Young Chul Choi

Address:

1661 Berkshire Hl Dr, Duluth, GA 30097

Phone:

(404)4521318

VIN:

KNDMG4C77C6432082

Make:

KIA

Model:

SEDONA

Year:

2012

Address:

4370 Satellite Blvd APT 323, Duluth, GA 30096

VIN:

KMHFC46FX7A222064

Make:

HYUNDAI

Model:

AZERA SE/LIMITED

Year:

2007

Address:

18004 Java Isle Dr, Tampa, FL 33647

VIN:

5FNRL38697B426614

Make:

HONDA

Model:

ODYSSEY

Year:

2007

US Patent:

7771599, Aug 10, 2010

Filed:

Mar 9, 2009

Appl. No.:

12/400765

Inventors:

Young Chul Choi - Tampa FL, US
Chunwoo Lee - Tampa FL, US
Elvira Fernandez Sanchis - Kissimmee FL, US

Assignee:

Doosan Hydro Technology, Inc. - Tampa FL

International Classification:

B01D 61/00
B01D 61/02
B01D 61/08

US Classification:

210652, 2103216, 2102572, 210644, 210639, 210651, 96 6, 95 46, 95 51, 95156

Abstract:

Disclosed is an improved method for the remineralization of process water in a desalination system. The method sequesters carbon dioxide gas (CO) from seawater or concentrate (brine) of desalination process via a gas transfer membrane. The sequestered carbon dioxide gas (CO) is thereafter used in the production of soluble calcium bicarbonate (Ca(HCO)). The calcium bicarbonate (Ca(HCO)) adds hardness and alkalinity to the resulting process water.

US Patent:

20100272978, Oct 28, 2010

Filed:

Oct 10, 2008

Appl. No.:

12/682588

Inventors:

Satish Kumar - Atlanta GA, US
Han Gi Chae - Atlanta GA, US
Young Ho Choi - Atlanta GA, US

Assignee:

Georgia Tech Research Corporation - Atlanta GA

International Classification:

D01F 9/10
D01F 9/22
B29C 55/00
D01F 9/12

US Classification:

428220, 428367, 2642101, 264 292, 977742, 977842

Abstract:

The various embodiments of the present invention provide improved carbon fibers and films, as well as methods of making the carbon fibers and films. The carbon fibers and films disclosed herein are generally formed from an acrylonitrile-containing polymer. The carbon fibers and/or films can also be formed from a composite that includes the acrylonitrile-containing polymer as well as carbon nanotubes, graphite sheets, or both. The fibers and films described herein can be tailored to exhibit one or more of high strength, high modulus, high electrical conductivity, high thermal conductivity, or optical transparency, depending on the desired application for the fibers or films.

US Patent:

20110132840, Jun 9, 2011

Filed:

Dec 9, 2010

Appl. No.:

12/964217

Inventors:

Young Chul Choi - Tampa FL, US
Chunwoo Lee - Tampa FL, US
Pranay Mane - Tampa FL, US

Assignee:

DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD. - Gyeongsangnam-do

International Classification:

C02F 9/04
C02F 1/44
C02F 1/68

US Classification:

210638

Abstract:

Disclosed is an improved method for remineralizing desalinated water. The desalination system includes, but is not limited to, a conventional reverse osmosis membrane system, forward osmosis membrane system, electro dialysis system, Multi Stage Flash (MSF) system, and Multi Effect Distillation (MED) system.