Patents by Inventor Philip A. Allway
Philip A. Allway has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7455959Abstract: The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless imidazole compound of formula (I) that undergoes less than 10% chemical or redox reaction with oxidized developer and which enables the photographic speed of the element to be increased by at least 0.Type: GrantFiled: October 1, 2004Date of Patent: November 25, 2008Assignee: Eastman Kodak CompanyInventors: Bernard A. Clark, Philip A. Allway, Tania Zuberi, Stephen P. Singer, Charles E. Heckler, Louis E. Friedrich
-
Publication number: 20080248433Abstract: The invention provides a colour photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colourless imidazole compound of formula (I) that undergoes less than 10% chemical or redox reaction directly with oxidized developer and which has a partition coefficient to enable the photographic speed of the element to be increased by at least 0.Type: ApplicationFiled: October 1, 2004Publication date: October 9, 2008Inventors: Bernard A. Clark, Philip A. Allway, Tania Zuberi, Stephen P. Singer, Charles E. Heckler, Louis E. Friedrich
-
Patent number: 7354701Abstract: The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless heterocyclic compound having either one or two hetero atoms in the ring or ring system, being other than an imidazole compound, that undergoes less than 10% chemical or redox reaction directly with oxidized developer and which has a partition coefficient to enable the photographic speed of the element to be increased by at least 0.03 stop without increasing granularity, compared to the same element without the compound. The heterocyclic compounds increase speed without a concomitant increase in size of the light-sensitive silver halide grains.Type: GrantFiled: October 1, 2004Date of Patent: April 8, 2008Assignee: Eastman Kodak CompanyInventors: Bernard A. Clark, Philip A. Allway, Tania Zuberi, Stephen P. Singer, Charles E. Heckler, Louis E. Friedrich
-
Publication number: 20070128560Abstract: The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless heterocyclic compound having either one or two hetero atoms in the ring or ring system, being other than an imidazole compound, that undergoes less than 10% chemical or redox reaction directly with oxidized developer and which has a partition coefficient to enable the photographic speed of the element to be increased by at least 0.03 stop without increasing granularity, compared to the same element without the compound. The heterocyclic compounds increase speed without a concomitant increase in size of the light-sensitive silver halide grains.Type: ApplicationFiled: October 1, 2004Publication date: June 7, 2007Inventors: Bernard Clark, Philip Allway, Tania Zuberi, Stephen Singer, Charles Heckler, Louis Friedrich
-
Patent number: 7108964Abstract: The invention relates to a novel kind of anthranilic acid compound that releases a UG as a function of chemical bond cleavage according to Formula (I): Q-(AAS)-UG where UG is an useful group and is chemically bonded to (AAS); (AAS) is an anthranilic acid switching group; and Q is a group in which the bond to (AAS) is broken so that the -(AAS)-UG fragment subsequently decomposes to the free UG.Type: GrantFiled: August 5, 2005Date of Patent: September 19, 2006Assignee: Eastman Kodak CompanyInventors: Stephen P. Singer, Philip A. Allway, Trevor J. Wear, Louis E. Friedrich, Siu (Lambert) C. Tsoi, Bernard A. Clark, Paul L. Stanley
-
Publication number: 20060051710Abstract: The invention relates to a novel kind of anthranilic acid compound that releases a UG as a function of chemical bond cleavage according to Formula (I): Q-(AAS)-UG where UG is an useful group and is chemically bonded to (AAS); (AAS) is an anthranilic acid switching group; and Q is a group in which the bond to (AAS) is broken so that the -(AAS)-UG fragment subsequently decomposes to the free UG.Type: ApplicationFiled: August 5, 2005Publication date: March 9, 2006Inventors: Stephen Singer, Philip Allway, Trevor Wear, Louis Friedrich, Siu (Lambert) Tsoi, Bernard Clark, Paul Stanley
-
Patent number: 6887656Abstract: Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer containing a compound that does not react with oxidized developer, has a Log Kow high enough to improve speed, compared to the same layer without the compound, and comprises (1) a thiadiazole, or (2) an oxadiazole, or (3) a 1,2,4 triazole bearing an amido substituent, and does not contain a hydroxyl or thiol group or their tautomeric equivalents on the azole ring.Type: GrantFiled: January 17, 2003Date of Patent: May 3, 2005Assignee: Eastman Kodak CompanyInventors: Louis E. Friedrich, Philip A. Allway, Judith A. Bogie, Bernard A. Clark, Charles E. Heckler, Stephen P. Singer
