Patents Assigned to LINTEC OF AMERICA, INC.
  • Publication number: 20220363543
    Abstract: An apparatus and method for transferring nanofiber structures (e.g., nanofiber films, nanofiber sheets, stacks of nanofiber grids, nanofiber films, nanofiber sheets, and combinations thereof) between various substrates are described. The techniques described use a soluble layer on a substrate that is subsequently dissolved, thus freeing the nanofiber structure from the substrate. This liquid phase techniques preserves the mechanical integrity and the purity of the nanofiber structures.
    Type: Application
    Filed: October 23, 2020
    Publication date: November 17, 2022
    Applicant: LINTEC OF AMERICA, INC.
    Inventor: Marcio D. LIMA
  • Patent number: 11491004
    Abstract: A carbon nanotube (CNT) artificial muscle valve includes a hollow CNT tube including: a plurality of CNT sheets wrapped in the form of a hollow tube; and a guest material disposed between the CNT sheets and that permeates the CNT sheets. At least one portion of the hollow CNT tube collapses in response to a pressure of a fluid in the hollow CNT tube exceeding a predetermined pressure. The at least one portion of the hollow CNT tube collapses because the at least one portion of the hollow CNT tube generates a torque non-uniformity relative of a remaining portion of the hollow CNT tube.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: November 8, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventor: Marcio Dias Lima
  • Patent number: 11486063
    Abstract: An insulated nanofiber having a continuous nanofiber collection extending along a longitudinal axis with an outside surface and an inside portion is described. A first material infiltrates the inside portion, where the outside surface of the nanofiber collection is substantially free of the first material. An electrically-insulating second material coats the outside surface of the nanofiber collection. A method of making an insulated nanofiber collection is also disclosed.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: November 1, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Julia Bykova, Marcio D. Lima
  • Publication number: 20220342267
    Abstract: Composite assemblies are described that can be switched from a transparent state to a non transparent state, and in some examples even switched between different colors/reflectivities in the non transparent state. Switching between these states can be initiated by application of an electrical current to Ag carbon nanotube yarns in contact with an electrochromic electrolyte. The carbon nanotube yarns increase the efficiency with which electrons are provided to an electrolyte.
    Type: Application
    Filed: September 11, 2020
    Publication date: October 27, 2022
    Applicant: LINTEC OF AMERICA, INC.
    Inventor: Jaeah LEE
  • Patent number: 11479020
    Abstract: A carbon nanotube sheet structure includes: a carbon nanotube sheet; a first base material including a first base material surface facing the carbon nanotube sheet; and a first spacer providing a gap between the carbon nanotube sheet and the first base material. A first base material surface of the first base material includes a first region on which the first spacer is provided and a second region on which the first spacer is not provided. The first base material is spaced apart from the carbon nanotube sheet at the second region on the first base material surface.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: October 25, 2022
    Assignees: LINTEC CORPORATION, LINTEC OF AMERICA, INC.
