Patents by Inventor Hsi-Jen J. Yeh

Hsi-Jen J. Yeh 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: 20100075463
    Abstract: A method and apparatus for assembling microstructures onto a substrate through fluid transport. The microstructures being shaped blocks self-align into recessed regions located on a substrate such that the microstructure becomes integral with the substrate. The improved method includes a step of transferring the shaped blocks into a fluid to create a slurry. Such slurry is then dispensed evenly or circulated over the top surface of a substrate having recessed regions thereon. The microstructure via the shape and fluid tumbles onto the surface of the substrate, self-aligns, and engages into a recessed region.
    Type: Application
    Filed: June 6, 2007
    Publication date: March 25, 2010
    Applicant: The Regents of The University of California
    Inventors: John Stephen Smith, Hsi-Jen J. Yeh, Mark A. Hadley, Ashish K. Verma
  • Patent number: 5904545
    Abstract: Apparatus for assembling microstructures onto a substrate through fluid transport. The apparatus includes a vessel that contains the substrate, a fluid, and microstructures. The substrate has at least one recessed region thereon. The microstructures being shaped blocks self-align into the recessed regions located on the substrate such that the microstructure becomes integral with the substrate. The apparatus also includes a pump that circulates the microstructures within the vessel at a rate where at least one of the microstructures is disposed into the recessed region.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 18, 1999
    Assignee: The Regents of the University of California
    Inventors: John Stephen Smith, Hsi-Jen J. Yeh, Mark A. Hadley, Ashish K. Verma
  • Patent number: 5824186
    Abstract: A method and apparatus for assembling microstructures onto a substrate through fluid transport. The microstructures being shaped blocks self-align into recessed regions located on a substrate such that the microstructure becomes integral with the substrate. The improved method includes a step of transferring the shaped blocks into a fluid to create a slurry. Such slurry is then dispensed evenly or circulated over the top surface of a substrate having recessed regions thereon. The microstructure via the shape and fluid tumbles onto the surface of the substrate, self-aligns, and engages into a recessed region.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 20, 1998
    Assignee: The Regents of the University of California
    Inventors: John Stephen Smith, Hsi-Jen J. Yeh
  • Patent number: 5783856
    Abstract: A method for assembling microstructures onto a substrate through fluid transport. The microstructures being shaped blocks self-align into recessed regions located on a substrate such that the microstructure becomes integral with the substrate 20, 70, 90, 120, 200. The improved method includes a step of transferring the shaped blocks into a fluid to create a slurry. Such slurry is then poured evenly over the top surface of a substrate having recessed regions thereon. The microstructure via the shape and fluid tumbles onto the surface of the substrate, self-aligns, and engages into a recessed region.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: July 21, 1998
    Assignee: The Regents of the University of California
    Inventors: John Stephen Smith, Hsi-Jen J. Yeh
  • Patent number: 5625617
    Abstract: Near-field optical apparatus according to the invention contains a novel semiconductor laser photon source. The source is capable of providing substantially higher photon flux than prior art near field sources, potentially facilitating read-out rates in the megahertz range in exemplary near-field data storage and retrieval apparatus. The novel source comprises a non-uniform laser emission face, with the emission face configured such that at least 50% of the total radiation emission is from a small (first) region of the emission face, of width less than .lambda..sub.s /2, where .lambda..sub.s is the emission wavelength of the laser. In an exemplary embodiment, a multilayer coating is provided on the emission face, such that radiation emission from the face is relatively low. A recess is formed in the coating such that substantial radiation emission from the recess occurs. The recess constitutes the first region.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: April 29, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Leslie C. Hopkins, Cherry A. Murray, Afshin Partovi, David R. Peale, Hsi-jen J. Yeh, George J. Zydzik
  • Patent number: 5545291
    Abstract: A method for assembling microstructures onto a substrate through fluid transport. The microstructures being shaped blocks self-align into recessed regions located on a substrate such that the microstructure becomes integral with the substrate 20, 70, 90, 120, 200. The improved method includes a step of transferring the shaped blocks into a fluid to create a slurry. Such slurry is then poured evenly over the top surface of a substrate having recessed regions thereon. The microstructure via the shape and fluid tumbles onto the surface of the substrate, self-aligns, and engages into a recessed region.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: August 13, 1996
    Assignee: The Regents of the University of California
    Inventors: John S. Smith, Hsi-Jen J. Yeh