Patents by Inventor Yoona MIN

Yoona MIN 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).

  • Toner level determination and notification
    Patent number: 11156939
    Abstract: An image forming apparatus and method for determining a toner level and providing a notification are provided. The method of operating an image forming apparatus includes counting a number of times a lower toner hopper receives toner from an in-situ refillable upper toner hopper, calculating an estimate of toner volume transferred from the lower toner hopper to a surface of a photosensitive drum, determining an amount of toner consumed from the in-situ refillable upper toner hopper based on the number of times the lower toner hopper receives toner from the in-situ refillable upper toner hopper and the estimate of toner volume transferred from the lower toner hopper to the surface of the photosensitive drum, and generating an upper toner hopper refill notification when the amount of toner consumed from the in-situ refillable upper toner hopper is determined to exceed a threshold value.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: October 26, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kenneth K Smith, Ji-Won Moon, Min-Chul Lee, Andrew Chick, Matthew Storey, Jefferson Blake West, Zackary Thomas Hickman, Eun-Kyung Yun, Yoona Min, Pratik Shah
  • TONER LEVEL DETERMINATION AND NOTIFICATION
    Publication number: 20210223715
    Abstract: An image forming apparatus and method for determining a toner level and providing a notification are provided. The method of operating an image forming apparatus includes counting a number of times a lower toner hopper receives toner from an in-situ refillable upper toner hopper, calculating an estimate of toner volume transferred from the lower toner hopper to a surface of a photosensitive drum, determining an amount of toner consumed from the in-situ refillable upper toner hopper based on the number of times the lower toner hopper receives toner from the in-situ refillable upper toner hopper and the estimate of toner volume transferred from the lower toner hopper to the surface of the photosensitive drum, and generating an upper toner hopper refill notification when the amount of toner consumed from the in-situ refillable upper toner hopper is determined to exceed a threshold value.
    Type: Application
    Filed: November 7, 2018
    Publication date: July 22, 2021
    Inventors: Kenneth K SMITH, Ji-Won MOON, Min-Chul LEE, Andrew CHICK, Matthew STOREY, Jefferson Blake WEST, Zackary Thomas HICKMAN, Eun-Kyung YUN, Yoona MIN, Pratik SHAH
  • Multifunction printer
    Patent number: D1015422
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: February 20, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jongkyu Kim, Sangeon Park, Hakyung Kim, Yoona Min