Patents by Inventor David Alan Baldwin

David Alan Baldwin 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: 12059452
    Abstract: The present invention relates to fusion proteins comprising an insulin receptor agonist fused to a human IgG Fc region through the use of a peptide linker, and the use of such fusion proteins in the treatment of diabetes. The fusion protein of the present invention has an extended time action profile and is useful for providing basal glucose control for an extended period of time.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: August 13, 2024
    Assignee: ELI LILLY AND COMPANY
    Inventors: David Bruce Baldwin, John Michael Beals, Jonathan Wesley Day, Craig Duane Dickinson, Andrew Ihor Korytko, Gregory Alan Lazar
  • Patent number: 7316764
    Abstract: A system and method for performing sputter etching includes an ion source that generates an ion current that is directed at a substrate and an electron source that generates an electron current directed at the substrate. Biasing circuitry biases the substrate with an a-symmetric bi-polar DC voltage pulse signal. The biasing circuitry is formed from a positive voltage source with respect to ground, a negative voltage source with respect to ground and a high frequency switch. At least one current sensor, coupled to the biasing circuitry, monitors a positive current and a negative current from the substrate during one or more cycles of the a-symmetric bi-polar DC voltage pulse signal. A control system, coupled to the at least one current sensor, varies the ion current independently from the electron current. The ion and electron sources create a continuous plasma that is proximate the substrate and the biasing circuitry causes the substrate to alternatively attract ions and electrons from the plasma.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: January 8, 2008
    Assignee: 4 Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 7177506
    Abstract: A bench-joining optical component and a first optical component are aligned on a first optical bench, and then rigidly coupled to the first bench, in order to form a first portion of an optical subassembly. Following completion of the first portion, all components in the first portion are pre-aligned and fixed with respect to each other, moving as a unit. A third optical component is aligned and permanently coupled to a second optical bench, in order to form a second portion of the optical sub-assembly. The first and second portions of optical sub-assembly are combined by positioning an exposed side of the bench joining optical component on the second bench, aligning the bench-joining optical component with the third optical component on the second bench, and permanently securing the bench-joining optical component to the second bench.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: February 13, 2007
    Assignee: 4 Wave, Inc.
    Inventors: David Alan Baldwin, Michael Joseph Minnemann
  • Patent number: 6819871
    Abstract: A multi-channel optical device includes a first plurality of optical structures formed simultaneously using vapor deposition on different regions of a common substrate. Each optical structure in the plurality is comprised of a plurality of thin-film layers. The thickness of each layer in a given optical structure corresponds to a wavelength associated with one of the channels. A reflector has a surface parallel to the common substrate, and a transport region is disposed between the first plurality of optical structures and the reflector. An aperture is disposed at one end of the transport region, and the first plurality of optical structures are disposed along a length of the transport region. When an input optical signal is provided to the aperture, the device functions as an optical demultiplexer and output optical signals associated with different ones of the channels are generated at separate positions along a length of the transport region.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 16, 2004
    Assignee: 4 Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6723209
    Abstract: A system and method for forming a chemically reacted layer proximate an exposed surface of a substrate is disclosed. A gas supply provides a chemically reactive molecular gas to an ion source that generates a divergent ion current directed at a target. The ion current contains at least one species of chemically reactive molecular ion, and the target is disposed in a chamber having a partial vacuum. A voltage source applies a bias to the target such that chemically reactive molecular ions from the ion source are accelerated toward the target with sufficient kinetic energy to dissociate at least some of the chemically reactive molecular ions by collision with the surface of the target.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: April 20, 2004
    Assignee: 4-Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6689255
    Abstract: A system and method for manufacturing thin-film structures disposed on a substrate. The thin-film structures have different respective thicknesses that vary along a radius of the substrate. A substrate rotates about an axis of rotation and a source of deposited material is directed at the rotating substrate. A mask having a stepped profile is positioned between the rotating substrate and the source. The stepped mask selectively blocks material emanating from the source from reaching the substrate. Each step of the profile of the mask corresponds to one of the respective thicknesses of the thin-film structures. The radius along which the different respective thicknesses of the film-thin structures vary is measured from the axis of rotation of the rotating substrate, and the substrate includes at least one wafer having a center that is either coincident or offset from the axis of rotation.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 10, 2004
    Assignee: 4 Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6679976
