Patents by Inventor David D Li

David D Li 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: 20240074177
    Abstract: Microelectronic devices include a region with a tiered stack that includes insulative, conductive, and non-conductive structures arranged in tiers. The insulative structures vertically alternate with both the conductive and the non-conductive structures. Each of the conductive structures is vertically spaced from another of the conductive structures by at least one of the non-conductive structures and at least two of the insulative structures. A composition of the non-conductive structures differs from a composition of the insulative structures. In methods of fabrication, a precursor stack is formed to include the insulative structures vertically alternating with first and second non-conductive structures. In a region of the precursor stack, the first non-conductive structures are removed, forming voids between multi-structure tier groups. Conductive structures are formed in the voids. Electronic systems are also disclosed.
    Type: Application
    Filed: August 24, 2022
    Publication date: February 29, 2024
    Inventors: David H. Wells, Justin D. Shepherdson, Swapnil A. Lengade, Collin Howder, Dheeraj Kumar, Andrew L. Li
  • Patent number: 6609050
    Abstract: A computer-based warranty administration system provides vehicle-specific service. The system includes a dialog manager for collecting service information regarding a vehicle from a user. The system also has an artificial intelligence based reasoning module for analyzing the service information to determine a diagnosis. The system further includes a repair processing module for administering warranty-specific service based on the diagnosis and the service information.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: August 19, 2003
    Assignee: DaimlerChrysler Corporation
    Inventor: David D Li
  • Publication number: 20020072808
    Abstract: A computer-based warranty administration system provides vehicle-specific service. The system includes a dialog manager for collecting service information regarding a vehicle from a user. The system also has an artificial intelligence based reasoning module for analyzing the service information to determine a diagnosis. The system further includes a repair processing module for administering warranty-specific service based on the diagnosis and the service information.
    Type: Application
    Filed: January 20, 2000
    Publication date: June 13, 2002
    Inventor: David D. Li
  • Patent number: 6100846
    Abstract: An antenna, particularly adapted to produce a scanning beam usable for radar and communication applications, includes a frame. Attached to the frame is a reciprocating device that is operatively connected to a reflecting conductor. Spaced by a uniform gap from the conductor is an elongated dielectric waveguide carried on a conductive layer of a laminate supported by the frame on an input side of the antenna. The waveguide covers a set of spaced apart apertures in the laminate conductive layer. Joined to the laminate conductive layer on an opposite output side of the antenna is a dielectric layer. On an outer surface of the laminate dielectric layer is a set of spaced apart conductive patches that align with the laminate conductive layer apertures. During operation of the antennas an electromagnetic wave is transmitted through the waveguide to pass through the laminate apertures and energizes the patches.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: August 8, 2000
    Assignee: Epsilon Lambda Electronics Corp.
    Inventors: David D. Li, Xiao-Dong Wu, Kenneth D. Gilliam, Robert M. Knox