Patents Assigned to Moxtek, Inc.
  • XRF analyzer communication
    Patent number: 9683953
    Abstract: An x-ray fluorescence (XRF) analysis system 10 can include an XRF analyzer 20 which can communicate wirelessly with other devices. The system 10 can also include remote-processor software configured to be loaded onto a handheld electronic device 23 and/or remote-computer software configured to be loaded onto a remote-computer 28. The XRF analyzer 20 can include a microphone 18 and/or an output device 31 to allow a user 19 to communicate conveniently with the XRF analyzer 20.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: June 20, 2017
    Assignee: Moxtek, Inc.
    Inventors: Vincent Floyd Jones, Daniel N. Paas, Brad Harris, Bill Hansen
  • Broadband, selectively-absorptive wire grid polarizer
    Patent number: 9632224
    Abstract: The invention includes a selectively-absorptive wire grid polarizer (WGP) comprising an array of parallel, elongated rods located over a surface of a transparent substrate with gaps between adjacent rods. Each of the rods can include a reflective wire and two absorptive ribs. The reflective wire can be sandwiched between the two absorptive ribs and the substrate or the two absorptive ribs can be sandwiched between the reflective wire and the substrate. Each of the two absorptive ribs can comprise a different material. Use of multiple absorptive ribs within each rod can increase the effective useful bandwidth of light for selectively absorbing one polarization.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 25, 2017
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Mathew Free
  • Wire grid polarizer with side region
    Patent number: 9632223
    Abstract: Structures and methods of making wire grid polarizers having multiple regions, including side bars, strips, and/or side ribs along sides of a central region. The central region can include a single region or multiple regions. Each region can have a different function for improving polarizer performance. The various regions can support each other for improved wire grid polarizer durability.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: April 25, 2017
    Assignee: Moxtek, Inc.
    Inventors: Dean Probst, Qihong Wu, Eric Gardner, Mark Alan Davis
  • Fine pitch wire grid polarizer
    Patent number: 9523805
    Abstract: A wire grid polarizer can have a repeated pattern of groups of parallel elongated wires disposed over a substrate. Each group of wires can comprise at least three wires. At least one wire at an interior of each group can be taller than outermost wires of each group. The wires can be a byproduct of an etch reaction.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: December 20, 2016
    Assignee: Moxtek, Inc.
    Inventor: Mark Davis
  • Corrosion-resistant, strong x-ray window
    Patent number: 9502206
    Abstract: The invention is an x-ray window with a stack of thin film layers including aluminum layer(s), corrosion-barrier layer(s), and/or polymer layer(s). Aluminum layer(s) can provide improved gas impermeability. Polymer layer(s) can increase structural strength. The x-ray window can be substantially transmissive to x-rays but also substantially block visible light and infrared light. The x-ray window can have minimal deflection.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: November 22, 2016
    Assignees: Brigham Young University, Moxtek, Inc.
    Inventors: Mallorie Harker, Steven D. Liddiard, Jonathan Abbott, Robert Davis, Richard Vanfleet, Lei Pei
  • Optical particle analysis
    Patent number: 9448156
    Abstract: A system and method for determining particle size, shape, and/or quantity. The particle can alter the polarization state of two oppositely-polarized light beams, thus allowing the light beams to interfere with each other. An interference pattern from interference of the two light beams can be captured by a CCD. The interference pattern can be analyzed to determine size, shape, and/or quantity.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: September 20, 2016
    Assignee: Moxtek, Inc.
    Inventor: Faris Modawar
  • Polarizer with wire pair over rib
    Patent number: 9354374
    Abstract: Wire grid polarizers, and methods of making wire grid polarizers, including an array of parallel, elongated nano-structures disposed over a surface of a substrate. Each of the nano-structures can include a first rib disposed over a surface of a substrate and a pair of parallel, elongated wires, each laterally oriented with respect to one another, and disposed over the first rib. The wire grid polarizers can be durable with high transmission of one polarization of light, high contrast, and/or small pitch. The wire grid polarizers can also have high absorption or high reflection of an opposite polarization of light.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: May 31, 2016
    Assignee: Moxtek, Inc.
