Patents by Inventor Donald R. Diehl
Donald R. Diehl 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).
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Patent number: 5962211Abstract: The invention relates to a photographic element comprising at least one absorber dye and at least one sensitizing dye wherein the peak sensitivity of said absorber dye and said sensitizing dye are similar. This provides improved perceptual red detail in regions of high red density in the negative image.Type: GrantFiled: October 3, 1997Date of Patent: October 5, 1999Assignee: Eastman Kodak CompanyInventors: Roupen H. Maronian, Donald R. Diehl, Pamela M. Ferguson
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Patent number: 5683860Abstract: A silver halide light sensitive photographic element comprising a support bearing on one side thereof at least one light-sensitive silver halide emulsion layer, wherein the emulsion layer or a separate hydrophilic colloid layer of the element comprises a soluble absorber dye of the following formula (I): ##STR1## wherein each M is H or a counterion; each R.sup.1 and R.sup.2 independently represents H or a photographically acceptable substituent; m+p equals from 1 to 4; n+q equals from 1 to 4; and each of r and t represents from 0 to 3. In preferred embodiments of the invention, the element comprises at least one red-sensitive silver halide emulsion layer, and a dye of formula (I) is coated on the same side of the support as the red-sensitive emulsion layer.Type: GrantFiled: December 18, 1996Date of Patent: November 4, 1997Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Linda J. Beattie, Gary N. Barber
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Patent number: 5635343Abstract: A substantially inert ultraviolet absorbing compound, and photographic elements containing them, which compound has a peak absorption at less than 400 nm and being of formula (I): ##STR1## wherein: X is O or NR.sub.8, Z represents the atoms necessary to complete a 5-membered or 6-membered heterocyclic ring which includes X and N, and the 3-position of the pyrazolone ring may independently be substituted or unsubstituted;R.sub.5 is alkyl, alkenyl, or arylalkyl any of which may be substituted or unsubstituted, or R.sub.5 may form a ring with a 3-position substituent on the pyrazolone ring or a 4-position substituent on the benzo ring;R.sub.7 is alkyl, alkenyl, aryl, or heterocycle, any of which may be substituted or unsubstituted, or H; andR.sub.8 is alkyl, alkenyl, or arylalkyl any of which may be substituted or unsubstituted, or H.Type: GrantFiled: August 28, 1995Date of Patent: June 3, 1997Assignee: Eastman Kodak CompanyInventors: Donald P. Specht, Donald R. Diehl
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Patent number: 5470695Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## wherein D is selected from the group consisting of ##STR2## are disclosed as filter dyes for photographic elements. In this formula, R.sup.1, R.sup.2, and R.sup.3 are each independently hydrogen, substituted or unsubstituted alkyl, or substituted or unsubstituted alkoxy. At least one of R.sup.1, R.sup.2 and R.sup.3 is substituted or unsubstituted alkoxy, or two of R.sup.1, R.sup.2 and R.sup.3 together consist of --O--L--O-- and form a ring condensed with the phenyl ring to which they are attached wherein L is an alkylene linking group. R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are each independently hydrogen, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl. R is a carboxy or sulfonamido substituent, and L.sup.1, L.sup.2 and L.sup.3 are each independently substituted or unsubstituted methine groups.Type: GrantFiled: August 12, 1994Date of Patent: November 28, 1995Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Glenn M. Brown
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Patent number: 5466813Abstract: Imine dyes useful in photographic materials have the formula ##STR1## wherein R.sup.1, E.sup.1, E.sup.2, L.sup.1, L.sup.2, L.sup.3,D and m are defined as in the specification.Solid particle dispersions of dyes of formula (I) that contain at least one base-ionizable functional group such as carboxy, sulfonamido, or sulfamoyl are useful as filter dyes in photographic elements.Type: GrantFiled: July 20, 1993Date of Patent: November 14, 1995Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Margaret J. Helber, Hugh Williamson
