Patents by Inventor Jiann Shieh

Jiann Shieh 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: 20110193262
    Abstract: A method for forming a microstructure on a polymeric substrate includes: providing a master mold formed with a micro-feature thereon, the micro-feature having a base portion and a plurality of protrusion portions protruding from the base portion, each of the protrusion portions having a tapered anisotropic shape, including a free end distal from the base portion, and being spaced apart from an adjacent one of the protrusion portions, a distance between the free ends of two adjacent ones of the protrusion portions being not greater than 40 nm; and impressing the free end of each of the protrusion portions of the micro-feature into the polymeric substrate at an elevated temperature T1, the polymeric substrate having a pyrolysis temperature Tp greater than the elevated temperature T1.
    Type: Application
    Filed: October 7, 2010
    Publication date: August 11, 2011
    Inventors: Chien-Chong Hong, Pin Huang, Jiann Shieh
  • Publication number: 20110042850
    Abstract: A method of manufacturing a plastic surface with superhydrophobicity and high transparency is disclosed. In this method, a thermal nanoimprinting mold method is used to form a plurality of sub-20 nm nanograss structure on a surface of a cyclic-olefin copolymer (COC) material, so that the surface can have superhydrophobicity and high transparency at the same time.
    Type: Application
    Filed: December 15, 2009
    Publication date: February 24, 2011
    Inventors: Chien-Chong Hong, Pin Huang, Jiann Shieh
  • Patent number: 6821919
    Abstract: A nanocomposite having titanium aluminum carbon nitride and amorphous carbon is disclosed, and the nanocomposite comprises a titanium aluminum carbon nitride grain of nanometer scale and an amorphous carbon matrix, wherein the titanium aluminum carbon nitride grain of nanometer scale is embedded into the amorphous carbon matrix. The method for coating the nanocomposite of titanium aluminum carbon nitride-amorphous carbon on a substrate comprises: depositing the substrate in a reaction chamber; and igniting plasma to clean and remove an oxide layer and adsorptive on the substrate; injecting a reaction gas. The reaction gas is activated and thermal decomposed by plasma to form the nanocomposite coating layer of titanium aluminum carbon nitride-amorphous carbon on the surface of the substrate.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: November 23, 2004
    Assignee: National Cheng Kung University
    Inventors: Ming-Hsiung Hon, Jiann Shieh
  • Publication number: 20030143402
    Abstract: A nanocomposite having titanium aluminum carbon nitride and amorphous carbon is disclosed, and the nanocomposite comprises a titanium aluminum carbon nitride grain of nanometer scale and an amorphous carbon matrix, wherein the titanium aluminum carbon nitride grain of nanometer scale is embedded into the amorphous carbon matrix. The method for coating the nanocomposite of titanium aluminum carbon nitride-amorphous carbon on a substrate comprises: depositing the substrate in a reaction chamber; and igniting plasma to clean and remove an oxide layer and adsorptive on the substrate; injecting a reaction gas. The reaction gas is activated and thermal decomposed by plasma to form the nanocomposite coating layer of titanium aluminum carbon nitride-amorphous carbon on the surface of the substrate.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 31, 2003
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Min-Hsiung Hon, Jiann Shieh