Patents by Inventor Raquel OVALLE

Raquel OVALLE 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).

  • Publication number: 20230345686
    Abstract: A method of embedding a screen in a substrate includes placing the screen on the substrate, and then melting part of the substrate, so that the screen becomes embedded in the substrate. The melting may involve heating at least part of the screen to melt part of the substrate, or directly heating the part of the substrate. The screen may be a screen of electrically-conductive material, and the heating may be Joule heating in which an electrical current is passed through the screen to heat the screen. Alternatively, the heating may involve microwave, conductive, or laser heating. The produced device of the substrate with an embedded screen may be an optical window with an embedded electromagnetic interference (EMI) screen, may be a touch screen or touch display, or may be a window with an embedded heating element, to give a few non-limiting examples.
    Type: Application
    Filed: April 26, 2023
    Publication date: October 26, 2023
    Inventors: Catherine Trent, Raquel Ovalle-Robles, James E. Foreman
  • Patent number: 11524862
    Abstract: A dispenser is described for dispensing nanofiber yarns that includes a housing that defines an inlet, an outlet, and a chamber. A spool, around which is wound a length of nanofiber yarn, is disposed within the chamber defined by the housing. The nanofiber yarn is threaded from the chamber through the outlet and can be dispensed in a controlled way that reduces the likelihood of developing knots within the nanofiber yarn, and which facilitates convenient application of the yarn onto an underlying surface. In some cases, the dispenser can be used to concurrently dispense an adhesive or other polymer along with the nanofiber yarn.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: December 13, 2022
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Márcio D. Lima, Raquel Ovalle-Robles
  • 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
  • Publication number: 20210164452
    Abstract: Polymer and nanotube-based actuators that include a thermochromic coating is disclosed. The actuators include a thermochromic material applied to a surface of the core fiber or the conductive element. Upon heating the actuator, the thermochromic coating undergoes a color transition to indicate a pre-determined temperature correlated to a rated critical temperature, important temperature of the actuator components, or a level of actuation.
    Type: Application
    Filed: May 10, 2019
    Publication date: June 3, 2021
    Applicant: LINTEC OF AMERICA, INC.
    Inventors: Jaeah LEE, Marcio Dias LIMA, Sergey LI, Raquel OVALLE-ROBLES
  • Patent number: 10981356
    Abstract: An adhesive sheet includes: a carbon nanotube sheet including a plurality of carbon nanotubes aligned preferentially in one direction within a plane of the sheet; and an adhesive agent layer including an adhesive agent, the adhesive agent layer being curable.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 20, 2021
    Assignee: LINTEC CORPORATION
    Inventors: Raquel Ovalle, Masaharu Ito, Kanzan Inoue
  • Publication number: 20210070581
    Abstract: A dispenser is described for dispensing nanofiber yarns that includes a housing that defines an inlet, an outlet, and a chamber. A spool, around which is wound a length of nanofiber yarn, is disposed within the chamber defined by the housing. The nanofiber yarn is threaded from the chamber through the outlet and can be dispensed in a controlled way that reduces the likelihood of developing knots within the nanofiber yarn, and which facilitates convenient application of the yarn onto an underlying surface. In some cases, the dispenser can be used to concurrently dispense an adhesive or other polymer along with the nanofiber yarn.
    Type: Application
    Filed: October 30, 2020
    Publication date: March 11, 2021
    Applicant: LINTEC OF AMERICA, INC.
    Inventors: Márcio D. LIMA, Raquel OVALLE-ROBLES
  • Patent number: 10843891
    Abstract: A dispenser is described for dispensing nanofiber yarns that includes a housing that defines an inlet, an outlet, and a chamber. A spool, around which is wound a length of nanofiber yarn, is disposed within the chamber defined by the housing. The nanofiber yarn is threaded from the chamber through the outlet and can be dispensed in a controlled way that reduces the likelihood of developing knots within the nanofiber yarn, and which facilitates convenient application of the yarn onto an underlying surface. In some cases, the dispenser can be used to concurrently dispense an adhesive or other polymer along with the nanofiber yarn.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: November 24, 2020
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: Marcio D. Lima, Raquel Ovalle-Robles
  • Publication number: 20200361741
    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: Application
    Filed: April 15, 2020
    Publication date: November 19, 2020
    Applicant: Lintec Of America, Inc.
