Patents by Inventor Dane Christensen

Dane Christensen 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: 10378805
    Abstract: Model predictive control methods are disclosed which provide, among other things, efficient strategies for controlling heat-transfer to a fluid.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 13, 2019
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Xin Jin, Jeff Maguire, Dane Christensen
  • Publication number: 20150253051
    Abstract: Model predictive control methods are disclosed which provide, among other things, efficient strategies for controlling heat-transfer to a fluid.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 10, 2015
    Inventors: Xin JIN, Jeff MAGUIRE, Dane CHRISTENSEN
  • Patent number: 7785415
    Abstract: Systems and methods for local synthesis of silicon nanowires and carbon nanotubes, as well as electric field assisted self-assembly of silicon nanowires and carbon nanotubes, are described. By employing localized heating in the growth of the nanowires or nanotubes, the structures can be synthesized on a device in a room temperature chamber without the device being subjected to overall heating. The method is localized and selective, and provides for a suspended microstructure to achieve the thermal requirement for vapor deposition synthesis, while the remainder of the chip or substrate remains at room temperature. Furthermore, by employing electric field assisted self-assembly techniques according to the present invention, it is not necessary to grow the nanotubes and nanowires and separately connect them to a device. Instead, the present invention provides for self-assembly of the nanotubes and nanowires on the devices themselves, thus providing for nano- to micro-integration.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: August 31, 2010
    Assignee: The Regents of the University of California
    Inventors: Liwei Lin, Ongi Englander, Dane Christensen
  • Publication number: 20100181648
    Abstract: Systems and methods for local synthesis of silicon nanowires and carbon nanotubes, as well as electric field assisted self-assembly of silicon nanowires and carbon nanotubes, are described. By employing localized heating in the growth of the nanowires or nanotubes, the structures can be synthesized on a device in a room temperature chamber without the device being subjected to overall heating. The method is localized and selective, and provides for a suspended microstructure to achieve the thermal requirement for vapor deposition synthesis, while the remainder of the chip or substrate remains at room temperature. Furthermore, by employing electric field assisted self-assembly techniques according to the present invention, it is not necessary to grow the nanotubes and nanowires and separately connect them to a device. Instead, the present invention provides for self-assembly of the nanotubes and nanowires on the devices themselves, thus providing for nano- to micro-integration.
    Type: Application
    Filed: November 14, 2007
    Publication date: July 22, 2010
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Liwei Lin, Ongi Englander, Dane Christensen
  • Patent number: 7311776
    Abstract: Systems and methods for local synthesis of silicon nanowires and carbon nanotubes, as well as electric field assisted self-assembly of silicon nanowires and carbon nanotubes, are described. By employing localized heating in the growth of the nanowires or nanotubes, the structures can be synthesized on a device in a room temperature chamber without the device being subjected to overall heating. The method is localized and selective, and provides for a suspended microstructure to achieve the thermal requirement for vapor deposition synthesis, while the remainder of the chip or substrate remains at room temperature. Furthermore, by employing electric field assisted self-assembly techniques according to the present invention, it is not necessary to grow the nanotubes and nanowires and separately connect them to a device. Instead, the present invention provides for self-assembly of the nanotubes and nanowires on the devices themselves, thus providing for nano-to micro-integration.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: December 25, 2007
    Assignee: The Regents of the University of California
    Inventors: Liwei Lin, Ongi Englander, Dane Christensen
  • Publication number: 20050253220
    Abstract: Systems and methods for local synthesis of silicon nanowires and carbon nanotubes, as well as electric field assisted self-assembly of silicon nanowires and carbon nanotubes, are described. By employing localized heating in the growth of the nanowires or nanotubes, the structures can be synthesized on a device in a room temperature chamber without the device being subjected to overall heating. The method is localized and selective, and provides for a suspended microstructure to achieve the thermal requirement for vapor deposition synthesis, while the remainder of the chip or substrate remains at room temperature. Furthermore, by employing electric field assisted self-assembly techniques according to the present invention, it is not necessary to grow the nanotubes and nanowires and separately connect them to a device. Instead, the present invention provides for self-assembly of the nanotubes and nanowires on the devices themselves, thus providing for nano- to micro-integration.
    Type: Application
    Filed: December 29, 2004
    Publication date: November 17, 2005
    Inventors: Liwei Lin, Ongi Englander, Dane Christensen
  • Patent number: 6917010
    Abstract: The present invention includes a method for brazing of two objects or heat treatment of one object. First, object or objects to be treated are selected and initial conditions establishing a relative geometry and material characteristics are determined. Then, a first design of an optical system for directing heat energy onto the object or objects is determined. The initial conditions and first design of the optical system are then input into a optical ray-tracing computer program. The program is then run to produce a representative output of the heat energy input distribution to the object or objects. The geometry of the object or objects, material characteristics, and optical system design are then adjusted until an desired heat input is determined.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: July 12, 2005
    Assignee: The Regents of the University of California
    Inventors: John O. Milewski, Vivek R. Daveā€², Dane Christensen, Robert W. Carpenter, II
  • Publication number: 20030201252
    Abstract: The present invention includes a method for brazing of two objects or heat treatment of one object. First, object or objects to be treated are selected and initial conditions establishing a relative geometry and material characteristics are determined. Then, a first design of an optical system for directing heat energy onto the object or objects is determined. The initial conditions and first design of the optical system are then input into a optical ray-tracing computer program. The program is then run to produce a representative output of the heat energy input distribution to the object or objects. The geometry of the object or objects, material characteristics, and optical system design are then adjusted until an desired heat input is determined.
    Type: Application
    Filed: April 29, 2003
    Publication date: October 30, 2003
    Inventors: John O. Milewski, Vivek R. Dave', Dane Christensen, Robert W. Carpenter
  • Publication number: 20020139781
    Abstract: There has been invented a method and apparatus for heat treating or brazing joints in metals and ceramics using an optical concentrator (reflecting waveguide) to reflect energy from infrared energy heat sources, in a pattern which will provide precisely tailored illumination, heating, melting of filler and fusion of the area to be heat treated or the joint to be formed. CAD optical ray tracing software is used to custom design the reflecting waveguides for directing the energy as needed. With the invention, shorter, reduced energy heat cycles can be used to produce reliable accurate brazes, including brazes to join small diameter tubes. No furnace is necessary because localized small area brazing can be done in situ with the invention method and apparatus. Various heat sources can be used to braze various geometries, including very small diameter tubes.
    Type: Application
    Filed: February 1, 2001
    Publication date: October 3, 2002
    Inventors: John O. Milewski, Vivek R. Dave, Dane Christensen, Robert W. Carpenter