Leonard J Stulc

6342324, Jan 29, 2002

Feb 16, 2000

09/504461

Minyu Li - Oakdale MN
M. Zaki Ali - Mendota Heights MN
Eric D. Morrison - St. Paul MN
Charles W. Simpson - Lakeland MN
Leonard J. Stulc - Shafer MN
Ramnath Subramaniam - St. Paul MN
Jiayi Zhu - Woodbury MN

Imation Corp. - Oakdale MN

G03G 5147

430 67, 430 66, 430132

Release compositions include (a) from zero to about 30 parts by weight of a polymer selected from the group consisting of wherein R , R , R , R , R , R , R , and R are each independently selected from an alkyl group, an alkenyl group, an aryl group, and an aralkyl group, such that at least one of R and R is an alkenyl group, l, m, and n are each independently an integer so long as the polymer contains greater than 3 mol % vinyl-containing siloxane groups; a (vinyl siloxy)(siloxy)-modified silica having a vinyl content of at least about 0. 4 vinyl equivalent/kg; and a combination thereof; (b) more than about 20 parts by weight of a polymer having the formula wherein R , R , R , R , R , R , R , and R are each independently selected from an alkyl group, an alkenyl group, an aryl group, and an aralkyl group, such that at least two of R , R , R , R , R , R , R , and R are alkenyl groups, p, q, and r are each independently integers so long as the polymer has less than 3 mol % vinyl-containing siloxane groups; and (c) up to about 20 parts by weight of a cross-linking agent of the formula wherein R , R , R , R , R , and R are each independently selected from hydrogen, an alkyl group, an aryl group, and an aralkyl group, X is O, or a divalent organic linking group, and s and t are independently integers so long as there are at least two functional groups capable of cross-linking per molecule.

6832064, Dec 14, 2004

Dec 10, 2001

10/013635

Charles W. Simpson - Lakeland MN
Leonard J. Stulc - Shafer MN

Samsung Electronics Co., Ltd. - Suwon

G03G 1511

399249, 428421, 428447, 4273855, 427387

A drying belt for electrophotographic imaging process comprising: (a) a seamless substrate; and (b) an absorbent layer on the seamless substrate wherein the absorbent layer comprising an absorbing material for carrier liquid of an electrophotographic toner.

6887558, May 3, 2005

Oct 31, 2002

10/284930

Charles W. Simpson - Lakeland MN, US
Leonard J. Stulc - Shafer MN, US

Samsung Electronics Co., Ltd. - Suwon

B32B027/14
B32B003/00

4281951, 428421, 428447

This invention related to an intermediate transfer member for electrophotography that includes a substrate; and a polymeric layer on said substrate wherein the polymeric layer comprises an organic titanate and a polymer selected from the group consisting of fluorosilicone, silicone, and a combination thereof.

7018768, Mar 28, 2006

Jun 30, 2003

10/612443

Leonard J. Stulc - Shafer MN, US
Julie Y. Qian - Woodbury MN, US
James A. Baker - Hudson WI, US

Samsung Electronics Company - Suwon

G03G 9/13

430114, 43013715, 43013722

Amphipathic copolymers are provided comprising one or more S portions and one or more D portions. The copolymers have a chromophore covalently bonded thereto via a urethane, urea or amide linkage. These copolymers provide exceptionally useful components in toner compositions, because they provide easily prepared color-imparting particles that provide excellent color rendition.

7018769, Mar 28, 2006

Sep 30, 2003

10/676142

Leonard J. Stulc - Shafer MN, US

Samsung Electronics Company - Suwon

G03G 9/12

430114, 430117, 43013722

Liquid electrographic toner compositions are provided comprising a liquid carrier having a Kauri-Butanol number less than about 30 mL and a plurality of toner particles dispersed in the liquid carrier. The toner particles comprise polymeric binder and a pigment comprising a first ionic dye component ionically complexed with a second ionic dye component in a predetermined ratio to form an ionically complexed colorant compound exhibiting a predetermined color. The colorant compound has a molecular weight of less than about 5000 Daltons and is substantially free of metals that are not covalently bonded to the colorant compound. Toners comprising pigments comprising a ionic dye component and a second ionic dye component complexed to form ionically complexed compounds that together in a colorant composition exhibit a predetermined color are also provided. Methods of making and using these toners are disclosed.

7106997, Sep 12, 2006

Oct 16, 2003

10/686930

Leonard Stulc - Shafer MN, US
Truman Frank Kellie - Lakeland MN, US

Samsung Electronics Co., Ltd. - Suwon

G03G 15/01

399302, 399308

An electrophotographic imaging apparatus having a first toner accepting layer and an intermediate transfer member. The first toner accepting layer is positioned in electrical contact with a) a charge provider, b) an irradiation source that activates photoconductivity in the first toner accepting layer, and b) at least one toner applicator, so that a first toner image can be formed on the first toner accepting layer. The first toner layer is movable, after interaction with a), b) and c), into contact with the intermediate transfer layer from which the first toner image can be transferred to an image bearing member. The intermediate transfer member comprises a non-conductive flexible film layer, a layer of an electrically conductive material affixed to a first surface of the non-conductive flexible film layer and segmented into electrically isolated regions or zones, and the electrically conductive material layer has an electrically resistive polymeric coating thereon.

20040086305, May 6, 2004

Aug 21, 2003

10/644655

Leonard Stulc - Shafer MN, US
Truman Kellie - Lakeland MN, US
Charles Simpson - Lakeland MN, US
Jiayi Zhu - Woodbury MN, US
A. Fordahl - Hopkins MN, US

SAMSUNG Electronics Co. Ltd.

G03G015/16

399/308000

An electrophotographic imaging apparatus has a first toner accepting layer and an intermediate transfer member. The first toner accepting layer is positioned in electrical contact with a) a charge provider, b) an irradiation source that activates photoconductivity in the first toner accepting layer, and b) at least one toner applicator, so that a first toner image can be formed on the first toner accepting layer. The first toner layer is movable (after interaction with a), b) and c)) into contact with the intermediate transfer layer from which the first toner image can be transferred to an image bearing member. The intermediate transfer member comprises a non-conductive flexible film layer, a layer of an electrically conductive material affixed to a first surface of the non-conductive flexible film layer, and the electrically conductive material layer has an electrically resistive polymeric coating thereon.

20050066454, Mar 31, 2005

Sep 30, 2003

10/676323

Leonard Stulc - Shafer MN, US

C09B001/00

008638000

Black colorant compounds comprise a first ionic dye component having a known color characteristic that absorbs light in at least a portion of the visible light spectrum and a second ionic dye component having a known color characteristic that absorbs light in at least a portion of the visible light spectrum that is not absorbed by the first ionic dye component. The first ionic dye component and the second ionic dye component are complexed together to form an ionically complexed colorant compound that appears black in color. Alternatively, compositions comprise ionically complexed compounds containing a plurality of dye components, where the compounds together in a colorant composition appear black in color.