Hui Ta Chang

Address:

33 Deer Crk Rd, Pittsford, NY 14534

Phone:

(585)2484950

VIN:

1N4CL21E09C189308

Make:

NISSAN

Model:

ALTIMA HYBRID

Year:

2009

US Patent:

6358657, Mar 19, 2002

Filed:

Aug 16, 2001

Appl. No.:

09/930501

Inventors:

Scott M. Silence - Fairport NY
Joo T. Chung - Webster NY
James M. Proper - Webster NY
John J. Ianni - Medina NY
Jeffrey H. Sokol - Pittsford NY
Hui Chang - Pittsford NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 9087

US Classification:

4301094, 430 45

Abstract:

A toner having a high colorant concentration and a binder resin that includes a polyester resin having linear portions and crosslinked portions of high density crosslinked microgel particles has a melt flow index value of about 11ÂMFI units. The binder resin may also include a mixture of two polyester resins having different MFI values.

US Patent:

6359105, Mar 19, 2002

Filed:

Oct 26, 2000

Appl. No.:

09/695861

Inventors:

John James Ianni - Medina NY
J. Stephen Kittelberger - Rochester NY
Daniel Andrew Harrington - Walworth NY
Eugene Frederick Young - Rochester NY
Hui Chang - Pittsford NY
Nilmarie Santos-Roman - Penfield NY
Dennis J. OKeefe - Ontario NY
Joseph Louis Leonardo - Penfield NY
Paul Lynn Jacobs - Webster NY
Kiran B. Sheth - Penfield NY
Dongming Li - Fairport NY
Robert Edward Lutz - Webster NY
Yelena Lipovetskaya - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C08G 6302

US Classification:

528272, 528271

Abstract:

Cross-linked toner resin having linear portions and cross-linked portions of high density microgel particles, where the toner resin is an unsaturated polyester resin, is prepared using a liquid chemical initiator such as 1,1-bis(t-butyl peroxy)-3,3,5-trimethylcyclohexane so that the cross-linked resin achieved contains less than 0. 20 percent by weight of acids. In particular, the cross-linked toner resin is free of benzoic acid. The method of making the cross-linked toner resin includes (a) spraying the liquid chemical initiator onto the unsaturated polyester resin prior to, during or subsequent to melting of the unsaturated polyester resin to form a polymer melt; and (b) subsequently cross-linking the polymer melt under high shear to form the cross-linked toner resin.

US Patent:

6593053, Jul 15, 2003

Filed:

Oct 23, 2000

Appl. No.:

09/692867

Inventors:

Hui Chang - Pittsford NY
Dongming Li - Fairport NY
Joseph L. Leonardo - Penfield NY
Yelena Lipovetskaya - Rochester NY
Laura A. Williams - Penfield NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 908

US Classification:

43013718, 73724

Abstract:

A process including: introducing and continuously melt mixing in an extruder a mixture of a first resin feed and a second resin feed; measuring within the extruder the melt rheology of the resulting melt mixture of the first and second resins; determining the relative ratio of the first resin and a second resin from the melt rheology in the resulting melt mixture; and adjusting the relative feed ratio of the first resin and second resin feeds introduced to the extruder.

US Patent:

7214458, May 8, 2007

Filed:

Aug 28, 2003

Appl. No.:

10/650553

Inventors:

Mark E. Mang - Rochester NY, US
Hui Chang - Pittsford NY, US
D. Paul Casalmir - Sodus NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 9/08

US Classification:

4301081, 4301093, 4301094, 430124, 430136

Abstract:

A toner that contains resin, colorant, wax and an aromatic hydrocarbon compatibilizer.

US Patent:

7247415, Jul 24, 2007

Filed:

Aug 31, 2004

Appl. No.:

10/929547

Inventors:

Mark E. Mang - Rochester NY, US
Joseph L. Leonardo - Penfield NY, US
Hui Chang - Pittsford NY, US
Robert R. Heim - Webster NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 9/08

US Classification:

43013719, 43013718

Abstract:

Toner particles are prepared by a process comprising providing an extrusion apparatus; adding resin particles and additive particles to a supply means in the extrusion apparatus; adding the resin particles and the additive particles to a blending chamber in the extrusion apparatus, which blending chamber is maintained at a temperature of from about 50 C. to about 120 C. ; blending the resin particles and the additive particles to form a mixture; extruding the resin particles to form extruded material; injecting liquid substances, which have a lower boiling point than the melt temperature of the resin particles, into the blending chamber during extrusion without the application of a vacuum to remove the liquid substances prior to extrusion; and grinding the extruded material to form toner particles.

US Patent:

7354689, Apr 8, 2008

Filed:

Mar 23, 2005

Appl. No.:

11/086358

Inventors:

Victor Berko-Boateng - Penfield NY, US
Hui Chang - Pittsford NY, US
John R. Laing - Rochester NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G03G 9/08

US Classification:

4301371, 43013718, 4301372

Abstract:

A waste toner reclamation process includes collecting waste toner, screening the collected waste toner, meltmixing the screened waste toner with a second toner, and extruding, grinding and classifying the mixed toner product, wherein the collected waste toner comprises a mixture of different colored toner particles.

US Patent:

7459258, Dec 2, 2008

Filed:

Jun 17, 2005

Appl. No.:

11/155452

Inventors:

Joo T. Chung - Webster NY, US
Chieh-Min Cheng - Rochester NY, US
Hui Chang - Pittsford NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 9/08

US Classification:

43013714

Abstract:

Processes for continuously forming latex emulsions and preparing toners with said emulsions are provided.

US Patent:

7537874, May 26, 2009

Filed:

Feb 21, 2006

Appl. No.:

11/359137

Inventors:

Mark E. Mang - Rochester NY, US
Hui Chang - Pittsford NY, US
Michael L. Grande - Palmyra NY, US
Gary A. Minagawa - Fairport NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 9/083

US Classification:

4301062, 43011141

Abstract:

A toner having a high strength magnetite in an amount of from about 10 to about 40 weight percent, wherein the magnetite includes a material selected from the group consisting of FeO, FeO, FeO, gamma iron oxides, cobalt-gamma iron oxides, and mixtures thereof, and further including a developer having a carrier and toner as just described.