Patents by Inventor Yung-Hsi Chang

Yung-Hsi 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: 20240139142
    Abstract: Provided is a method for preventing or treating a liver disease, including administering a therapeutically effective amount of pharmaceutical composition to a subject in need, and the pharmaceutical composition includes the isothiocyanate structural modified compound and a pharmaceutically acceptable carrier thereof.
    Type: Application
    Filed: September 14, 2023
    Publication date: May 2, 2024
    Applicants: TAIPEI VETERANS GENERAL HOSPITAL, NATIONAL YANG MING CHIAO TUNG UNIVERSITY, PHARMAESSENTIA CORPORATION
    Inventors: Jaw-Ching WU, Yung-Sheng CHANG, Kuo-Hsi KAO, Chan-Kou HWANG, Ko-Chung LIN
  • Patent number: 8971065
    Abstract: A system for providing, from a direct current (DC) voltage source, an alternating current (AC) to an electrical grid outputting a grid voltage, the system including: a transformer for coupling to the DC voltage source through a first switch controlled by a first control signal, and configured to provide a converted voltage based on a DC voltage; a rectifier coupled to the transformer, and configured to generate an envelope voltage of the converted voltage; a plurality of switches coupled to the rectifier to receive the generated envelope voltage of the converted voltage, the plurality of switches being controlled by a plurality of control signals, respectively, and configured to generate the AC from the generated envelope voltage of the converted voltage; and control apparatus coupled to the first switch and the plurality of switches, and configured to provide, based on the grid voltage, the first control signal and the plurality of control signals.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: March 3, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Kai-Cheung Juang, Tzu-Yi Yang, Chung-Lin Tseng, Hsuan-Yu Tsai, Yung-Hsi Chang
  • Publication number: 20130181659
    Abstract: An exemplary embodiment provides a charging method. The charging method includes detecting a charging current and producing a current-detecting signal according to the charging current; comparing the current-detecting signal with a first reference voltage and producing a current comparison signal accordingly; producing a second reference voltage according to the current comparison signal; comparing a battery voltage of a battery with the second reference voltage and producing a voltage comparison signal accordingly; producing a set of control signals according to the voltage comparison signal; and producing an adjusted charging voltage according to the control signals and a charging voltage, wherein the charging current is produced by the adjusted charging voltage to charge the battery.
    Type: Application
    Filed: August 31, 2012
    Publication date: July 18, 2013
    Inventors: Yung-Hsi CHANG, Yi-Feng LUO, Chueh-Hao YU, Kai-Cheung JUANG
  • Publication number: 20130179103
    Abstract: A battery analysis device for a battery module having at least one battery cell includes a power source supply unit, a signal capturing unit, a signal adjusting unit, a frequency domain analyzing unit, a time domain analyzing unit, and a processing unit. The power source supply unit provides a variable-frequency voltage signal to a battery cell. The signal capturing unit captures a current signal generated by a battery cell in response to the variable-frequency voltage signal. The signal adjusting unit adjusts the variable-frequency voltage signal and the current signal. The frequency domain analyzing unit and time domain analyzing unit analyze both the adjusted variable-frequency voltage signal and the adjusted current signal in frequency domain and time domain respectively for obtaining a frequency domain parameter and a time domain parameter. The processing unit obtains electrochemistry characteristics of the battery cell according to the frequency and the time domain parameters.
    Type: Application
    Filed: April 4, 2012
    Publication date: July 11, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yi-Feng Luo, Kai-Cheung Juang, Yung-Hsi Chang, Chueh-Hao Yu
  • Publication number: 20130033906
    Abstract: A system for providing, from a direct current (DC) voltage source, an alternating current (AC) to an electrical grid outputting a grid voltage, the system including: a transformer for coupling to the DC voltage source through a first switch controlled by a first control signal, and configured to provide a converted voltage based on a DC voltage; a rectifier coupled to the transformer, and configured to generate an envelope voltage of the converted voltage; a plurality of switches coupled to the rectifier to receive the generated envelope voltage of the converted voltage, the plurality of switches being controlled by a plurality of control signals, respectively, and configured to generate the AC from the generated envelope voltage of the converted voltage; and control apparatus coupled to the first switch and the plurality of switches, and configured to provide, based on the grid voltage, the first control signal and the plurality of control signals.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Inventors: Kai-Cheung Juang, Tzu-Yi Yang, Chung-Lin Tseng, Hsuan-Yu Tsai, Yung-Hsi Chang