Patents by Inventor SANG-SIK HEO

SANG-SIK HEO 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).

  • Method for preparing perovskite crystal, perovskite crystal prepared therefrom, light absorption layer, and photovoltaic cellshielding electromagnetic wave, and electrode
    Publication number: 20240099116
    Abstract: Provided is a method for preparing a perovskite crystal that improves the performance of a photovoltaic cell. One embodiment of the present disclosure provides a method for preparing a perovskite crystal, the method including: a step S1 of preparing a perovskite solution containing a perovskite precursor and a first polar aprotic solvent; and a step S2 of preparing a perovskite crystal by mixing the perovskite solution and an antisolvent, wherein the antisolvent includes a second polar aprotic solvent.
    Type: Application
    Filed: September 15, 2023
    Publication date: March 21, 2024
    Inventors: Woo Sik Kim, Sang Hyuk Im, Tarak Nath Mandal, Jin Hyuck Heo
  • Circuits and methods to selectively switch power signal generator inputs to a load
    Patent number: 10181723
    Abstract: Methods of operating a power supply switching circuit including selecting a first power supply signal for provisioning through the power supply switching circuit to a electronic storage device. A current draw can be detected via the first power supply signal that exceeds a predetermined current limit and a second power supply signal can be coupled to the first power supply signal for provisioning through the power supply switching circuit to the electronic storage device responsive to the current draw exceeding the predetermined current limit.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: January 15, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Sung Lee, Chung-Hyun Ryu, Sang-Hun Jeon, Jae-Woong Choi, Sang-Sik Heo
  • CIRCUITS AND METHODS TO SELECTIVELY SWITCH POWER SIGNAL GENERATOR INPUTS TO A LOAD
    Publication number: 20170063082
    Abstract: Methods of operating a power supply switching circuit including selecting a first power supply signal for provisioning through the power supply switching circuit to a electronic storage device. A current draw can be detected via the first power supply signal that exceeds a predetermined current limit and a second power supply signal can be coupled to the first power supply signal for provisioning through the power supply switching circuit to the electronic storage device responsive to the current draw exceeding the predetermined current limit.
    Type: Application
    Filed: June 23, 2016
    Publication date: March 2, 2017
    Inventors: WOO-SUNG LEE, CHUNG-HYUN RYU, SANG-HUN JEON, JAE-WOONG CHOI, SANG-SIK HEO