Patents by Inventor Yoon-Jin Chang

Yoon-Jin Chang 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: 20240072283
    Abstract: A fuel cell vehicle includes a cell stack, a DC level converter, an output unit, a first switching unit disposed between a positive output terminal of the DC level converter and a positive input terminal of the output unit, a second switching unit disposed between a negative output terminal of the DC level converter and a negative input terminal of the output unit, a resistor and a third switching unit connected to each other in series between the positive output terminal of the DC level converter and the negative output terminal of the DC level converter, a fourth switching unit disposed between a contact point between the resistor and the third switching unit and the positive input terminal of the output unit, and a controller for controlling switching operation of the first, second, third and fourth switching units according to an operation mode.
    Type: Application
    Filed: July 3, 2023
    Publication date: February 29, 2024
    Applicants: Hyundai Motor Company, KIA CORPORATION
    Inventors: Ki Wook Ohm, Woo Young Lee, Jong Jun Lee, Myung Jin Kim, Sae Kwon Chang, Yoon Tae Kim
  • Patent number: 10754975
    Abstract: A computing system includes: a storage unit configured to store protected personal information of a life profile; and a control unit, coupled to the storage unit, configured to: determine an event indicator for the protected personal information; monitor an event source associated with the protected personal information for the event indicator; determine the occurrence of a life event based on detecting the event indicator from the event source; and generate a life guidance to address the life event for displaying on a device.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: August 25, 2020
    Assignee: LifeSite, Inc.
    Inventors: Christopher Lloyd Wong, Yoon-Jin Chang, Crystal Augustine Lee, Amy Elaine Wong, Barney G. Lee, Joseph Michael Kolba, Daniel Youberg, Eric R. Kisner
  • Publication number: 20180101696
    Abstract: A computing system includes: a storage unit configured to store protected personal information of a life profile; and a control unit, coupled to the storage unit, configured to: determine an event indicator for the protected personal information; monitor an event source associated with the protected personal information for the event indicator; determine the occurrence of a life event based on detecting the event indicator from the event source; and generate a life guidance to address the life event for displaying on a device.
    Type: Application
    Filed: October 10, 2016
    Publication date: April 12, 2018
    Inventors: Christopher Lloyd Wong, Yoon-Jin Chang, Crystal Augustine Lee, Amy Elaine Wong, Barney G. Lee, Joseph Michael Kolba, Daniel Youberg, Eric R. Kisner