Patents by Inventor Alvin Cheng

Alvin Cheng 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).

  • NANOINJECTION MOLDING
    Publication number: 20180311877
    Abstract: An injection mold insert with hierarchical structures and a method for method of making such injection mold inserts are provided. The method includes imprinting a primary imprint structure on an article and imprinting a secondary imprint structure on the primary imprint structure on the article. The secondary imprint structure includes a plurality of shapes, each of the plurality of shapes being substantially smaller than shapes of the primary imprint structure. The method further includes bonding the article to a substrate, sputter-coating the article with a metal film as an electroforming seed layer, and electroforming the injection mold insert over the article. Finally, the method includes dissolving the article to define the injection mold insert having a negative replica of the primary and secondary imprint structures.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 1, 2018
    Inventors: Mohamed Sultan Mohiddin SAIFULLAH, Siew Ling Karen CHONG, Yee Chong LOKE, Alvin CHENG, Nicholas LEONG
  • Scalable structured data store operations
    Patent number: 9164857
    Abstract: Scalable structured data store operations can include logging a number of detected corrupted records within a scalable structured data store, repairing the number of corrupted records within a number of nodes of the scalable structured data store, and predicting hardware failure based on the logged number of corrupted records.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: October 20, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Matthew P. Houseman, Jun Li, Colin Heng Fai Tsui, Alvin Cheng-Tser Chen, Ajay Dhar
  • SCALABLE STRUCTURED DATA STORE OPERATIONS
    Publication number: 20140215279
    Abstract: Scalable structured data store operations can include logging a number of detected corrupted records within a scalable structured data store, repairing the number of corrupted records within a number of nodes of the scalable structured data store, and predicting hardware failure based on the logged number of corrupted records.
    Type: Application
    Filed: January 30, 2013
    Publication date: July 31, 2014
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Matthew P. Houseman, Jun Li, Colin Heng Fai Tsui, Alvin Cheng-Tser Chen, Ajay Dhar
  • Clock radio
    Patent number: D418135
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: December 28, 1999
    Assignee: Hopestar Electronics Limited
    Inventor: Alvin Cheng