Patents by Inventor Deuk-yong Koh

Deuk-yong Koh 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).

  • Valve and micro fluid pump having the same
    Patent number: 7866954
    Abstract: Disclosed herein are a valve and a micro fluid pump having the same. The valve is mounted in a micro fluid pump having a capillary tube, to which a gas supply unit and a fluid transfer pipe are connected, for controlling the introduction and the discharge of fluid. The valve includes a discharge pipe filled with liquid such that the discharge pipe has a predetermined resistance pressure and constructed in a structure in which one end of the discharge pipe is connected to the capillary tube such that the discharge pipe communicates with the interior of the capillary tube, and the other end of the discharge pipe is open, thereby allowing gas out of the capillary tube through the discharge pipe when a gas pressure in the capillary tube exceeds the resistance pressure of the discharge pipe.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: January 11, 2011
    Assignee: Korea Institute of Machinery & Materials
    Inventors: Duck-jong Kim, Yun-wook Hwang, Yu-chang Kim, Sang-jin Park, Pil-woo Heo, Eui-soo Yoon, Deuk-yong Koh
  • VALVE AND MICRO FLUID PUMP HAVING THE SAME
    Publication number: 20080075605
    Abstract: Disclosed herein are a valve and a micro fluid pump having the same. The valve is mounted in a micro fluid pump having a capillary tube, to which a gas supply unit and a fluid transfer pipe are connected, for controlling the introduction and the discharge of fluid. The valve includes a discharge pipe filled with liquid such that the discharge pipe has a predetermined resistance pressure and constructed in a structure in which one end of the discharge pipe is connected to the capillary tube such that the discharge pipe communicates with the interior of the capillary tube, and the other end of the discharge pipe is open, thereby allowing gas out of the capillary tube through the discharge pipe when a gas pressure in the capillary tube exceeds the resistance pressure of the discharge pipe.
    Type: Application
    Filed: December 29, 2006
    Publication date: March 27, 2008
    Applicant: KOREAN INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Duck-jong Kim, Yun-wook Hwang, Yu-chang Kim, Sang-jin Park, Pil-woo Heo, Eui-soo Yoon, Deuk-yong Koh