    Inventors: Jordan Benson, Raquel Ovalle-Robles, Nicklas Keller
  • Patent number: 10800658
    Abstract: A laminate includes: a carbon nanotube sheet including a plurality of carbon nanotubes aligned preferentially in one direction within a plane of the sheet; and a first protection material having a surface in contact with the carbon nanotube sheet, the surface having a surface roughness Ra1 of 0.05 ?m or more.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: October 13, 2020
    Assignees: LINTEC OF AMERICA, INC., LINTEC CORPORATION
    Inventors: Masaharu Ito, Raquel Ovalle
  • Publication number: 20200203046
    Abstract: Holders for nanofiber sheets that can reduce the probability of damage to a nanofiber sheet during transport, handling, or experimental preparation are described. These holders can improve the convenience with which nanofiber sheets can be manipulated. Holders generally include two features: an outer case and a clamp disposed within the outer case. The clamp, which can be embodied in any of a variety of ways, mounts to a peripheral edge at one or more locations on the nanofiber sheet. The nanofiber sheet is held fixed in place within the outer case and is suspended within the chamber defined by the outer case and the client.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Applicant: Lintec of America, Inc.
    Inventors: Chi Huynh, Jaeah Lee, Raquel Ovalle-Robles
  • Patent number: 10562775
    Abstract: The present invention provides a method for producing a carbon nanotube sheet that is excellent in light transmittance and conductivity, and the carbon nanotube sheet. The method includes firstly modifying of modifying a free-standing unmodified carbon nanotube sheet in which a plurality of carbon nanotubes are aligned in a predetermined direction. The firstly modifying includes performing a densification process of bringing the unmodified carbon nanotube sheet into contact with either one of or both of vapor and liquid particles of a liquid substance to produce a modified carbon nanotube sheet that contains the carbon nanotubes which are mainly aligned in a predetermined direction, and that includes a high density portion where the carbon nanotubes are assembled together and a low density portion where density of the carbon nanotubes is relatively lower than density in the high density portion.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: February 18, 2020
    Assignees: Lintec Corporation, Lintec of America, Inc., Kinki University
    Inventors: Raquel Ovalle, Senku Tanaka, Kanzan Inoue
  • Patent number: 10315923
    Abstract: A sheet manufacturing device includes: a holder configured to hold a grown form of carbon nanotubes; a drawing unit configured to draw the carbon nanotubes from the grown form held by the holder; and a support unit configured to support the carbon nanotubes drawn by the drawing unit, the drawing unit including: a single drawing member configured to draw the carbon nanotubes; and a movable unit configured to move the drawing member, the drawing unit bringing the drawn carbon nanotubes to be supported by the support unit.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 11, 2019
    Assignees: LINTEC OF AMERICA INC., LINTEC CORPORATION
    Inventors: Raquel Ovalle, Carter Haines
  • Patent number: 10286637
    Abstract: An adhesive sheet includes: a carbon nanotube sheet including a plurality of carbon nanotubes aligned preferentially in one direction within a plane of the sheet; and an adhesive agent layer including an adhesive agent, in which a rupture elongation of the adhesive sheet is 10% or more.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: May 14, 2019
    Assignees: Lintec of America, Inc., Lintec Corporation
    Inventor: Raquel Ovalle
  • Publication number: 20180187343
    Abstract: A dispenser is described for dispensing nanofiber yarns that includes a housing that defines an inlet, an outlet, and a chamber. A spool, around which is wound a length of nanofiber yarn, is disposed within the chamber defined by the housing. The nanofiber yarn is threaded from the chamber through the outlet and can be dispensed in a controlled way that reduces the likelihood of developing knots within the nanofiber yarn, and which facilitates convenient application of the yarn onto an underlying surface. In some cases, the dispenser can be used to concurrently dispense an adhesive or other polymer along with the nanofiber yarn.
