Patents by Inventor Douglas Dean

Douglas Dean 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: 20140159130
    Abstract: An apparatus and method of forming the same including, in one embodiment, a printed circuit board and a semiconductor device coupled to the printed circuit board. The apparatus also includes a decoupling device coupled to the printed circuit board and positioned under the semiconductor device.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 12, 2014
    Applicant: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Jeffrey Demski, Anatoly Feygenson, Douglas Dean Lopata, Jay Norton, John D. Weld
  • Publication number: 20140151795
    Abstract: A semiconductor device and method of forming the same including, in one embodiment, a semiconductor die formed with a plurality of laterally diffused metal oxide semiconductor (“LDMOS”) cells, and a metallic layer electrically coupled to the plurality of LDMOS cells. The semiconductor device also includes a plurality of gate drivers positioned along a periphery of the semiconductor die and electrically coupled to gates of the plurality of LDMOS cells through the metallic layer.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Jeffrey Demski, Anatoly Feygenson, Douglas Dean Lopata, Jay Norton, John D. Weld
  • Publication number: 20140151794
    Abstract: A semiconductor device and method of forming the same including, in one embodiment, a semiconductor die formed with a plurality of laterally diffused metal oxide semiconductor (“LDMOS”) cells. The semiconductor device also includes a redistribution layer electrically coupled to the plurality of LDMOS cells and a plurality of metallic pillars distributed over and electrically coupled to the redistribution layer.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Jeffrey Demski, Anatoly Feygenson, Douglas Dean Lopata, Jay Norton, John D. Weld
  • Publication number: 20140151797
    Abstract: A semiconductor device and method of forming the same including, in one embodiment, a substrate and a plurality of source and drain regions formed as alternating pattern on the substrate. The semiconductor device also includes a plurality of gates formed over the substrate between and parallel to ones of the plurality of source and drain regions. The semiconductor device also includes a first plurality of alternating source and drain metallic strips formed in a first metallic layer above the substrate and parallel to and forming an electrical contact with respective ones of the plurality of source and drain regions.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Jeffrey Demski, Anatoly Feygenson, Douglas Dean Lopata, Jay Norton, John D. Weld
  • Patent number: 8692532
    Abstract: A power converter and method of controlling the same for selected modes of operation. In one embodiment, the power converter includes a first power switch coupled to a source of electrical power and a second power switch coupled to the first power switch and to an output terminal of the power converter. The power converter also includes a controller configured to control an operation of the first and second power switches during selected modes of operation.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: April 8, 2014
    Assignee: Enpirion, Inc.
    Inventors: Douglas Dean Lopata, Ashraf W. Lotfi
  • Publication number: 20140090353
    Abstract: Embodiments of the invention can provide systems and methods for determining a target exhaust temperature for gas turbines. In one embodiment of the disclosure, there is disclosed a method for determining a target exhaust temperature for a gas turbine. The method can include determining a target exhaust temperature based at least in part on a compressor pressure condition; determining a temperature adjustment to the target exhaust temperature based at least in part on steam humidity; and changing the target exhaust temperature based at least in part on the temperature adjustment.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: General Electric Company
    Inventors: Derrick Simons, Douglas Dean, Carey Romoser, Kevin Wilkes, Predrag Popovic, Abhijit Kulkarni
  • Patent number: 8686698
    Abstract: A power converter and method of controlling the same for selected modes of operation. In one embodiment, the power converter includes a first power switch coupled to a source of electrical power and a second power switch coupled to the first power switch and to an output terminal of the power converter. The power converter also includes a controller configured to control an operation of the first and second power switches during selected modes of operation.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: April 1, 2014
    Assignee: Enpirion, Inc.
    Inventors: Douglas Dean Lopata, Ashraf W. Lotfi
  • Patent number: 8633540
    Abstract: An integrated circuit with a transistor advantageously embodied in a laterally diffused metal oxide semiconductor device having a gate located over a channel region recessed into a semiconductor substrate and a method of forming the same. In one embodiment, the transistor includes a source/drain including a lightly or heavily doped region adjacent the channel region, and an oppositely doped well extending under the channel region and a portion of the lightly or heavily doped region of the source/drain. The transistor also includes a channel extension, within the oppositely doped well, under the channel region and extending under a portion of the lightly or heavily doped region of the source/drain.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: January 21, 2014
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, William W. Troutman, Douglas Dean Lopata, Tanya Nigam
  • Publication number: 20130312130
    Abstract: Provided are methods for producing a reprogrammed fibroblast or epithelial cell. The methods include growing a plurality of fibroblasts or epithelial cells in monolayer culture to confluency; and disrupting the monolayer culture to place at least a fraction of the plurality of fibroblasts or epithelial cells into suspension culture under conditions sufficient to form one or more embryoid body-like spheres, wherein the one or more embryoid body-like spheres comprise one or more reprogrammed fibroblasts or epithelial cells that express one or more markers not expressed prior to the disrupting step. Also provided are reprogrammed fibroblasts or epithelial cells produced by the disclosed methods, formulations that include reprogrammed fibroblasts or epithelial cells, methods for using the reprogrammed fibroblasts or epithelial cells, methods for producing chimeric non-human mammals that include one or more sphere-induced Pluripotent Cells (siPS), and chimeric non-human mammals produced thereby.