    Abstract: A system and method for performing sputter deposition includes at least one ion source that generates at least one ion current directed at first and second targets, at least one electron source that generates at least one electron current directed at the first and second targets, and circuitry that biases the first and second targets with independent first and second DC voltage pulse signals. A first current sensor, coupled to the biasing circuitry, monitors a positive current and a negative current from the first target during one or more cycles of the first DC voltage pulse signal, and a second current sensor, coupled to the biasing circuitry, monitors a positive current and a negative current from the second target during one or more cycles of the second DC voltage pulse signal. A controller, coupled to the first and second current sensors, varies the at least one ion current independently from the at least one electron current.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: January 20, 2004
    Assignee: 4Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6610179
    Abstract: A system and method for controlling a deposition thickness distribution over a substrate. A motor rotates the substrate, and at least one sensor senses the deposition thickness of the substrate at two or more radii on the substrate. An actuator varies a shadow of a mask disposed over a target used to sputter material on the substrate. An ion source generates an ion beam that is directed toward the target. The mask is positioned between the ion source and the target, and selectively blocks ion current from the ion source from reaching the target. A process controller is coupled to the deposition thickness sensor and the actuator. In response to the sensed deposition thickness, the process controller varies the shadow of the mask with respect to the target to control the deposition thickness distribution over the substrate.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: August 26, 2003
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Publication number: 20030024807
    Abstract: A system and method for forming a chemically reacted layer proximate an exposed surface of a substrate. A gas supply provides a chemically reactive molecular gas to an ion source that generates a divergent ion current directed at a target. The ion current contains at least one species of chemically reactive molecular ion, and the target is disposed in a chamber having a partial vacuum. A voltage source applies a bias to the target such that chemically reactive molecular ions from the ion source are accelerated toward the target with sufficient kinetic energy to dissociate at least some of the chemically reactive molecular ions by collision with the surface of the target to form a population of neutral chemically reactive molecular fragments, atoms or radicals at least some of which scatter away from the surface of the target and into the chamber.
    Type: Application
    Filed: July 22, 2002
    Publication date: February 6, 2003
    Applicant: 4Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Publication number: 20020189938
    Abstract: A system and method for performing sputter deposition includes at least one ion source that generates at least one ion current directed at first and second targets, at least one electron source that generates at least one electron current directed at the first and second targets, and circuitry that biases the first and second targets with independent first and second DC voltage pulse signals. A first current sensor, coupled to the biasing circuitry, monitors a positive current and a negative current from the first target during one or more cycles of the first DC voltage pulse signal, and a second current sensor, coupled to the biasing circuitry, monitors a positive current and a negative current from the second target during one or more cycles of the second DC voltage pulse signal. A controller, coupled to the first and second current sensors, varies the at least one ion current independently from the at least one electron current.
    Type: Application
    Filed: May 2, 2002
    Publication date: December 19, 2002
    Applicant: 4Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6488821
    Abstract: A system for performing sputter disposition on a substrate. A divergent ion current source generates a divergent ion beam. The ion current source has a central axis about which ions are directed toward a surface of a negatively biased target. A rotating substrate is positioned proximate to the target. The central axis of the ion current source is normal to the surface of the target and parallel to a deposition surface of the rotating substrate.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: December 3, 2002
    Assignee: 4 Wave Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Publication number: 20020174832
    Abstract: A system and method for controlling a circumferential deposition thickness distribution on a substrate includes a motor that rotates the substrate and a positioning sensor that senses an angular position of the substrate. At least one deposition thickness sensor senses the deposition thickness of the substrate at multiple positions on a circumference of a circle centered about an axis of rotation of the substrate. At least one controller drives a vapor source used to emit material for a deposition on a substrate. The at least one controller is coupled to the positioning sensor and the deposition thickness sensor. The controller synchronously varies an emission rate of material from the vapor source with respect to the angular position of the substrate to control the circumferential deposition thickness distribution.
    Type: Application
    Filed: April 25, 2002
    Publication date: November 28, 2002
    Applicant: 4Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Publication number: 20020155221
    Abstract: A system and method for manufacturing thin-film structures disposed on a substrate. The thin-film structures have different respective thicknesses that vary along a radius of the substrate. A substrate rotates about an axis of rotation and a source of deposited material is directed at the rotating substrate. A mask having a stepped profile is positioned between the rotating substrate and the source. The stepped mask selectively blocks material emanating from the source from reaching the substrate. Each step of the profile of the mask corresponds to one of the respective thicknesses of the thin-film structures. The radius along which the different respective thicknesses of the film-thin structures vary is measured from the axis of rotation of the rotating substrate, and the substrate includes at least one wafer having a center that is either coincident or offset from the axis of rotation.