    Inventors: Akio Kabuto, Masaharu Ito, Kanzan Inoue
  • Patent number: 11479438
    Abstract: A nanofiber structure applicator is described that can remove two substrates from opposing major surfaces of a nanofiber structure. The two substrates can have differing adhesive strengths with the nanofiber forest. This difference in adhesive strength can be used to reorient nanofibers that form the nanofiber structure relative to the final surface on which they are applied. This reorienting of the individual nanofibers within a nanofiber structure can be used to tailor some of the properties of the nanofiber structure. Furthermore, the nanofiber structure applicator is configured can improve the convenience with which a nanofiber structure can be transported and applied to an application surface.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: October 25, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Jordan Benson, Raquel Ovalle-Robles, Nicklas Keller
  • Patent number: 11466671
    Abstract: A hinge-type actuator device in accordance with the present disclosure may include a first and second paddle, a first and second artificial muscle actuator segment, and a plurality of contacts, where the first and second artificial muscle actuator segments are actuated via the contacts, actuation of the first artificial muscle actuator segment causes the first and second paddle to open the hinge-type actuator, and actuation of the second artificial muscle actuator segment causes the first and second paddle to dose the hinge-type actuator.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: October 11, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Marcio Dias Lima, Yang Yang, Luis Plata, Marilu Guerrero, Franklin Le, Randy Allen
  • Patent number: 11434881
    Abstract: An apparatus and method of manufacturing an apparatus that includes a rectangular frame, a first load bearing conductive support bisecting the rectangular frame lengthwise, and two artificial muscle actuators disposed on the same sides of the rectangular frame as the first load bearing conductive support on opposite sides of the first load bearing conductive support is disclosed. The apparatus includes a non-conductive platform, where the width of the frame is sufficiently wide to prevent the non-conductive platform from touching the sides of the frame when rotated about the axis of the load bearing support. The apparatus includes a device disposed in the center of the non-conductive platform. Individual actuation of the artificial muscle actuators rotates the non-conductive platform about the axis of the first load bearing conductive support.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: September 6, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Marcio Dias Lima, Sergey Li
  • Publication number: 20220250009
    Abstract: An array of discrete nanofiber films that are physically separated from one another are described. Techniques for forming the nanofiber film array are also described. Techniques for forming these structures include placing a suspension of nanofibers and/or nanoparticles on a patterned substrate. A pressure differential is applied, drawing the solvent of the suspension through holes in a mask. The nanofibers collect on an impermeable layer on the mask in a pattern corresponding to the negative features (grooves, holes, trenches) of the mask as the solvent is flowed through the holes.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 11, 2022
    Applicant: LINTEC OF AMERICA, INC.
    Inventor: Marcio D. LIMA
  • Patent number: 11405985
    Abstract: The present disclosure provides a heat-generating sheet for use in three-dimensional molding including: a pseudo-sheet structure in which plural electrically conductive linear bodies extending unidirectionally are arranged spaced apart from each other, each of the electrically conductive linear bodies having a diameter of from 7 ?m to 75 ?m; and a resin protective layer provided at a side of one surface of the pseudo-sheet structure. In this heat-generating sheet for use in three-dimensional molding, the total thickness of layers provided at the side of the pseudo-sheet structure at which the resin protective layer is provided is from 1.5 times to 80 times the diameter of the electrically conductive linear bodies. The present disclosure also provides a surface heat-generating article in which the heat-generating sheet for use in three-dimensional molding is used.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: August 2, 2022
    Assignees: LINTEC OF AMERICA, INC., LINTEC CORPORATION
    Inventors: Masaharu Ito, Kanzan Inoue
  • Patent number: 11377537
    Abstract: Techniques are disclosed for producing multilayered composites of adhesive nanofiber composites. Specifically, one or more sheets of highly aligned nanofibers are partially embedded in an adhesive such that at least a portion of the nanofiber sheet is free from adhesive and is available to conduct current with adjacent electrical features. In some example embodiments, the adhesive nanofiber composites are metallized with a conductive metal and in these and other embodiments, the adhesive nanofiber composites may also be stretchable.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: July 5, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Marcio D. Lima, Julia Bykova
  • Patent number: 11370191
    Abstract: A density of a nanofiber sheet can be changed using an edged surface, and in particular an arcuate edged surface. As described herein, a nanofiber sheet is drawn over (and in contact with) an arcuate edged surface. Depending on whether the arcuate surface facing a direction opposite the direction in which the nanofiber sheet is being drawn is convex or concave determines whether the nanofiber sheet density is increased relative to the as-drawn sheet or decreased relative to the as-drawn sheet.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: June 28, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Marcio D. Lima, Julia Bykova
  • Patent number: 11338432
    Abstract: A muscle sleeve includes: a sleeve-formed fabric; a plurality of first actuating muscles disposed next to each other and in parallel with each other on a first side of the sleeve-formed fabric; a plurality of second actuating muscles disposed next to each other and in parallel with each other on a second side of the sleeve-formed fabric; a plurality of fasteners that secure ends of the first and second actuating muscles to the fabric; and a crimp secured to the fabric.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: May 24, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Marcio Dias Lima, Calvin Truong, Essence Beasley
  • Publication number: 20220144641
    Abstract: Nanofiber membranes are described that include multiple layers of nanofiber structures, where each structure is a composite composition of multiwall carbon nanotubes and one or both of single wall and/or few walled carbon nanotubes. By selecting the relative proportions of multiwall and one or more of single/few wall carbon nanotubes in a nanofiber film, the membrane can be fabricated to withstand the heating that occurs during operation in an EUV lithography machine, while also having enough mechanical integrity to withstand pressure changes of between 1 atmosphere (atm) and 2 atm between operating cycles of an EUV lithography machine.