    Inventors: Bin Wang, Ted Wangensteen, Rumyana Petrova, Mike Black, Steven Marks, Dean Probst, Mark Alan Davis
  • Grid voltage generation for x-ray tube
    Patent number: 9351387
    Abstract: An x-ray source for improved electron beam control, a smaller electron beam spot size, and a smaller x-ray spot size with reduced power supply size and weight. A method for improved electron beam control, a smaller electron beam spot size, and a smaller x-ray spot size with reduced power supply size and weight. Grid(s) may be used in an x-ray tube for improved electron beam control, a smaller electron beam spot size, and a smaller x-ray spot size. Control circuitry for the grid(s) can be disposed in electrically insulative potting. Light may be used to provide power and control signals to the control circuitry.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: May 24, 2016
    Assignee: Moxtek, Inc.
    Inventor: Dongbing Wang
  • Polarizer with variable inter-wire distance
    Patent number: 9348076
    Abstract: A wire grid polarizer comprising an array of parallel, elongated nano-structures disposed over a surface of a substrate. Each of the nano-structures can include a pair of parallel, elongated wires (or top ribs), each oriented laterally with respect to one another. There can be a first gap disposed between the pair of wires (or top ribs). Each of the nano-structures can be separated from an adjacent nano-structure by a second gap disposed between adjacent nanostructures, and thus between adjacent pairs of wires. A first gap width of the first gap can be different than a second gap width of the second gap. Also included are methods of making wire grid polarizers.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: May 24, 2016
    Assignee: Moxtek, Inc.
    Inventors: Bin Wang, Ted Wangensteen, Rumyana Petrova, Mike Black, Steven Marks, Dean Probst
  • Reinforced polymer x-ray window
    Patent number: 9305735
    Abstract: An x-ray window comprising a polymer and carbon nanotubes and/or graphene. The carbon nanotubes and/or graphene can be embedded in the polymer. Multiple layers of polymer, carbon nanotubes, and/or graphene may be used. The polymer with carbon nanotubes and/or graphene can be used as an x-ray window support structure and/or thin film.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: April 5, 2016
    Assignees: Brigham Young University, Moxtek, Inc.
    Inventors: Steven D. Liddiard, Charles R. Jensen, Michael Zappe, Keith W. Decker, Robert C. Davis, Lei Pei, Richard R. Vanfleet
  • Modular x-ray source
    Patent number: 9282622
    Abstract: A modular x-ray source in which the x-ray tube is removably attached to a case and power supply by a removable cap.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: March 8, 2016
    Assignee: Moxtek, Inc.
    Inventors: Eric Draper, Jon Barron, Vince Jones, Eric Miller, Dustin Peterson
  • Dual tube support for electron emitter
    Patent number: 9240303
    Abstract: An x-ray tube including dual, electrically-conductive emitter tubes to support and provide electrical power to an electron emitter. A method of evacuating and sealing the x-ray tube by drawing a vacuum on the x-ray tube through an inner tube of dual emitter tubes, then pinching the inner tube to seal off the enclosure and to maintain a vacuum therein.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: January 19, 2016
    Assignee: Moxtek, Inc.
    Inventors: Brian Barnum, Dustin Peterson, Eric Miller, Eric Draper, Jon Barron
  • Tiltable or deflectable anode x-ray tube
    Patent number: 9184020
    Abstract: A x-ray tube comprising an anode sealed to a flexible coupling. The flexible coupling can allow the anode to deflect or tilt in various directions to allow an electron beam to impinge upon various selected regions of an anode target. A method of utilizing different regions of an x-ray tube target by tilting or deflecting an x-ray tube anode to cause an electron beam to impinge on a selected region of the target.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: November 10, 2015
    Assignee: Moxtek, Inc.
    Inventor: Todd S. Parker
  • X-ray tube and receiver inside mouth
    Patent number: 9173623
    Abstract: A method and a device for low x-ray radiation dosage while taking x-ray images of a patient's teeth is disclosed. The method includes use of an x-ray source and receiver positioned at least partially inside the patient's mouth. The device includes an x-ray source and receiver attached together by a bite holder and configured to both be disposed at least partially inside the patient's mouth across a tooth while taking x-ray images of a patient's tooth.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: November 3, 2015
    Assignees: Moxtek, Inc.