    Type: Application
    Filed: June 10, 2002
    Publication date: October 24, 2002
    Applicant: 4wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Publication number: 20020131182
    Abstract: A system and method for controlling a deposition thickness distribution over a substrate. A motor rotates the substrate, and at least one sensor senses the deposition thickness of the substrate at two or more radii on the substrate. An actuator varies a shadow of a mask disposed over a target used to sputter material on the substrate. An ion source generates an ion beam that is directed toward the target. The mask is positioned between the ion source and the target, and selectively blocks ion current from the ion source from reaching the target. A process controller is coupled to the deposition thickness sensor and the actuator. In response to the sensed deposition thickness, the process controller varies the shadow of the mask with respect to the target to control the deposition thickness distribution over the substrate.
    Type: Application
    Filed: March 16, 2001
    Publication date: September 19, 2002
    Applicant: 4Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Publication number: 20020130031
    Abstract: A system for performing sputter disposition on a substrate. A divergent ion current source generates a divergent ion beam. The ion current source has a central axis about which ions are directed toward a surface of a negatively biased target. A rotating substrate is positioned proximate to the target. The central axis of the ion current source is normal to the surface of the target and parallel to a deposition surface of the rotating substrate.
    Type: Application
    Filed: May 2, 2002
    Publication date: September 19, 2002
    Applicant: 4Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Publication number: 20020130040
    Abstract: A system for performing sputter disposition on a substrate. A divergent ion current source generates a divergent ion beam. The ion current source has a central axis about which ions are directed toward a surface of a negatively biased target. A rotating substrate is positioned proximate to the target. The central axis of the ion current source is normal to the surface of the target and parallel to a deposition surface of the rotating substrate.
    Type: Application
    Filed: March 16, 2001
    Publication date: September 19, 2002
    Applicant: 4 Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6419802
    Abstract: A system and method for controlling a circumferential deposition thickness distribution on a substrate includes a motor that rotates the substrate and a position sensor that senses a position of the substrate. At least one deposition thickness sensor senses the deposition thickness of the substrate at multiple positions on a circumference of a circle centered about an axis of rotation of the substrate. At least one controller drives a vapor source used to emit material for a deposition on a substrate. The at least one controller is coupled to the position sensor and the deposition thickness sensor. The controller synchronously varies an emission rate of material from the vapor source with respect to the position of the substrate to control the circumferential deposition thickness distribution.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: July 16, 2002
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6419803
    Abstract: A system and method for manufacturing thin-film structures disposed on a substrate. The thin-film structures have different respective thicknesses that vary along a radius of the substrate. A substrate rotates about an axis of rotation and a source of deposited material is directed at the rotating substrate. A mask having a stepped profile is positioned between the rotating substrate and the source. The stepped mask selectively blocks material emanating from the source from reaching the substrate. Each step of the profile of the mask corresponds to one of the respective thicknesses of the thin-film structures. The radius along which the different respective thicknesses of the film-thin structures vary is measured from the axis of rotation of the rotating substrate.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: July 16, 2002
    Assignee: 4Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6402905
    Abstract: A system and method for controlling a deposition thickness distribution on a substrate includes a motor that rotates the substrate and at least one deposition thickness sensor that senses the deposition thickness on the rotating substrate at two or more radii. At least one actuator varies a shadow of a mask that is disposed over the rotating substrate, wherein the shadow has a surface area that is less than an unmasked surface area of the rotating substrate. A vapor source deposits material on the rotating substrate. A process controller is coupled to the thickness deposition sensor and the at least one actuator. In response to an output of the deposition thickness sensor, the process controller varies the shadow of the mask along a radius of the substrate to control the deposition thickness distribution.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: June 11, 2002
    Assignee: 4 Wave, Inc
    Inventors: David Alan Baldwin, Todd Lanier Hylton
  • Patent number: 6402901
    Abstract: A system and method for simultaneously performing sputter deposition on a plurality of planar substrates. An ion current source generates an ion beam in which ions are directed toward a target. The target is formed from a section of a sphere. Each of the plurality of planar substrates has a deposition surface that is tangent to a surface of the sphere. In addition, a substrate that is a section of a sphere may be used. The deposition thickness across the spherically-shaped substrate is uniform.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: June 11, 2002
    Assignee: 4 Wave, Inc.
    Inventors: David Alan Baldwin, Todd Lanier Hylton