013
    Publication date: July 2, 2015
    Inventors: Kei Ono, Takayuki Terasaki, Masaya Yamamoto, Kenichi Toyoshima, Norifumi Horibe
  • Publication number: 20150165627
    Abstract: A holding apparatus for a fuel cell electrolyte membrane includes a support having a flat surface part which supports an electrolyte membrane on which catalyst layers are disposed, and which constitutes a membrane electrode assembly. The flat surface part has a frame-shaped recess positioned outside an outer circumference of the catalyst layers, and the recess is connected to an air-sucking section, and attracts the electrolyte membrane by sucking air in the recess.
    Type: Application
    Filed: June 24, 2013
    Publication date: June 18, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kei Ono, Norifumi Horibe, Masaya Yamamoto, Kenichi Toyoshima, Takayuki Terasaki
  • Publication number: 20150171450
    Abstract: A transferring method for transferring a catalyst layer to a desired position on an electrolyte film includes the following processes. A multi-layer body is formed by stacking base materials and an electrolyte film on one another such that catalyst layers formed on the base materials are brought into contact with the electrolyte film. The multi-layer body is pressed from a stacking direction. The multi-layer body is heated to a first temperature. The heating is stopped after a predetermined time passes from when pressing is started. The pressing is stopped when the temperature of the catalyst layers becomes a second temperature or lower, which is a temperature lower than the first temperature, after the heating is stopped. The changes to the abstract are shown below: A transferring method for transferring a catalyst layer to a desired position on an electrolyte film includes the following processes.
    Type: Application
    Filed: June 24, 2013
    Publication date: June 18, 2015
    Inventors: Masaya Yamamoto, Kenichi Toyoshima, Kei Ono, Norifumi Horibe, Takayuki Terasaki
  • Publication number: 20140228200
    Abstract: A catalytic ink preparation method comprises mixing a first ion conducting body and a catalyst, preparing a first ink, and concentrating the first ink. The method is characterized by further comprising a step of adding a second ion conducting body to the concentrated first ink. With such a catalytic ink preparation method, the quantity of solvent in the first ion conducting body is reduced by concentration. In other words, the first ion conducting body adheres to the catalyst, and re-dissolution is not prone to occurring with the first ion conducting body when the second ion conducting body is added. Thus, it is possible to efficiently manufacture an electrode catalyst in which a significant part of the surface of the catalyst is covered with two ionomer layers, and there is almost no portion which is covered with only one ionomer layer.
    Type: Application
    Filed: August 14, 2012
    Publication date: August 14, 2014
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kenichi Toyoshima, Norifumi Horibe, Takayuki Terasaki
  • Patent number: 7624971
    Abstract: A device includes a housing having a hollow center and a case having a hollow fiber membrane. The case is at least partially located inside the hollow center of the housing. A first gas flow flows to the hollow center through an introducing pipe and exits the housing via a discharging pipe. A second gas flow flows through the hollow fiber membrane in the case. The first gas flow enters the case through an inflow opening in the case from a gap between a wall of the housing and the case and exits the case through a discharging opening in the case to the gap between the wall of the housing and the case. The introducing pipe is located adjacent to a dividing wall. The device provides a humidifying property by transferring moisture from the first gas flow to the second gas flow or vice versa.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: December 1, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takayuki Terasaki, Masahiro Usuda, Masaaki Nakata
  • Publication number: 20090130495
    Abstract: A device includes a housing having a hollow center and a case having a hollow fiber membrane. The case is at least partially located inside the hollow center of the housing. A first gas flow flows to the hollow center through an introducing pipe and exits the housing via a discharging pipe. A second gas flow flows through the hollow fiber membrane in the case. The first gas flow enters the case through an inflow opening in the case from a gap between a wall of the housing and the case and exits the case through a discharging opening in the case to the gap between the wall of the housing and the case. The introducing pipe is located adjacent to a dividing wall. The device provides a humidifying property by transferring moisture from the first gas flow to the second gas flow or vice versa.
    Type: Application
    Filed: August 3, 2006
    Publication date: May 21, 2009
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Takayuki Terasaki, Masahiro Usuda, Masaaki Nakata
  • Publication number: 20090047565
    Abstract: A separator (5, 6) for a fuel cell (1) comprises a gas passage (16-20, 36-40) facing an electrode (3, 4). The gas passage (16-20, 36-40) comprises a rapid expansion which enlarges a width of the gas passage (16-20, 36-40) in a step-like fashion from an upstream side to a downstream side with respect to a flow of gas. The gas passage (16-20, 36-40) upstream of the rapid expansion is thereby made narrow which prevents dry-out of the fuel cell (1) while the rapid expansion enhances a moisture bead sweeping force of the gas flow which prevents flooding from occurring in the gas passage (16-20, 36-40) downstream of the rapid expansion.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 19, 2009
    Inventors: Takayuki TERASAKI, Keigo Ikezoe