    Type: Application
    Filed: September 23, 2011
    Publication date: November 21, 2013
    Applicant: UNIVERSITY OF LOUISVILLE
    Inventors: Douglas Dean, Yongqing Liu
  • Publication number: 20130276959
    Abstract: An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventors: Walter Forrest Frantz, Jayant D. Patel, Douglas Dean Maben, Bruce Whitman, Douglas E. Freeman
  • Publication number: 20130269364
    Abstract: Embodiments can provide systems and methods for detecting fuel leaks in gas turbine engines. According to one embodiment, there is disclosed a method for detecting a fuel leak in a gas turbine engine. The method may include adjusting a control valve to correspond with a desired fuel flow. The method may also include determining an actual fuel flow based at least in part on an upstream pressure in a fuel manifold and one or more gas turbine engine parameters. The method may also include comparing the desired fuel flow with the actual fuel flow. Moreover, the method may include determining a difference between the desired fuel flow and the actual fuel flow, wherein the difference indicates a fuel leak.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 17, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Bryan Wesley Romig, Derrick Simons, Douglas Dean
  • Patent number: 8541991
    Abstract: A power converter and method of controlling the same for selected modes of operation. In one embodiment, the power converter includes a first power switch coupled to a source of electrical power and a second power switch coupled to the first power switch and to an output terminal of the power converter. The power converter also includes a controller configured to control an operation of the first and second power switches during selected modes of operation.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: September 24, 2013
    Assignee: Enpirion, Inc.
    Inventors: Douglas Dean Lopata, Ashraf W. Lotfi
  • Publication number: 20130222453
    Abstract: A drop emitting apparatus may include a drop generator having a piezoelectric element and configured to receive a drop firing waveform having a drop firing voltage pulse during a drop ejection period. A poling waveform may be applied to the drop generator during a poling period that occurs before the drop ejection period, the poling waveform having a poling voltage pulse that has a longer duration than that of the drop firing voltage pulse.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 29, 2013
    Applicant: XEROX CORPORATION
    Inventor: Douglas Dean Darling
  • Patent number: 8410769
    Abstract: A power converter and method of controlling the same for selected modes of operation. In one embodiment, the power converter includes a first power switch coupled to a source of electrical power and a second power switch coupled to the first power switch and to an output terminal of the power converter. The power converter also includes a controller configured to control an operation of the first and second power switches during selected modes of operation.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: April 2, 2013
    Assignee: Enpirion, Inc.
    Inventors: Douglas Dean Lopata, Ashraf W. Lotfi
  • Patent number: 8339802
    Abstract: A module having a stacked magnetic device and semiconductor device, and method of forming the same. In one embodiment, the module includes a printed wiring board including a patterned conductor formed on an upper surface thereof. The module also includes a magnetic core mounted on the upper surface of the printed wiring board proximate the patterned conductor and a semiconductor device mounted on an upper surface of the magnetic core.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 25, 2012
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Douglas Dean Lopata, John David Weld, Mathew A. Wilkowski
  • Publication number: 20120306011
    Abstract: An integrated circuit with a transistor advantageously embodied in a laterally diffused metal oxide semiconductor device having a gate located over a channel region recessed into a semiconductor substrate and a method of forming the same. In one embodiment, the transistor includes a source/drain including a lightly or heavily doped region adjacent the channel region, and an oppositely doped well extending under the channel region and a portion of the lightly or heavily doped region of the source/drain. The transistor also includes a channel extension, within the oppositely doped well, under the channel region and extending under a portion of the lightly or heavily doped region of the source/drain.
    Type: Application
    Filed: August 15, 2012
    Publication date: December 6, 2012
    Applicant: ENPIRION, INC.
    Inventors: Ashraf W. Lotfi, William W. Troutman, Douglas Dean Lopata, Tanya Nigam
  • Patent number: 8266793
    Abstract: A module having a stacked magnetic device and semiconductor device, and method of forming the same. In one embodiment, the module includes a printed wiring board including a patterned conductor formed on an upper surface thereof. The module also includes a magnetic core mounted on the upper surface of the printed wiring board proximate the patterned conductor and a semiconductor device mounted on an upper surface of the magnetic core.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: September 18, 2012
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Douglas Dean Lopata, John David Weld, Mathew A. Wilkowski
  • Patent number: 8253195
    Abstract: An integrated circuit with a transistor advantageously embodied in a laterally diffused metal oxide semiconductor device having a gate located over a channel region recessed into a semiconductor substrate and a method of forming the same. In one embodiment, the transistor includes a source/drain including a lightly or heavily doped region adjacent the channel region, and an oppositely doped well extending under the channel region and a portion of the lightly or heavily doped region of the source/drain. The transistor also includes a channel extension, within the oppositely doped well, under the channel region and extending under a portion of the lightly or heavily doped region of the source/drain.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: August 28, 2012
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, William W. Troutman, Douglas Dean Lopata, Tanya Nigam
  • Patent number: 8253196
    Abstract: An integrated circuit with a transistor advantageously embodied in a laterally diffused metal oxide semiconductor device having a gate located over a channel region recessed into a semiconductor substrate and a method of forming the same. In one embodiment, the transistor includes a source/drain including a lightly or heavily doped region adjacent the channel region, and an oppositely doped well extending under the channel region and a portion of the lightly or heavily doped region of the source/drain. The transistor also includes a channel extension, within the oppositely doped well, under the channel region and extending under a portion of the lightly or heavily doped region of the source/drain.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: August 28, 2012
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, William W. Troutman, Douglas Dean Lopata, Tanya Nigam
  • Patent number: 8253197
    Abstract: An integrated circuit with a transistor advantageously embodied in a laterally diffused metal oxide semiconductor device having a gate located over a channel region recessed into a semiconductor substrate and a method of forming the same. In one embodiment, the transistor includes a source/drain including a lightly or heavily doped region adjacent the channel region, and an oppositely doped well extending under the channel region and a portion of the lightly or heavily doped region of the source/drain. The transistor also includes a channel extension, within the oppositely doped well, under the channel region and extending under a portion of the lightly or heavily doped region of the source/drain.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: August 28, 2012
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, William W. Troutman, Douglas Dean Lopata, Tanya Nigam