-
Publication number: 20040142289Abstract: Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer containing a compound that does not react with oxidized developer, has a Log Kow high enough to improve speed, compared to the same layer without the compound, and comprisesType: ApplicationFiled: January 17, 2003Publication date: July 22, 2004Inventors: Louis E. Friedrich, Philip A. Allway, Judith A. Bogie, Bernard A. Clark, Charles E. Heckler, Stephen P. Singer
-
Patent number: 6730465Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith a heterocyclic magenta or cyan dye-forming coupler of formula (I), wherein HET is a heterocyclic coupler comprising at least two fused rings and having at least one bridgehead nitrogen atom; S is bonded to a position of HET capable of releasing the heterocyclylthio moiety from HET upon reaction with oxidized developer; X is a heteroatom selected from nitrogen, oxygen and sulfur, bonded to the carbon atom bearing the exocyclic S and to other ring atoms only; and Z are the atoms necessary to complete an unsubstituted or substituted heterocyclic ring or ring system, which may contain one or more other heteroatoms selected from nitrogen, oxygen and sulfur; provided also that the heterocyclylthio moiety released upon reaction with oxidized developer does not significantly inhibit silver development nor cause a bleach acceleration effect.Type: GrantFiled: March 10, 2003Date of Patent: May 4, 2004Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Paul L. Stanley
-
Publication number: 20030207219Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith a heterocyclic magenta or cyan dye-forming coupler of formula (I), 1Type: ApplicationFiled: March 10, 2003Publication date: November 6, 2003Inventors: Philip A. Allway, Paul L. Stanley
-
Patent number: 6589724Abstract: Disclosed is color silver halide photographic element comprising a light-sensitive silver halide emulsion layer or a non-silver containing light-insensitive layer, said light-sensitive or light-insensitive layer containing a polymer compound comprising a repeating benzotriazole subunit wherein a) the benzotriazole monomer corresponding to the benzotriazole subunit has a Calculated logP of at least 3.1 and less than 6.2; or b) the benzotriazole monomer corresponding to the benzotriazole subunit has a Calculated logP of less than 3.1 and the polymer additionally comprises a co-monomer with Calculated logP of 0.5 or greater, and the amount of the polymer compound in the element is sufficient to increase the photographic speed of the element compared to the same element without the polymer compound.Type: GrantFiled: October 24, 2001Date of Patent: July 8, 2003Assignee: Eastman Kodak CompanyInventors: Stephen P. Singer, David S. Ross, Bernard A. Clark, Philip A. Allway, David B. Bailey, Louis E. Friedrich
-
Patent number: 6455242Abstract: Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.Type: GrantFiled: September 18, 2001Date of Patent: September 24, 2002Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Bernard A. Clark, John D. Goddard, Louis E. Friedrich, James A. Friday, Stephen P. Singer, Marcello Vitale
-
Publication number: 20020042033Abstract: Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.Type: ApplicationFiled: September 18, 2001Publication date: April 11, 2002Inventors: Philip A. Allway, Bernard A. Clark, John D. Goddard, Louis E. Friedrich, James A. Friday, Stephen P. Singer, Marcello Vitale
-
Patent number: 6319660Abstract: Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.Type: GrantFiled: July 21, 1999Date of Patent: November 20, 2001Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Bernard A. Clark, John D. Goddard, Louis E. Friedrich, James A. Friday, Stephen P. Singer, Marcello Vitale
-
Patent number: 6316177Abstract: Disclosed is a color silver halide photographic element comprising a light-sensitive silver halide emulsion layer or a non-silver containing light-insensitive layer, said light-sensitive or light-insensitive layer containing a polymer compound comprising a heterocycle unit derived from: (a) a heterocycle monomer (1) comprising two or more annulated rings containing, in total, a minimum of three ring heteroatoms of which no more than two of the heteroatoms are connected in sequence to each other and (2) having a ClogP less than 6.2; or (b) a monocyclic heterocycle monomer having exactly three ring heteroatoms and having a ClogP less than 8.75; with the proviso that the heterocycle unit does not contain a hydroxy or mercapto group (or their tautomeric equivalent), and does not react with oxidized developer; and the amount of the polymer compound in the element being sufficient to increase the photographic speed of the element compared to the same element without the compound.Type: GrantFiled: March 31, 2000Date of Patent: November 13, 2001Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Tienteh Chen, David S. Ross, Stephen P. Singer
