Patents by Inventor Seong Hak Choi

Seong Hak Choi 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).

  • Patent number: 7727393
    Abstract: Disclosed is a submerged hollow fiber membrane module which is easy to expand, has a small installation area, and exhibits excellent contamination prevention and durability. The submerged hollow fiber membrane module comprises: (I) a module body divided into two portions which has a permeated water collection space (5) and a permeated water outlet (3); (II) module support tubes (17) which are vertically connected to the upper and lower ends of the module body; (III) a plate type module header insertion layer which is provided with hollow fiber membrane spaces (10), and is inserted into the module body; (IV) a plate type diffusion layer which is provided with a diffusion port (4) and diffusion tubes (11) and is inserted into the module body subsequent to the module header insertion layer; and (V) module headers which are inserted into the module header insertion layer.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: June 1, 2010
    Assignee: Kolon Industries Inc.
    Inventors: Kwang Jin Lee, Moo Seok Lee, Yong Cheol Shin, Seong Hak Choi, Young Tai Woo
  • Patent number: 7686955
    Abstract: The present invention discloses a submerged hollow fiber membrane module which is of such a structure that it is easy to expand a module processing capability according to a treatment capacity, provides convenient module coupling properties and module manufacturing properties, maintains a stable flux under an efficient air diffusion condition and prevents the damage of membranes and water leakage caused by the loosening of module connecting regions.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: March 30, 2010
    Assignee: Kolon Industries, Inc.
    Inventors: Moo Seok Lee, Kwang Jin Lee, Yong Cheol Shin, Seong Hak Choi, Youn Tai Woo
  • Publication number: 20080230466
    Abstract: Disclosed is a submerged hollow fiber membrane module which is easy to expand, has a small installation area, and exhibits excellent contamination prevention and durability. The submerged hollow fiber membrane module comprises: (I) a module body divided into two portions which has a permeated water collection space (5) and a permeated water outlet (3); (II) module support tubes (17) which are vertically connected to the upper and lower ends of the module body; (III) a plate type module header insertion layer which is provided with hollow fiber membrane spaces (10), and is inserted into the module body; (IV) a plate type diffusion layer which is provided with a diffusion port (4) and diffusion tubes (11) and is inserted into the module body subsequent to the module header insertion layer; and (V) module headers which are inserted into the module header insertion layer.
    Type: Application
    Filed: April 6, 2005
    Publication date: September 25, 2008
    Inventors: Kwang Jin Lee, Moo Seok Lee, Yong Cheol Shin, Seong Hak Choi, Young Tai Woo