Brian C Willett

US Patent:

6368779, Apr 9, 2002

Filed:

Sep 21, 2000

Appl. No.:

09/667748

Inventors:

Doreen C. Lynch - Afton MN
Sharon M. Simpson - Lake Elmo MN
Steven M. Shor - Woodbury MN
Brian C. Willett - Stillwater MN
Chaofeng Zou - Maplewood MN

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1498

US Classification:

430350, 430510, 430517, 430527, 430600, 430603, 430611, 430613, 430944

Abstract:

Photothermographic materials have increased photospeed provided by certain organic solvent-soluble thiourea compounds that can be represented by the following Structure I, II, or III: wherein in Structure I, R , R , R and R are independently alkyl, cycloalkyl, allyl, alkenyl, alkynyl, aryl or heterocyclic groups, or R and R taken together, R and R taken together, R and R taken together or R and R taken together, can form a 5- to 7-membered heterocyclic ring, in Structure II, R , R , R , R and R are independently alkyl, cycloalkyl, allyl, alkenyl, alkynyl, aryl or heterocyclic groups, or R and R taken together, R and R taken together, R and R taken together or R and R taken together, can form a substituted or unsubstituted 5- to 7-membered heterocyclic ring, and in Structure III, R , R , R , R , R , and R are independently alkyl, cycloalkyl, allyl, alkenyl, alkynyl, aryl or heterocyclic groups, or R and R taken together, R and R taken together, R and R taken together, R and R taken together, or R and R taken together, can form a substituted or unsubstituted 5- to 7-membered heterocyclic ring, and R is a divalent aliphatic or alicyclic linking group. In addition, the speed increasing compounds represented by Structure I do not require a heat activation step at 30Â C. or higher temperature for at least 5 minutes and have a pKa of at least 7.

US Patent:

6699647, Mar 2, 2004

Filed:

Oct 11, 2001

Appl. No.:

09/975909

Inventors:

Doreen C. Lynch - Afton MN
Andrea L. Opatz - Woodbury MN
Steven M. Shor - Brussels, BE
Sharon M. Simpson - Lake Elmo MN
Brian C. Willett - Stillwater MN
Henry J. Gysling - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1498

US Classification:

430350, 430264, 430600, 430603, 430613, 430619, 430964, 430965

Abstract:

Photothermographic imaging materials having increased photospeed are provided by certain tellurium chemical sensitizers that are added during the formulation of a photothermographic emulsion. These useful chemical sensitizers are represented by the following Structure I or II: wherein X and X independently represent halo, OCN, SCN, S(C S)N(R )(R ), S(C S)OR , S(C S)SR , S(P S)(OR )(OR ) , S(P S)(R )(R ), SeCN, TeCN, CN, SR , OR , N , alkyl, aryl, or O(C O)R groups, R and R are an alkyl, alkenyl, cycloalkyl, heterocycyl, or aryl group, or R and R taken together can form a 5-, 6- or 7-membered heterocyclic ring, L is a ligand derived from a neutral Lewis base, Râ is an alkyl or aryl group, m is 0, 1, 2, or 4, and n is 2 or 4 provided that when m is 0 or 2, n is 2 or 4, and when m is 1 or 4, n is 2, and further provided that multiple X , X , L, R , R , or Râ groups in the molecule can be the same or different groups.

US Patent:

20140262454, Sep 18, 2014

Filed:

Feb 18, 2014

Appl. No.:

14/182387

Inventors:

- Rochester NY, US
Brian C. Willett - Stillwater MN, US

International Classification:

H05K 1/03
H05K 1/02
H01B 13/00

US Classification:

174255, 427108, 977932, 977890

Abstract:

Zinc salts have been found to provide anticorrosion properties when incorporated into silver nanowire containing films. Such salts may be incorporated into one of more silver nanowire containing layers or in one or more layers disposed adjacent to the silver nanowire containing layers.