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Patent number: 5464736Abstract: A photographic element having a silver halide emulsion sensitized by dye of the formula I: ##STR1## wherein: R.sup.1 represents a substituted or unsubstituted aromatic or heteroaromatic group, a substituted or unsubstituted alkyl or H;R.sup.2 represents a substituted or unsubstituted alkyl, alkenyl, aryl, aralkyl, or H;E.sup.1 represents an electron withdrawing group;Z represents the non-metallic atoms required to complete a substituted or unsubstituted ring system containing at least one 5- or 6-membered heterocyclic nucleus;L.sup.1, L.sup.2, L.sup.5 and L.sup.6 independently represent a substituted or unsubstituted methine;m may be 0, 1, 2 or 3;n may be 0 or 1.Type: GrantFiled: April 28, 1994Date of Patent: November 7, 1995Assignee: Eastman Kodak CompanyInventors: Margaret J. Helber, Thomas R. Dobles, Donald R. Diehl, Heidi E. Dankosh, John D. Mee
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Patent number: 5451494Abstract: A photographic element containing a dye of the structure (I) as a filter dye: ##STR1## wherein: G is oxygen, substituted nitrogen, or C(CN).sub.2 ;R.sup.1, R.sup.1 ', R.sup.2, R.sup.2 ' independently represent H or a substituent, or R.sup.1 and R.sup.2, R.sup.1 ' and R.sup.2 ' may form a ring;R.sup.3 is an alky, aryl, alkyloxy, aryloxy, amino, or heterocyclic, any of which may be substituted or unsubstituted;m is 0, 1, 2 or 3;all of the L together define a methine chain, each L representing a methine any of which may be substituted or unsubstituted; andM.sup.+ is a cation.Type: GrantFiled: July 22, 1994Date of Patent: September 19, 1995Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Margaret J. Helber, Pamela M. Ferguson, Anne E. Edwards, Nona V. Spitzner
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Patent number: 5399690Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## wherein D is selected from the group consisting of ##STR2## and ketomethylene nuclei are disclosed as filter dyes for photographic elements.In this formula, E.sup.1 and E.sup.2 are each independently electron withdrawing groups. R.sup.1 and R.sup.6 are each independently R or NHR, where R is aryl. R.sup.2 and R.sup.3 are each independently alkyl or aryl, or represent the carbon atoms necessary to form a fused ring with the phenyl ring to which the N atom is attached. R.sup.4 and R.sup.7 are each independently hydrogen, alkyl or aryl. R.sup.5 is alkyl. Z represents the atoms necessary to complete a 5 or 6 memebered heterocyclic nucleus. M.sup.+ is a cation. L.sup.1 through L.sup.7 are each independently methine groups. m is 0, 1, 2, or 3. n is 0 or 1. p is 0, 1, 2, 3, or 4. q is 0, 1, 2, or 3. At least one of R.sup.1 or D includes an aryl ring substituted with a carboxy or sulfonamido substituent.Type: GrantFiled: February 10, 1993Date of Patent: March 21, 1995Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Glenn M. Brown, Margaret J. Helber
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Patent number: 5283165Abstract: Pyrrolinone dyes, and photographic materials containing them, which dyes have the formula: ##STR1## wherein; E.sup.1 represents an electron withdrawing group;R.sup.1 represents an aryl group of 6 to 14 carbon atoms or an alkyl group of from 1 to 12 carbon atoms;R.sup.2 represents an alkyl or alkylthio group of 1 to 20 carbon atoms, or an alkenyl group of 2 to 20 carbon atoms, or an aryl, aralkyl, heterocyclic or cycloalkyl group any of which have 5 to 14 carbon atoms, or R2 represents a hydroxy, cyano, chloro, nitro or hydrogen;M.sup.+ is a cation;each L represents a methine group;m is 0, 1, 2, or 3; and D is a moiety in conjugation with the oxygen of the pyrollinone ring.The dyes are particularly useful as solid particle filter dye dispersions in photographic elements.Type: GrantFiled: December 23, 1992Date of Patent: February 1, 1994Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Margaret J. Helber, Louis J. Rossi
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Patent number: 5266454Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## wherein D is selected from the group consisting of ##STR2## are disclosed as filter dyes for photographic elements. In this formula, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently hydrogen, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl. R is a carboxy or sulfonamido substituent. L.sup.1 through L.sup.5 are each independently substituted or unsubstituted methine groups, and m is 0 or 1. The dyes of the invention are particularly useful as filter dyes for light in the ultraviolet and short blue wavelength regions of the spectrum.Type: GrantFiled: March 1, 1993Date of Patent: November 30, 1993Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Glenn M. Brown
