Patents by Inventor TING-CHOU CHANG

TING-CHOU 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: 20220334167
    Abstract: A method for detecting defects in a GaN high electron mobility transistor is disclosed. The method includes steps of measuring a plurality of electrical characteristics of a GaN high electron mobility transistor, measuring the plurality of electrical characteristics after performing a deterioration test on the GaN high electron mobility transistor, irradiating the GaN high electron mobility transistor in turns with a plurality of light sources with different wavelengths and measuring the plurality of electrical characteristics after each irradiation of the GaN high electron mobility transistor by each of the plurality of light sources, and comparing changes of the plurality of electrical characteristics measured in the above steps to determine the defect location of the GaN high electron mobility transistor.
    Type: Application
    Filed: June 10, 2021
    Publication date: October 20, 2022
    Inventors: Ting-Chang CHANG, Hao-Xuan ZHENG, Yu-Shan LIN, Fu-Yuan JIN, Fong-Min CIOU, Mao-Chou TAI, Yun-Hsuan LIN, Wei-Chen HUANG, Wen-Chung CHEN
  • Publication number: 20210252502
    Abstract: A microfluidic detection unit comprises at least one fluid injection section, a fluid storage section and a detection section. Each fluid injection section defines a fluid outlet; the fluid storage section is in gas communication with the atmosphere and defines a fluid inlet; the detection section defines a first end in communication with the fluid outlet and a second end in communication with the fluid inlet. A height difference is defined between the fluid outlet and the fluid inlet along the direction of gravity. When a first fluid is injected from the at least one fluid injection section, the first fluid is driven by gravity to pass through the detection section and accumulate to form a droplet at the fluid inlet, such that a state of fluid pressure equilibrium of the first fluid is established.
    Type: Application
    Filed: June 10, 2019
    Publication date: August 19, 2021
    Inventors: Yu-Chung HUANG, Yi-Li SUN, Ting-Chou CHANG, Jhy-Wen WU, Nan-Kuang YAO, Lai-Kwan CHAU, Shau-Chun WANG, Ying Ting CHEN
  • Patent number: 9952196
    Abstract: A method for detecting albumin based on a colorimetric assay and a system thereof are disclosed. Gold nanoparticles are added into the sample preparing device having a sample without spectroscopic tags, wherein the sample without spectroscopic tags is formed as the alkaline solution to avoid the interference substances adhering on the gold nanoparticles. The gold nanoparticles are concentrated by using the microfluidic concentrator with the circular ion exchange membrane by applying an external electric field across two electrodes. The image of the concentrated gold nanoparticles is captured by the image capturing device for measuring the saturation intensities of the image, wherein there is a relation between the saturation intensities and the concentration of the albumin in the sample without spectroscopic tags. The concentration of the albumin of the sample without spectroscopic tags is obtained by the relation and the measured saturation intensities.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 24, 2018
    Assignee: National Chung Cheng University
    Inventors: Shau-Chun Wang, Teh-Sheng Lai, Ting-Chou Chang
  • Publication number: 20170146507
    Abstract: A method for detecting albumin based on a colorimetric assay and a system thereof are disclosed. Gold nanoparticles are added into the sample preparing device having a sample without spectroscopic tags, wherein the sample without spectroscopic tags is formed as the alkaline solution to avoid the interference substances adhering on the gold nanoparticles. The gold nanoparticles are concentrated by using the microfluidic concentrator with the circular ion exchange membrane by applying an external electric field across two electrodes. The image of the concentrated gold nanoparticles is captured by the image capturing device for measuring the saturation intensities of the image, wherein there is a relation between the saturation intensities and the concentration of the albumin in the sample without spectroscopic tags. The concentration of the albumin of the sample without spectroscopic tags is obtained by the relation and the measured saturation intensities.
    Type: Application
    Filed: December 31, 2015
    Publication date: May 25, 2017
    Inventors: SHAU-CHUN WANG, TEH-SHENG LAI, TING-CHOU CHANG
  • Patent number: 9506861
    Abstract: A method for obtaining the binding kinetic rate constants using fiber optic particle plasmon resonance (FOPPR) sensor, suitable for a test solution with two or more concentrations, which employs the following major steps: providing one FOPPR sensor instrument system, obtaining optical time-resolved signal intensities starting at the initial time to the steady state of the two or more regions, substituting the measured signal intensity values into the formula which is derived by using the pseudo-first order rate equation model. In addition, this method measures the temporal signal intensity evolution under static conditions as the samples are quickly loaded. As a result, unlike the conventional device where the sample is continuously infused, the method is able to measure the association and dissociation rate constants of which the upper bounds are not limited by the sample flow rate.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: November 29, 2016
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Shau-Chun Wang, Lai-Kwan Chau, Ting-Chou Chang, Chao-Ching Wu
  • Publication number: 20140051188
    Abstract: A method for obtaining the binding kinetic rate constants using fiber optic particle plasmon resonance (FOPPR) sensor, suitable for a test solution with two or more concentrations, which employs the following major steps: providing one FOPPR sensor instrument system, obtaining optical time-resolved signal intensities starting at the initial time to the steady state of the two or more regions, substituting the measured signal intensity values into the formula which is derived by using the pseudo-first order rate equation model. In addition, this method measures the temporal signal intensity evolution under static conditions as the samples are quickly loaded. As a result, unlike the conventional device where the sample is continuously infused, the method is able to measure the association and dissociation rate constants of which the upper bounds are not limited by the sample flow rate.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: SHAU-CHUN WANG, LAI-KWAN CHAU, TING-CHOU CHANG, CHAO-CHING WU
  • Publication number: 20130122608
    Abstract: A method for estimating binding kinetic rate constants by using a fiber optic particle plasmon resonance (FOPPR) sensor mainly employs the steps of: providing a FOPPR sensor instrument system, obtaining optical signal intensities at an initial time and steady state signal intensities of first and second regions in an intensity versus time graph separately, substituting the measured signal intensity values into a formula derived by using a pseudo-first order rate equation model. According to this method, no fluorophore labeling is required. In addition, this method measures a temporal signal intensity evolution under static conditions as the samples are quickly loaded. As a result, unlike the conventional device where the sample is continuously infused, the method is able to measure binding and decomposition rate constants whose upper limit is not limited by a sample flow rate.
    Type: Application
    Filed: May 14, 2012
    Publication date: May 16, 2013
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: SHAU-CHUN WANG, LAI-KWAN CHAU, TING-CHOU CHANG, CHAO-CHING WU