-
Patent number: 6309811Abstract: Disclosed is a color photographic element comprising: a) a first light sensitive silver halide emulsion layer containing a compound with an aromatic bicyclic nitrogen nucleus of which at least one ring is six-membered and with two nitrogen ring atoms in each ring and with at least one N—H bond provided that the ClogP for the compound is at least 2.0 and less than 7.2; and (b) a second light sensitive silver halide emulsion layer, having a spectral sensitivity different from that of the first light sensitive silver halide emulsion layer, containing a compound of Formula III: COUP-(TIME)j-INH III wherein: COUP is a coupler parent group capable of forming a dye upon reaction with an oxidized developer; TIME is a timing group and j is 0,1 or 2; and INH is a mild silver development inhibitor fragment. The invention provides improved color reproduction.Type: GrantFiled: July 21, 1999Date of Patent: October 30, 2001Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Louis E. Friedrich, Stephen P. Singer
-
Publication number: 20010010895Abstract: Disclosed is a color photographic element comprising:Type: ApplicationFiled: July 21, 1999Publication date: August 2, 2001Inventors: PHILIP A. ALLWAY, LOUIS E. FRIEDRICH, STEPHEN P. SINGER
-
Patent number: 6238855Abstract: A photographic element comprising a support bearing one or more silver halide emulsions at least one of which comprises at least 50% silver chloride in association with one or more image dye-forming couplers and one or more DI(A)R couplers of formulae I or II: wherein: TIME is a timing group and R1, R2, Z, n, and j are as defined in the specification, wherein the DI(A)R coupler(s) in association with an emulsion comprising at least 50% silver chloride comprise at least about 25% to about 90% of the total amount of coupler in association with that emulsion and the total amount of coupler is the sum of the number of moles of image coupler(s) and the number of moles of the DI(A)R couplers in association with that emulsion.Type: GrantFiled: December 20, 1999Date of Patent: May 29, 2001Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Christina M. Watts, Paul L. Stanley
-
Patent number: 6197488Abstract: Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith a coupler according to Formula I: COUP—(TIME)n—HSM (I) wherein: COUP is an organic fragment which reacts with oxidized developer to release—(TIME)n—HSM, TIME is an optional timing group or linking group which connects HSM to COUP at the site of reaction with oxidized developer, n=0,1 or 2, and HSM is a compound having a minimum of three heteroatoms and having a ClogP sufficient to increase the speed of said element compared to the same element without the coupler. The invention provides improved light sensitivity without significant adverse effect on granularity or ease of manufacture.Type: GrantFiled: July 21, 1999Date of Patent: March 6, 2001Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Bernard A. Clark, Louis E. Friedrich, Stephen P. Singer
-
Patent number: 6171771Abstract: This invention comprises a photographic element having a support bearing one or more silver halide emulsions and one or more DIR couplers of structure I or II below: wherein: Z is a moiety which can react with oxidized developer to release a coupling-off group; R1 is a hydrogen atom or a substituent selected from the group consisting of halogen atom, alkyl, aryl, alkoxy, alkylthio, arylthio, amino, alkylamino, arylamino, carbonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, aryloxy, arylcarbonyl, alkylcarbonyl, sulphonyl and sulphonamido groups; each of the R2 substituents is a halogen atom or a substituent selected from the group consisting of alkyl, aryl, alkoxy, alkylthio, arylthio, amino, alkylamino, arylamino, carbonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, aryloxy, arylcarbonyl, alkylcarbonyl, sulphonyl and sulphonamido groups; X represents the atoms required to make a second ring which is aromatic and contains at least one nitrogen atom; and n is between 0 and the numType: GrantFiled: March 25, 1997Date of Patent: January 9, 2001Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Philip A. Allway, David A. Steele, Jerrold N. Poslusny