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Patent number: 5260179Abstract: Imine dyes useful in photographic materials have the formula ##STR1## wherein D is selected from ##STR2## and wherein E.sup.1, E.sup.2, E.sup.3, and E.sup.4 each individually represents strongly electron-withdrawing groups; R.sup.1 and R.sup.6 each individually represents an alkyl group of 1 to about 8 carbon atoms, or an aralkyl or cycloalkyl group of 5 to about 10 carbon atoms, or an aryl group of 6 to about 14 carbon atoms; R.sup.2, R.sup.3, and R.sup.11 each individually represents an alkyl group of 1 to about 8 carbon atoms, or an alkenyl group of 2 to about 8 carbon atoms, or an aryl, aralkyl, or cycloalkyl group of 5 to about 14 carbon atoms; or R.sup.2 and R.sup.3 individually represent the non-metallic atoms necessary to form a 5- or 6-membered fused ring with the phenyl ring to which the nitrogen is attached, or together represent the non-metallic atoms required to form a 5- or 6-membered ring with each other; R.sup.4, R.sup.7, R.sup.8, R.sup.9, and R.sup.Type: GrantFiled: September 16, 1992Date of Patent: November 9, 1993Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Margaret J. Helber, Hugh Williamson
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Patent number: 5213956Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## wherein D is selected from the group consisting of ##STR2## and ketomethylene nuclei are disclosed as filter dyes for photographic elements.In this formula, E.sup.1 and E.sup.2 are each independently electron withdrawing groups R.sup.1 and R.sup.6 are each independently R or NHR, where R is substituted or unsubstituted aryl. R.sup.2 and R.sup.3 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or represent the carbon atoms necessary to form a fused ring with the phenyl ring to which the N atom is attached. R.sup.4 and R.sup.7 are each independently hydrogen, substituted or unsubstituted alkyl or substituted or unsubstituted aryl. R.sup.5 is substituted or unsubstituted alkyl Z represents the atoms necessary to complete a substituted or unsubstituted 5 or 6 membered heterocyclic nucleus. M.sup.+ is a cation. L.sup.1 through L.sup.Type: GrantFiled: July 22, 1991Date of Patent: May 25, 1993Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Glenn M. Brown, Margaret J. Helber
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Patent number: 5134115Abstract: A dye-donor element for thermal dye transfer comprises a suppport having thereon a dye dispersed in a polymeric binder, the dye comprising a cyan azamethine dye having the formula: ##STR1##Type: GrantFiled: October 31, 1990Date of Patent: July 28, 1992Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Steven Evans
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Patent number: 5098820Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are disclosed as filter dyes for photograhic elements. In this formula,m is 0 or 1.R.sub.1 and R.sub.2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or together with R.sub.3 and R.sub.4 form a heterocyclic ring.R.sub.3 and R.sub.4 are each H or together with R.sub.1 and R.sub.2 form a heterocyclic ring.A is a ketomethylene residue.X represents a carboxyphenyl or sulfonamidophenyl, or a carboxy or sulfonamido substituent that is appended to an aryl ring that is part of A.Type: GrantFiled: May 7, 1990Date of Patent: March 24, 1992Assignee: Eastman Kodak CompanyInventors: Michael J. McManus, Donald R. Diehl, Glenn M. Brown
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Patent number: 5055387Abstract: Sensitizing dyes for photographic materials are disclosed. The dyes have the formula: ##STR1## R.sub.2 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl, andR.sub.1 and R.sub.3 are each independently substituted or unsubstituted alkyl, at least one of R.sub.1 and R.sub.3 having at least about 5 carbon atoms.Type: GrantFiled: March 13, 1990Date of Patent: October 8, 1991Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Michael C. Malec
