John S Locke

US Patent:

6742869, Jun 1, 2004

Filed:

Oct 4, 2002

Appl. No.:

10/264859

Inventors:

Martin E. Redding - Avondale PA
John Stephen Locke - Hockessin DE
Robert Clifton Strum - West Chester PA
Tony Z. Liang - Sewell NJ
Michael Lee Rudolph - Newark DE
Waifong Liew Anton - Wilmington DE
Hisanori Omura - Landenburg PA

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

H04N 146

US Classification:

347 43, 358502

Abstract:

A system and method are disclosed for ink jet printing of wide format substrates such as textiles in a manner to simulate screen printing, in which image data in one or more acceptable formats is input, transformed into a suitable L*a*b* file format, further converted into a driver format for a printer, then communicated to such printer. Optionally, the color gamut of the image in the L*a*b* file format is checked against an estimated screen gamut of a screen printer, and limited to the estimated screen gamut as required.

US Patent:

7211129, May 1, 2007

Filed:

Jul 1, 2005

Appl. No.:

11/173595

Inventors:

James Walter Wheeler - West Chester PA, US
John Stephen Locke - Hockessin DE, US
Samit N. Chevli - Hockessin DE, US
Sandra Laurine Issler - Newark DE, US
Alicia Marie Walsh - Wilimingon DE, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C09D 11/02
B41J 2/01

US Classification:

106 3127, 347100

Abstract:

The present invention pertains to a dye-based inkjet ink set and, more particularly, to a dye-based inkjet ink set suitable for printing on polyamide fabric. The present invention also pertains to a method for printing a polyamide fabric with the dye-based inkjet ink set, and a polyamide fabric so printed.

US Patent:

7233413, Jun 19, 2007

Filed:

Nov 22, 2002

Appl. No.:

10/301952

Inventors:

David Edward Jones - Newark DE, US
John Stephen Locke - Hockessin DE, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

G06F 15/00
G03F 3/08

US Classification:

358 19, 358520

Abstract:

This invention pertains to a computer-implemented method and program for the comparison of color gamuts. Using first and second collections of sample color points respective hulls are created in a color space. The set of all of the points disposed on the surface of the a hull or within the volume enclosed thereby represents the respective color gamut. The hulls are combined, preferably by a Boolean operation, to create a third hull in the color space representing at least one region of overlap or at least one region of exclusion between the first color gamut and the second color gamut. The volume of at least one of the hulls may be calculated and compared to the volume of the region of overlap and/or the region of exclusion. A visual display of the contour produced by the intersection of one or both of the hulls with a plane perpendicular to a predetermined reference line in the color space may be created to ascertain qualitatively the degree of alignment of the first and second hulls along the reference line. The determination of whether a given color point lies within a hull may also be made.

US Patent:

7282089, Oct 16, 2007

Filed:

Nov 4, 2005

Appl. No.:

11/267464

Inventors:

James Walter Wheeler - West Chester PA, US
John Stephen Locke - Hockessin DE, US
Samit N. Chevli - Hockessin DE, US
Sandra Laurine Issler - Newark DE, US
Alicia Marie Walsh - Wilmington DE, US

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C09D 11/02
B41J 2/01

US Classification:

106 3127, 347100

Abstract:

The present invention pertains to a dye-based inkjet ink set and, more particularly, to a dye-based inkjet ink set suitable for printing on polyamide fabric.

US Patent:

7449055, Nov 11, 2008

Filed:

Aug 2, 2007

Appl. No.:

11/888818

Inventors:

John C. Hornby - Newark DE, US
Kuo Hsiung Kung - Wilmington DE, US
John Stephen Locke - Hockessin DE, US
James Walter Wheeler - West Chester PA, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C09D 11/02
B41J 2/01
B32B 3/10

US Classification:

106 3127, 347100, 4281951

Abstract:

The present invention pertains to a dye-based inkjet ink set with a lightfast cyan ink and, more particularly, to a dye-based inkjet ink set suitable for printing on fabrics, especially polyamide fabric. The present invention also pertains to a method for printing a polyamide fabric with the dye-based inkjet ink set, and a polyamide fabric so printed.

US Patent:

20040196346, Oct 7, 2004

Filed:

Apr 27, 2004

Appl. No.:

10/832590

Inventors:

Martin Redding - Avondale PA, US
John Locke - Hockessin DE, US
Robert Strum - West Chester PA, US
Tony Liang - Sewell NJ, US
Michael Rudolph - Newark DE, US
Walfong Anton - Wilmington DE, US
Hisanori Omura - Landenburg PA, US

International Classification:

G01D011/00

US Classification:

347/100000

Abstract:

This invention pertains to ink jet printing and more particularly to ink jet printing of wide format substrates such as textiles, and to inks and inks sets suitable for use in such printing.

US Patent:

20040196347, Oct 7, 2004

Filed:

Apr 27, 2004

Appl. No.:

10/832591

Inventors:

Martin Redding - Avondale PA, US
John Locke - Hockessin DE, US
Robert Strum - West Chester PA, US
Tony Liang - Sewell NJ, US
Michael Rudolph - Newark DE, US
Waifong Anton - Wilmington DE, US
Hisanori Omura - Landenburg PA, US

International Classification:

G01D011/00

US Classification:

347/100000

Abstract:

This invention pertains to ink jet printing and more particularly to ink jet printing of wide format substrates such as textiles, and to inks and inks sets suitable for use in such printing.

US Patent:

20130255513, Oct 3, 2013

Filed:

Mar 7, 2013

Appl. No.:

13/788589

Inventors:

John Stephen Locke - Hockessin DE, US
Chi W. Chiu - Freehold NJ, US

Assignee:

E I DU PONT DE NEMOURS AND COMPANY - Wilmington DE

International Classification:

G03F 7/12

US Classification:

101395, 430306, 4302701

Abstract:

The invention pertains to a printing form precursor, a method of preparing a printing form from the precursor, and a process of preparing the precursor. The printing form precursor includes a photopolymerizable layer, an elastomeric layer having at least an elastomeric binder and particulate, and an actinic radiation opaque material on, adjacent, or disposed above the elastomeric layer opposite the photopolymerizable layer. The particulate is selected from specific material particles having an average diameter from 1 to 10 micron and a refractive index that is within 0.04 units of an index of refraction of the composition forming the elastomeric layer.