    Type: Application
    Filed: May 26, 2020
    Publication date: May 12, 2022
    Applicant: LINTEC OF AMERICA, INC.
    Inventor: Marcio D. LIMA
  • Patent number: 11311394
    Abstract: An actuator device and method of manufacturing the same that includes at least two or more panels disposed in a frame is disclosed. Each of the two or more panels include a first rotationally-actuating artificial muscle fiber section between a first contact point of the frame and a tether point located on the panel and a second rotationally-actuating artificial muscle fiber section between the tether point and a second contact point on the frame. The tether point is approximately halfway across the length of the panel. A first and second muscle support is disposed on the panel between the tether point and the first contact point. The actuator device also includes a synchronization rod attached to the at least two or more panels.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: April 26, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventor: Marcio Dias Lima
  • Patent number: 11221001
    Abstract: An actuator and method of manufacturing an actuator that includes a core fiber with polymers aligned along the length of the core fiber, and a wire that is wound around and fixed to the core fiber. The winding of the wire is engineered based on the torsional actuation. Upon heating the core fiber, the wire impedes radial expansion of the core fiber and converts the radial expansion into a torsional actuation.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 11, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventor: Marcio Dias Lima
  • Patent number: 11199181
    Abstract: Methods, system, and apparatus for producing an actuator device are disclosed. The method may include twisting a muscle fiber; coiling the twisted muscle fiber about a mandrel; securing the muscle fiber onto the mandrel using a securing means; heating the muscle fiber to a predetermined temperature using a heating means; and removing the coiled muscle fiber from the mandrel. The twisting, coiling, securing, heating, and removing is a process that is continued until the muscle fiber is a desired length.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 14, 2021
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Randy Allen, Marcio Dias Lima, Sergey Li
  • Publication number: 20210380413
    Abstract: A nanofiber yarn placement system includes a yarn dispenser assembly, and a placement assembly. The placement assembly includes a compliant flange, and a guide connected to the compliant flange. The guide defining a channel. The channel includes at least one internal surface and at least one corner defined by the at least one internal surface.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 9, 2021
    Applicant: LINTEC OF AMERICA, INC.
    Inventors: Julia BYKOVA, Marcio D. LIMA
  • Publication number: 20210340012
    Abstract: Techniques are described for transferring nanofiber forests using transfer films that either lack a conventional adhesive at the substrate-nanofiber forest interface or that include a diffusion barrier that prevents diffusion of adhesive molecules (or other polymer molecules mobile at ambient temperatures) into the nanofiber forest. These techniques can be applied to single layer nanofiber forests or stacks of multiple nanofiber forest. By selecting the bond strength between the nanofiber forest and the transfer films, the nanofibers can be aligned in a common direction that includes, but is not limited to, perpendicular to a substrate or transfer film.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Applicant: Lintec of America, Inc.
    Inventor: Chi HUYNH
  • Publication number: 20210339455
    Abstract: Methods for increasing transparency of a nanofiber sheet to many wavelengths of radiation, including those wavelengths within the visible spectrum, are described. These techniques include straining a nanofiber sheet so as to increase its width.
    Type: Application
    Filed: September 27, 2019
    Publication date: November 4, 2021
    Applicant: LINTEC OF AMERICA, INC.
    Inventor: Jaeah LEE