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Patent number: 4994356Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are disclosed as filter dyes for photographic elements. In this formula, n is 0 or 1.R.sub.1 is CO.sub.2 H or NHSO.sub.2 R.sub.2 where R.sub.2 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl.R.sub.3 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl.Z represents the atoms necessary to complete a substituted or unsubstituted heterocyclic nucleus.Type: GrantFiled: April 4, 1990Date of Patent: February 19, 1991Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Glenn M. Brown
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Patent number: 4988611Abstract: A photographic element is disclosed for handling under a first radiation source and imagewise exposure to a second radiation source having a solid particle dispersion filter dye layer that absorbs radiation emitted to which the element is sensitive emitted by the first source.Type: GrantFiled: February 20, 1990Date of Patent: January 29, 1991Assignee: Eastman Kodak CompanyInventors: Richard B. Anderson, Ronda E. Factor, Anthony Adin, Donald R. Diehl
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Patent number: 4950586Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are useful as filter dyes in photographic elements. In this formula, n is 0 or 1. R.sub.1 and R.sub.2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or taken together with R.sub.6, R.sub.7, N and the atoms to which they are attached, represent the atoms necessary to complete a julolydyl ring.R.sub.3 is H, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl.R.sub.4 and R.sub.5 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, secondary or tertiary amino, CO.sub.2 H, or NHSO.sub.2 R.sub.8, with the proviso that at least one of R.sub.4 and R.sub.5 or a substituted on an aryl ring in R.sub.4 and R.sub.5 is CO.sub.2 H or NHSO.sub.2 R.sub.8. R.sub.8 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl.R.sub.6 and R.sub.7 independently represents H, or R.sub.7 taken together with R.sub.2, or R.sub.Type: GrantFiled: December 23, 1988Date of Patent: August 21, 1990Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Ronda E. Factor
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Patent number: 4948718Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are useful as filter dyes in photographic elements. In this formula, R.sub.1 and R.sub.2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or together represent the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered ring.R.sub.3 and R.sub.4 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, CO.sub.2 H, or NHSO.sub.2 R.sub.6. R.sub.5 is H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, carboxylate, or substituted or unsubstituted acyl, R.sub.6 and R.sub.7 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, and n is 1 or 2. R.sub.8 is either substituted or unsubstituted alkyl, or is part of a double bond between the ring carbon atoms to which R.sub.1 and R.sub.2 are attached.Type: GrantFiled: June 27, 1989Date of Patent: August 14, 1990Assignee: Eastman Kodak CompanyInventors: Ronda E. Factor, Donald R. Diehl
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Patent number: 4948717Abstract: Dyes having the structure ##STR1## A represents a substituted or unsubstituted nucleus selected from the group consisting of rhodanines, hydantoins, 2-thiohydantions, 4-thiohydantoins, 2,4-oxazolidindiones, 2-thio-2,4-oxazolidindiones, isoxazolinones, barbiturics, 2-thiobarbiturics, and indandiones, said nucleus having a carboxyphenyl substituent or sulfonamidophenyl substituent,R represents hydrogen, alkyl of 1 to 4 carbon atoms, or benzyl,R.sup.1 and R.sup.2 each independently represents alkyl or aryl, or taken together with R.sup.5, R.sup.6, N, and the carbon atoms to which they are attached represent the atoms needed to complete a julolydyl ring,R.sup.3 represents H, alkyl, or aryl,R.sup.5 and R.sup.6 each independently represents H, or R.sup.5 taken together with R.sup.1, or R.sup.6 taken together with R.sup.2, each may represent the atoms necessary to complete a carbocyclic ring, andm is 0 or 1are disclosed. The dyes are useful as filter dyes in photographic filter layers.Type: GrantFiled: June 30, 1989Date of Patent: August 14, 1990Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Ronda E. Factor