Cuong Q Tran

US Patent:

6555151, Apr 29, 2003

Filed:

Jan 12, 2001

Appl. No.:

09/760353

Inventors:

Yatao Hu - Wayne PA
Cuong Tran - Bethlehem PA

Assignee:

PQ Corporation - Berwyn PA

International Classification:

C12H 102

US Classification:

426422, 426423

Abstract:

An adsorbent removes certain undesirable components from beverages, such as beer, and has a low beverage soluble iron (BSI) content. These undesirable components include contaminants which cause chill haze. The adsorbent includes two components, a silica component and a polyphosphate sequestering agent component, such as sodium tripolyphosphate (STPP). The process for using the adsorbent involves first contacting a beverage with an adsorbent to adsorb at least a portion of the undesirable components then separating the adsorbent from the beverage. The adsorbent may be formed by one of two methods or a combination of both. The first method involves adding the polyphosphate sequestering agent to a reactant, such as a sodium or potassium silicate solution, prior to or during the gelation stage. A second method involves adding the polyphosphate sequestering agent to the water wash after a hydrogel is formed. The BSI of the adsorbent is substantially reduced using the first method, but the total iron content of the adsorbent appears to increase.

US Patent:

7139097, Nov 21, 2006

Filed:

Mar 11, 2002

Appl. No.:

10/095606

Inventors:

Vincent Wu - Irvine CA, US
Cuong Tran - Orange CA, US

Assignee:

Kabushiki Kaisha Toshiba - Tokyo
Toshiba Tec Kabushiki Kaisha - Tokyo

International Classification:

G06F 15/00
G06F 17/30
H04N 1/46

US Classification:

358 19, 358504, 707 10, 707200, 707204

Abstract:

The present invention provides a method and system for testing the output of a digital imaging system. The method comprises the steps of sending a test job to a test digital imaging system and generating test information. The test information suitably comprises a plurality of computed values, each computed value corresponding to a portion of the test job. The test information is then compared with control information produced by sending the test job to a control digital imaging system. In addition, the invention provides a digital imaging device designed to accept test job and capable of generating the test information upon initiation of testing procedures.

US Patent:

20030170361, Sep 11, 2003

Filed:

Mar 17, 2003

Appl. No.:

10/390361

Inventors:

Yatao Hu - Wayne PA, US
Cuong Tran - Bethlehem PA, US

International Classification:

C12H001/04

US Classification:

426/422000

Abstract:

An adsorbent removes certain undesirable components from beverages, such as beer, and has a low beverage soluble iron (BSI) content. These undesirable components include contaminants which cause chill haze. The adsorbent includes two components, a silica component and a polyphosphate sequestering agent component, such as sodium tripolyphosphate (STPP). The process for using the adsorbent involves first contacting a beverage with an adsorbent to adsorb at least a portion of the undesirable components then separating the adsorbent from the beverage. The adsorbent may be formed by one of two methods or a combination of both. The first method involves adding the polyphosphate sequestering agent to a reactant, such as a sodium or potassium silicate solution, prior to or during the gelation stage. A second method involves adding the polyphosphate sequestering agent to the water wash after a hydrogel is formed. The BSI of the adsorbent is substantially reduced using the first method, but the total iron content of the adsorbent appears to increase. The second method decreases both the BSI and the total iron content of the silica gel.