Patents by Inventor Winston Kong Chan

Winston Kong Chan 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: 8675704
    Abstract: The present disclosure relates to a diode laser and a method for producing the same. In one embodiment, the diode laser, comprises a passive pedestal layer structure, an active ridge layer structure positioned over the passive pedestal layer structure, a p-contact contacting a top side of the active ridge layer structure, a first n-contact disposed on a first side of the active ridge layer structure, a second n-contact disposed on a second side of the active ridge layer structure and, an n-final-metal layer connecting the first n-contact metal and the second n-contact metal, wherein the n-final-metal layer is continuous over the active ridge layer structure.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: March 18, 2014
    Assignee: SRI International
    Inventors: Joseph Hy Abeles, Zane Alan Shellenbarger, Winston Kong Chan, Alan Michael Braun
  • Publication number: 20110274130
    Abstract: The present disclosure relates to a diode laser and a method for producing the same. In one embodiment, the diode laser, comprises a passive pedestal layer structure, an active ridge layer structure positioned over the passive pedestal layer structure, a p-contact contacting a top side of the active ridge layer structure, a first n-contact disposed on a first side of the active ridge layer structure, a second n-contact disposed on a second side of the active ridge layer structure and, an n-final-metal layer connecting the first n-contact metal and the second n-contact metal, wherein the n-final-metal layer is continuous over the active ridge layer structure.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 10, 2011
    Inventors: Joseph Hy Abeles, Zane Alan Shellenbarger, Winston Kong Chan, Alan Michael Braun
  • Publication number: 20110168236
    Abstract: A luminescent solar concentrator (LSC) for receiving electromagnetic radiation of at least a first wavelength is disclosed. The LSC includes a core layer. A lower clad layer substantially underlies the core layer. At least one photovoltaic (PV) cell is partially embedded in at least one of the core layer and the lower clad layer. At least one dye layer substantially overlies the core layer. The at least one dye layer has embedded therein at least one absorption dipole and at least one emission dipole, the at least one emission dipole being coupled to the at least one absorption dipole.
    Type: Application
    Filed: May 21, 2010
    Publication date: July 14, 2011
    Inventors: Winston Kong Chan, Michael G. Kane
  • Patent number: 7852163
    Abstract: A chip scale atomic clock is disclosed that provides a low power atomic time/frequency reference that employs direct RF-interrogation on an end-state transition.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: December 14, 2010
    Assignee: Sarnoff Corporation
    Inventors: Alan Michael Braun, Joseph Hy Abeles, Winston Kong Chan, Martin Kwakernaak, Timothy James Davis
  • Patent number: 7773840
    Abstract: A method of coupling a waveguide to a multi-layered active device structure on a substrate is described. The method includes forming a junction area by etching the active device structure to form a sloped etch profile with respect to the substrate, aligning multiple layers of the multi-layered active device structure via an etch stop adjacent the multi-layered active device structure, and depositing the waveguide over the etched active device structure, wherein a sloped active passive junction is formed at the junction area that reduces residual interface reflection in a resulting coupled device. Also described is a method for removing at least one laser layer in a sloped junction region forming passive amorphous silicon waveguides. This includes depositing a SiN layer for use as an etch mask, patterning a photoresist mask, patterning the SiN layer by reactive ion etching, stripping the photoresist mask, and etching the at least one laser layer.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: August 10, 2010
    Assignee: Novatronix Corporation
    Inventors: Martin H. Kwakernaak, Winston Kong Chan, David Capewell, Hooman Mohseni
  • Publication number: 20090152533
    Abstract: The present disclosure relates to increasing the external efficiency of light emitting diodes, and specifically to increasing the outcoupling of light from an organic light emitting diode utilizing a diffraction grating.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 18, 2009
    Inventors: Winston Kong Chan, Viktor B. Khalfin
  • Publication number: 20090066430
    Abstract: A chip scale atomic clock is disclosed that provides a low power atomic time/frequency reference that employs direct RF-interrogation on an end-state transition.
    Type: Application
    Filed: November 19, 2008
    Publication date: March 12, 2009
    Inventors: Alan Michael Braun, Joseph Hy Abeles, Winston Kong Chan, Martin Kwakernaak, Timothy James Davis
  • Patent number: 7468637
    Abstract: A chip scale atomic clock is disclosed that provides a low power atomic time/frequency reference that employs direct RF-interrogation on an end-state transition.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: December 23, 2008
    Assignee: Sarnoff Corporation
    Inventors: Alan Michael Braun, Joseph Hy Abeles, Winston Kong Chan, Martin Kwakernaak, Timothy James Davis
  • Publication number: 20070247241
    Abstract: A chip scale atomic clock is disclosed that provides a low power atomic time/frequency reference that employs direct RF-interrogation on an end-state transition.
    Type: Application
    Filed: April 18, 2007
    Publication date: October 25, 2007
    Applicant: SARNOFF CORPORATION
    Inventors: Alan Michael Braun, Joseph Hy Abeles, Winston Kong Chan, Martin Kwakernaak, Timothy James Davis
  • Patent number: 7026641
    Abstract: A method of fabricating a tunable quantum dot apparatus, comprising: forming multi-quantum wells sandwiched substantially between at least two barrier layers; spin coating a non-continuous mask onto at least one of said barrier layers; forming a gate material onto the mask, wherein the non-continuity of the mask substantially prevents formation of a continuous gate material layer; lifting off at least a portion of the gate material; self isolating the gate material; and, forming a top contact onto at least a portion of said barrier layers
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: April 11, 2006
    Assignee: Sarnoff Corporation
    Inventors: Hooman Mohseni, Winston Kong Chan
  • Patent number: 6943892
    Abstract: An instrument including a scannable mirror employs multimode optical fibers and an optical coupler. Modal dispersion, e.g., from the multimode optical fiber, is reduced by a method employing deconvolution. The scannable mirror may employ a mirror movable in an optical waveguide or an optical fiber wound on an expandable core.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: September 13, 2005
    Assignee: Sarnoff Corporation
    Inventor: Winston Kong Chan
  • Patent number: 6836597
    Abstract: A scannable mirror employs a mirror movable in an optical waveguide. The optical waveguide may be fluid filled and the mirror may be moved by an electromagnetic or electrostatic motor.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: December 28, 2004
    Assignee: Sarnoff Corporation
    Inventor: Winston Kong Chan
  • Publication number: 20040256612
    Abstract: A method of fabricating a tunable quantum dot apparatus, comprising: forming multi-quantum wells sandwiched substantially between at least two barrier layers; spin coating a non-continuous mask onto at least one of said barrier layers; forming a gate material onto the mask, wherein the non-continuity of the mask substantially prevents formation of a continuous gate material layer; lifting off at least a portion of the gate material; self isolating the gate material; and, forming a top contact onto at least a portion of said barrier layers
    Type: Application
    Filed: August 15, 2003
    Publication date: December 23, 2004
    Inventors: Hooman Mohseni, Winston Kong Chan
  • Publication number: 20040151436
    Abstract: A scannable mirror employs a mirror movable in an optical waveguide. The optical waveguide may be fluid filled and the mirror may be moved by an electromagnetic or electrostatic motor.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventor: Winston Kong Chan
  • Publication number: 20040150830
    Abstract: An instrument including a scannable mirror employs multimode optical fibers and an optical coupler. Modal dispersion, e.g., from the multimode optical fiber, is reduced by a method employing deconvolution. The scannable mirror may employ a mirror movable in an optical waveguide or an optical fiber wound on an expandable core.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventor: Winston Kong Chan