    Inventors: Samuel Soonho Lee, Victor Armando Tirado, David S. Crawford
  • Multi-target X-ray tube with stationary electron beam position
    Patent number: 9177755
    Abstract: A transmission x-ray tube comprising an end window hermetically sealed to a flexible coupling. The flexible coupling can allow the window to shift or tilt in one direction or another direction to allow an electron beam to impinge upon one region of the window or another region of the window. A method of utilizing different regions of an x-ray tube target by tilting an x-ray tube window at an acute angle with respect to an electron beam axis to cause an electron beam to impinge on a selected region of the window and tilting the window in a different direction to allow the electron beam to impinge on a different selected region of the window.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: November 3, 2015
    Assignee: Moxtek, Inc.
    Inventors: Todd S. Parker, Steven D. Liddiard, Dave Reynolds
  • High strength carbon fiber composite wafers for microfabrication
    Patent number: 9174412
    Abstract: A high strength carbon fiber composite (CFC) wafer, and method of making such wafer, with low surface roughness comprising at least one sheet of CFC including carbon fibers embedded in a matrix. The wafer can have a thickness of between 10-500 micrometers. The wafer can have a root mean square surface roughness Rq, on at least one side, of less than 300 nm in an area of 100 micrometers by 100 micrometers and less than 500 nm along a line of 2 millimeter length. The wafer may be cut to form x-ray window support structures, MEMS, or other micrometer sized structures.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: November 3, 2015
    Assignees: Brigham Young University, Moxtek, Inc.
    Inventors: Robert C. Davis, Richard Vanfleet, Kyle Zufeldt, Andrew L. Davis, Steven D. Liddiard
  • Transformer network
    Patent number: 9072155
    Abstract: A transformer network circuit utilizing multiple smaller transformer cores, instead of a single, relatively larger core, for transferring electrical power while maintaining a smaller overall core mass.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: June 30, 2015
    Assignee: Moxtek, Inc.
    Inventor: Dongbing Wang
  • Grid voltage generation for x-ray tube
    Patent number: 9072154
    Abstract: An x-ray source for improved electron beam control, a smaller electron beam spot size, and a smaller x-ray spot size with reduced power supply size and weight. A method for improved electron beam control, a smaller electron beam spot size, and a smaller x-ray spot size with reduced power supply size and weight. Grid(s) may be used in an x-ray tube for improved electron beam control, a smaller electron beam spot size, and a smaller x-ray spot size. Control circuitry for the grid(s) can be disposed in electrically insulative potting. Light may be used to provide power and control signals to the control circuitry.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: June 30, 2015
    Assignee: MOXTEK, INC.
    Inventor: Dongbing Wang
  • Inductor switching LC power circuit
    Patent number: 8995620
    Abstract: An electrical circuit for alternating current generation comprising a direct current control box, a first inductor, a second inductor, a first capacitor, and dual load connections. The direct current control box can alternately provide positive direct current to the first inductor then negative direct current to the second inductor. A second end of each inductor can be electrically connected together and electrically connected to a first load connection. A common connection on the control box can be electrically connected to a second load connection. The first load connection and the second load connection can be configured to be electrically connected across a load. A first capacitor can be electrically connected between the first load connection and the second load connection and configured to be electrically connected in series or parallel parallel with the load.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: March 31, 2015
    Assignee: Moxtek, Inc.
    Inventor: Dongbing Wang
  • Compact X-ray source
    Patent number: 8995621
    Abstract: A compact x-ray source can include a circuit (10) providing reliable voltage isolation between low and high voltage sides (21, 23) of the circuit while allowing AC power transfer between the low and high voltage sides of the circuit to an x-ray tube electron emitter (43). Capacitors (11, 12) can provide the isolation between the low and high voltage sides of the circuit. The x-ray source (110) can utilize capacitors of a high voltage generator (67) to provide the voltage isolation. A compact x-ray source (110) can comprise a single transformer core (101) to transfer alternating current from two alternating current sources (104a, 104b) to an electron emitter (43) and a high voltage generator (107). A compact x-ray source (120) can comprise a high voltage sensing resistor (R1) disposed on a cylinder (41) of an x-ray tube (40).
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: March 31, 2015
    Assignee: Moxtek, Inc.
    Inventors: Dongbing Wang, Dave Reynolds