Patents by Inventor Rai Sang Jang

Rai Sang Jang 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).

  • Manufacturing device and the method of preparing for the nanofibers via electro blown spinning process
    Patent number: 9279203
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: March 8, 2016
    Assignees: E I DU PONT DE NEMOURS AND COMPANY, NANO TECHNICS COMPANY LTD
    Inventors: Yong Min Kim, Young Bin Sung, Rai Sang Jang, Kyoung Ryoul Ahn
  • Method of preparing nanofibers via electro-blown spinning
    Patent number: 8685310
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: April 1, 2014
    Assignees: E I du Pont de Nemours and Company
    Inventors: Yong Min Kim, Young Bin Sung, Rai Sang Jang, Kyoung Ryoul Ahn
  • MANUFACTURING DEVICE AND THE METHOD OF PREPARING FOR THE NANOFIBERS VIA ELECTRO-BLOWN SPINNING PROCESS
    Publication number: 20120256355
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Application
    Filed: May 14, 2012
    Publication date: October 11, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Yong Min Kim, Kyoung Ryoul Ahn, Young Bin Sung, Rai Sang Jang
  • Manufacturing device and the method of preparing for the nanofibers via electro-blown spinning process
    Patent number: 8178029
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: May 15, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yong Min Kim, Young Bin Sung, Rai Sang Jang, Kyoung Ryoul Ahn
  • MANUFACTURING DEVICE AND THE METHOD OF PREPARING FOR THE NANOFIBERS VIA ELECTRO-BLOWN SPINNING PROCESS
    Publication number: 20100013127
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 21, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Yong Min Kim, Kyoung Ryoul Ahn, Young Bin Sung, Rai Sang Jang
  • MANUFACTURING DEVICE AND THE METHOD OF PREPARING FOR THE NANOFIBERS VIA ELECTRO BLOWN SPINNING PROCESS
    Publication number: 20090325449
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 31, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Yong Min KIM, Kyoung Ryoul AHN, Young Bin SUNG, Rai Sang JANG
  • Manufacturing device and the method of preparing for the nanofibers via electro-blown spinning process
    Patent number: 7618579
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: November 17, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yong Min Kim, Kyoung Ryoul Ahn, Young Bin Sung, Rai Sang Jang