Patents by Inventor Yu-Hsing Lai

Yu-Hsing Lai 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).

  • Patent number: 10983063
    Abstract: A biosensing system includes a biosensor, a light source, first and second photodetectors, and a calculator. The light source is disposed to irradiate the biosensor, so as to generate two or more of a coupled light beam, a reflected light beam, a transmitted light beam and a diffracted light beam. The first photodetector is disposed to measure an intensity of one of the generated light beams that is indicative of an effect of an analyte on light to obtain a first intensity value. The second photodetector is disposed to measure an intensity of another one of the generated light beams that is indicative of an effect of the analyte on light to obtain a second intensity value. The calculator performs compensation calculation based at least on the first and second intensity values.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: April 20, 2021
    Assignee: National Chung Cheng University
    Inventors: Wen-Hsin Hsieh, Hsun-Yuan Li, Yan-Chang Lee, Yu-Hsing Lai
  • Patent number: 10884193
    Abstract: The present invention provides a dual grating sensor having at least two double-sided grating structures for detecting the properties of an analyte. The dual grating sensor includes a substrate, a waveguide layer which is formed on the substrate and has at least two double-sided grating structures, and an upper cover configured on the waveguide layer, wherein a channel is formed between the upper cover and the waveguide layer for the analyte to flow therethrough. A light couples into the waveguide layer via the first double-sided grating structure, transmits in the waveguide layer, and couples out of the waveguide layer via the second double-sided grating structure, such that the properties of the analyte can be detected according to the change of the light intensities of the emergent light. The sensitivity of the dual grating sensor has an additive effect when the light passes through the first double-sided grating structure and the second double-sided grating structure.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: January 5, 2021
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Yu-Hsing Lai, Hsun-Yuan Li, Wen-Hsin Hsieh
  • Publication number: 20200340924
    Abstract: A biosensing system includes a biosensor, a light source, first and second photodetectors, and a calculator. The light source is disposed to irradiate the biosensor, so as to generate two or more of a coupled light beam, a reflected light beam, a transmitted light beam and a diffracted light beam. The first photodetector is disposed to measure an intensity of one of the generated light beams that is indicative of an effect of an analyte on light to obtain a first intensity value. The second photodetector is disposed to measure an intensity of another one of the generated light beams that is indicative of an effect of the analyte on light to obtain a second intensity value. The calculator performs compensation calculation based at least on the first and second intensity values.
    Type: Application
    Filed: September 18, 2019
    Publication date: October 29, 2020
    Inventors: Wen-Hsin HSIEH, Hsun-Yuan LI, Yan-Chang LEE, Yu-Hsing LAI
  • Publication number: 20200225419
    Abstract: The present invention provides a dual grating sensor having at least two double-sided grating structures for detecting the properties of an analyte. The dual grating sensor includes a substrate, a waveguide layer which is formed on the substrate and has at least two double-sided grating structures, and an upper cover configured on the waveguide layer, wherein a channel is formed between the upper cover and the waveguide layer for the analyte to flow therethrough. A light couples into the waveguide layer via the first double-sided grating structure, transmits in the waveguide layer, and couples out of the waveguide layer via the second double-sided grating structure, such that the properties of the analyte can be detected according to the change of the light intensities of the emergent light. The sensitivity of the dual grating sensor has an additive effect when the light passes through the first double-sided grating structure and the second double-sided grating structure.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 16, 2020
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Yu-Hsing Lai, Hsun-Yuan Li, Wen-Hsin Hsieh