Patents by Inventor Kuo-Hsin CHANG

Kuo-Hsin 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: 20170156215
    Abstract: A printed graphene-based laminate for wireless wearable communications can be processed at low temperature so that it is compatible with heat-sensitive flexible materials like papers and textiles. The printed graphene-based laminate is of high conductivity, high flexibility, light weight and low cost, making it perfect candidate for wireless wearable devices. As a proof of concept, printed graphene-based laminate enabled transmission lines (TLs) and antennas were designed, fabricated and characterized. To explore its potentials in wearable communications applications, mechanically flexible transmission lines and antennas under various bended cases were experimentally studied. The measurement results demonstrate that the printed graphene laminate can be used for RF signal transmitting, radiating and receiving, which represents some of the essential functionalities of RF signal processing in wireless wearable communications systems.
    Type: Application
    Filed: November 26, 2015
    Publication date: June 1, 2017
    Inventors: Chung-Ping LAI, Kuo-Hsin CHANG, Jia-Cing CHEN
  • Patent number: 9639800
    Abstract: A printed radio frequency sensor structure contains: a substrate, a RF antenna arranged on a top surface of the substrate, and a protection layer covering on the RF antenna arranged, wherein plural sensing materials are directly introduced into a RF antenna mixture of the RF antenna. A method of preparing a RFID sensor tag comprising steps of: A). Printing conductive sensing ink/glue on substrate; B. Drying, curing and compressing the conductive sensing ink/glue to form a conductive antenna mixture with plural sensing materials; C). Bonding a chip on a RFID sensing antenna to form a RFID sensor tag; and D). Coating a protection layer on a top of the RFID sensor tag. Here note protection coating can fully, partially or no cover the conductive sensing antenna.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: May 2, 2017
    Inventors: Konstantin Novoselov, Chung Ping Lai, Kuo-Hsin Chang, Jia-Cing Chen
  • Publication number: 20170073553
    Abstract: Graphene glue contains graphene which is directly used as adhesives to bind different components/materials together. Materials such as metal powders, carbon powders, metal oxides, polymers, cellulose, and bio-molecules can all be glued by graphene glue on substrates. Graphene glue as binders can exhibit both the benefits of graphene and the glued materials, showing perfect accumulative effects. Compression can enhance the adhesion, electronic and thermal conductivity of graphene glue.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 16, 2017
    Inventors: Kuo-Hsin CHANG, Jia-Cing CHEN, Ching-Yu LU
  • Patent number: 9596788
    Abstract: A hexagonal boron nitride heat dissipation structure includes a plurality of electronic components, plural thermally conductive buffer layers, and an electronic conductive heat dissipation element. Each electronic component is configured to generate heat, each thermally conductive buffer layer is made of hBN that has thermal conductivity range from 10 to 40 W/mK. Such structure can completely overcome the issue of short circuit of electronic devices. The cooling of modern electronic devices, which has limited space for cooling, can be improved by this simple structure that takes full advantage of hBN and other heat dissipation materials.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: March 14, 2017
    Inventors: Chung-Ping Lai, Kuo-Hsin Chang, Jia-Cing Chen
  • Publication number: 20170046610
    Abstract: A printed radio frequency sensor structure contains: a substrate, a RF antenna arranged on a top surface of the substrate, and a protection layer covering on the RF antenna arranged, wherein plural sensing materials are directly introduced into a RF antenna mixture of the RF antenna. A method of preparing a RFID sensor tag comprising steps of: A). Printing conductive sensing ink/glue on substrate; B. Drying, curing and compressing the conductive sensing ink/glue to form a conductive antenna mixture with plural sensing materials; C). Bonding a chip on a RFID sensing antenna to form a RFID sensor tag; and D). Coating a protection layer on a top of the RFID sensor tag. Here note protection coating can fully, partially or no cover the conductive sensing antenna.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Applicant: BGT Materials Limited
    Inventors: Konstantin NOVOSELOV, Chung Ping LAI, Kuo-Hsin CHANG, Jia-Cing CHEN
  • Patent number: 9563837
    Abstract: A hybrid tag is employed to magnetic system and radio frequency system and contains: an IC chip and an antenna electrically connected with the IC chip. The IC chip includes a memory storage unit configured to store digital data, and the antenna is made of mixture composition in a printing manner, wherein the mixture composition includes electrically conductive material, magnetic material, dispersant and adhesive, and wherein the hybrid tag responds magnetic waves within low frequency (LF) range and responds radio frequency signals within high frequency (HF) range, ultra high frequency (UHF) range, and microwave range. Thereby, the hybrid tag is manufactured easily at low production cost.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: February 7, 2017
    Assignee: BGT MATERIALS LIMITED
    Inventors: Chung-Ping Lai, Jia-Cing Chen, Kuo-Hsin Chang
  • Patent number: 9159503
    Abstract: The present invention relates to a method for manufacturing an electrode of a supercapacitor, comprising: (A) providing a carbon substrate and a phosphorus-containing precursor, and mixing the carbon substrate and the phosphorus-containing precursor at a ratio of 1:100 to 1000:1 by weight; (B) heating the mixture of the carbon substrate and the phosphorus-containing precursor to a temperature between 300° C. and 1100° C. to obtain a P-doped carbon substrate; and (C) forming an electrode of a supercapacitor by using the P-doped carbon substrate. The present invention also relates to a supercapacitor which comprises: a first electrode; a second electrode; and an electrolyte that is interposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode is prepared by the above-mentioned method.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: October 13, 2015
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Chi-Chang Hu, Chien-Liang Liu, Hsiao-Hsuan Shen, Kuo-Hsin Chang
  • Publication number: 20140347785
    Abstract: The present invention relates to a method for manufacturing an electrode of a supercapacitor, comprising: (A) providing a carbon substrate and a phosphorus-containing precursor, and mixing the carbon substrate and the phosphorus-containing precursor at a ratio of 1:100 to 1000:1 by weight; (B) heating the mixture of the carbon substrate and the phosphorus-containing precursor to a temperature between 300° C. and 1100° C. to obtain a P-doped carbon substrate; and (C) forming an electrode of a supercapacitor by using the P-doped carbon substrate. The present invention also relates to a supercapacitor which comprises: a first electrode; a second electrode; and an electrolyte that is interposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode is prepared by the above-mentioned method.
    Type: Application
    Filed: September 17, 2013
    Publication date: November 27, 2014
    Applicant: National Tsing Hua University
    Inventors: Chi-Chang HU, Chien-Liang LIU, Hsiao-Hsuan SHEN, Kuo-Hsin CHANG
  • Publication number: 20100290974
    Abstract: A titanium dioxide coating method is disclosed. An electrolyte containing Ti3+ and at least one of NO3? and NO2? is provided for an electrodeposition device. A substrate is immersed into the electrolyte and electrically connected to the electrodeposition device. A cathodic current is applied to the substrate via the electrodeposition device for reduction of NO2? or NO3?. A titanium dioxide film is thus formed on the surface of the substrate. The thickness, porosity, and morphology of the titanium dioxide film can be controlled by varying the electroplating parameters, and relatively uniform deposits on complex shapes can be obtained by use of low cost instruments.
    Type: Application
    Filed: July 20, 2009
    Publication date: November 18, 2010
    Inventors: Chi-Chang HU, Ching-Chun HUANG, Kuo-Hsin CHANG