    Type: Application
    Filed: December 4, 2017
    Publication date: July 5, 2018
    Applicant: Lintec of America, Inc.
    Inventors: Marcio D. Lima, Raquel Ovalle-Robles
  • Publication number: 20180086642
    Abstract: A laminate includes: a carbon nanotube sheet including a plurality of carbon nanotubes aligned preferentially in one direction within a plane of the sheet; and a first protection material having a surface in contact with the carbon nanotube sheet, the surface having a surface roughness Ra1 of 0.05 ?m or more.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 29, 2018
    Inventors: Masaharu ITO, Raquel OVALLE
  • Publication number: 20180043665
    Abstract: An adhesive sheet includes: a carbon nanotube sheet including a plurality of carbon nanotubes aligned preferentially in one direction within a plane of the sheet; and an adhesive agent layer including an adhesive agent, in which a rupture elongation of the adhesive sheet is 10% or more.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 15, 2018
    Applicants: Lintec of America, Inc., Lintec Corporation
    Inventor: Raquel OVALLE
  • Publication number: 20180043659
    Abstract: An adhesive sheet includes: a carbon nanotube sheet including a plurality of carbon nanotubes aligned preferentially in one direction within a plane of the sheet; and an adhesive agent layer including an adhesive agent, the adhesive agent layer being curable.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 15, 2018
    Applicants: Lintec of America, Inc., Lintec Corporation
    Inventors: Raquel OVALLE, Masaharu ITO, Kanzan INOUE
  • Publication number: 20170362089
    Abstract: The present invention provides a method for producing a carbon nanotube sheet that is excellent in light transmittance and conductivity, and the carbon nanotube sheet. The method includes firstly modifying of modifying a free-standing unmodified carbon nanotube sheet in which a plurality of carbon nanotubes are aligned in a predetermined direction. The firstly modifying includes performing a densification process of bringing the unmodified carbon nanotube sheet into contact with either one of or both of vapor and liquid particles of a liquid substance to produce a modified carbon nanotube sheet that contains the carbon nanotubes which are mainly aligned in a predetermined direction, and that includes a high density portion where the carbon nanotubes are assembled together and a low density portion where density of the carbon nanotubes is relatively lower than density in the high density portion.
    Type: Application
    Filed: November 20, 2015
    Publication date: December 21, 2017
    Inventors: Raquel OVALLE, Senku TANAKA, Kanzan INOUE
  • Patent number: 9502711
    Abstract: Fabrication of yarns or other shaped articles from materials in powder form (or nanoparticles or nanofibers) using carbon nanotube/nanofiber sheet as a platform (template). This includes methods for fabricating biscrolled yarns using carbon nanotube/nanofiber sheets and biscrolled fibers fabricated thereby.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: November 22, 2016
    Assignee: Board of Regents, The University of Texas System
    Inventors: Shaoli Fang, Marcio Dias Lima, Xavier N. Lepro-Chavez, Javier Carretero-Gonzalez, Elizabeth Castillo-Martinez, Raquel Ovalle-Robles, Carter Sebastian Haines, David Michael Novitski, Mohammad H. Haque, Chihye Lewis-Azad, Mikhail Kozlov, Anvar A. Zakhidov, Ray H. Baughman
  • Publication number: 20160229113
    Abstract: A sheet manufacturing device includes: a holder configured to hold a grown form of carbon nanotubes; a drawing unit configured to draw the carbon nanotubes from the grown form held by the holder; and a support unit configured to support the carbon nanotubes drawn by the drawing unit, the drawing unit including: a single drawing member configured to draw the carbon nanotubes; and a movable unit configured to move the drawing member, the drawing unit bringing the drawn carbon nanotubes to be supported by the support unit.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 11, 2016
    Inventors: Raquel OVALLE, Carter HAINES