Patents by Inventor Jun-wei Lee

Jun-wei Lee 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).

  • Nanopin manufacturing method and nanometer sized tip array by utilizing the method
    Patent number: 8216480
    Abstract: Methods to manufacture metal nanopins and metal oxide nanopins are disclosed. Metal nanopins are fabricated on a metal foil by capillaritron plasma source dry etching. The aspect ratio and the density of metal nanopins are controlled by adjusting the temperature of the metal foil during ion beam dry etching. The end radius of metal nanopins less than 10 nm and the aspect ratio of metal nanopins between 25 and 30 can be achieved. Besides, metal oxide nanopins are fabricated by ion implantation and thermal oxidation. The metal foil is implanted with ions and then thermally oxidized to form the metal oxide nanopins. It shows that the metal oxide nanopins fabricated with oxygen implantation exhibit better field emission properties.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: July 10, 2012
    Assignee: National Taiwan University of Science and Technology
    Inventors: Liang-chiun Chao, Chung-chi Liau, Jun-wei Lee
  • NANOPIN MANUFACTURING METHOD AND NANOMETER SIZED TIP ARRAY BY UTILIZING THE METHOD
    Publication number: 20090252889
    Abstract: Methods to manufacture metal nanopins and metal oxide nanopins are disclosed. Metal nanopins are fabricated on a metal foil by capillaritron plasma source dry etching. The aspect ratio and the density of metal nanopins are controlled by adjusting the temperature of the metal foil during ion beam dry etching. The end radius of metal nanopins less than 10 nm and the aspect ratio of metal nanopins between 25 and 30 can be achieved. Besides, metal oxide nanopins are fabricated by ion implantation and thermal oxidation. The metal foil is implanted with ions and then thermally oxidized to form the metal oxide nanopins. It shows that the metal oxide nanopins fabricated with oxygen implantation exhibit better field emission properties.
    Type: Application
    Filed: October 15, 2008
    Publication date: October 8, 2009
    Applicant: National Taiwan University of Science and Technology
    Inventors: Liang-chiun Chao, Chung-chi Liau, Jun-wei Lee
  • Stand assembly for a barbecue device
    Publication number: 20060278208
    Abstract: A stand assembly for a barbecue device has an extension rod (10) with a distal end, an abutting head (20) mounted on the distal end of the extension rod (10) and an adjustable joint secured between the extension rod (10) and the abutting head (20). Particularly, the abutting head (20) has multiple teeth (22) to adapt to uneven ground and the adjustable joint keeps the barbecue device always balanced on the uneven ground, especially some uneven ground with gravelstones or pebbles. Thereby, the barbecue device can stand stably on any uneven ground.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 14, 2006
    Inventor: Jun-Wei Lee