Patents by Inventor Ann Yuhui Yun

Ann Yuhui Yun 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: 9740313
    Abstract: Systems, methods, and devices for monitoring use of a tip of a stylus, determining an amount of wear of or life remaining in the tip, and notifying a user when to replace the tip are disclosed. The tip should be replaced to avoid an abrasive material of the tip from being exposed and contacting a touch screen or other surface of a computing device to avoid scratching or otherwise damaging the touch screen or other surface of the computing device. The computing device or the stylus device may perform one or more of the monitoring, determining, or prompting steps.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: August 22, 2017
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Kishore Sundara-Rajan, Zachary Lawrence Brand, Piotr Pawel Blaszczak, Ann Yuhui Yun, Timothy Michael Vanderet, Miguel Angel Morales
  • Patent number: 9612671
    Abstract: A removable stylus tip for use with an active stylus. The tip is capable of exchanging electrical communications with the touchscreen of a computing device. The tip includes a conductive core to transmit signals between the stylus body and a cone-shaped end of the stylus core. The cone-shaped end is covered with a coating to protect the tip and the touchscreen device. The coating is a composite material configured to allow electrical signals to pass through the material as well as to provide mechanical protection to components of the tip and touchscreen.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: April 4, 2017
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Piotr Pawel Blaszczak, Timothy Michael Vanderet, Ann Yuhui Yun, Kam Sheng Leang, Kishore Sundara-Rajan, Miguel Angel Morales
  • Patent number: 9244543
    Abstract: Systems, methods, and devices for monitoring use of a tip of a stylus, determining an amount of wear of or life remaining in the tip, and notifying a user when to replace the tip are disclosed. The tip should be replaced to avoid an abrasive material of the tip from being exposed and contacting a touch screen or other surface of a computing device to avoid scratching or otherwise damaging the touch screen or other surface of the computing device. The computing device or the stylus device may perform one or more of the monitoring, determining, or prompting steps.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: January 26, 2016
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Kishore Sundara-Rajan, Zachary Lawrence Brand, Piotr Pawel Blaszczak, Ann Yuhui Yun, Timothy Michael Vanderet, Miguel Angel Morales