Patents by Inventor Melvin Michael Kestner

Melvin Michael Kestner 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: 6303281
    Abstract: A silver halide photographic element comprises a support having thereon at least one light-sensitive silver halide emulsion layer and a light-insensitive protective layer, the light-insensitive protective layer comprising an ultraviolet absorbing layer closer to the support and an outermost protective layer, the ultraviolet absorbing layer comprising an ultraviolet aborbing dye, a high boiling organic solvent, and a hydrophilic binder, the outermost protective layer comprising insoluble matte particles having a mean particle size of larger than 0.5 &mgr;m, dispersed polymer particles having a mean size of less than 0.2 &mgr;m, and a glass transition temperature of at least 70° C., and a hydrophilic binder.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: October 16, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Melvin Michael Kestner, Alfred Bruce Fant, Dennis Edward Smith
  • Patent number: 6291154
    Abstract: A silver halide photographic element, and a method of making such an element, comprising a tabular grain silver halide emulsion containing at least one green spectral sensitizing dye of formula I, and at least one green spectral sensitizing dye of formula II: wherein R1 and R2 may be the same or different and are selected from substituted or unsubstituted C1 or C2 alkyl, substituted or unsubstituted C1 or C2 alkoxy, halogen, substituted or unsubstituted amido, or carbamoyl or substituted or unsubstituted aryl, provided that R1 and R2 are not both aryl, and the benzo back rings may optionally be further substituted; X3 is a substituted or unsubstituted C1 to C3 alkyl or alkenyl; X1 and X2 are acid or acid salt substituted C1 to C6 alkyl or alkenyl which may be further substituted or unsubstituted; M+ is a positive ion as required to balance the charge; where R3 and R4 may be the same or different and represent substituted or unsubstituted alkyl or alkenyl of 1 to 4 c
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: September 18, 2001
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Frederick Charles Derks, Melvin Michael Kestner, Steven George Link
  • Patent number: 5935742
    Abstract: A photographic material comprising a cassette containing a processed photographic element, the photographic element comprising a support, at least one light sensitive silver halide layer and a protective overcoat layer on the light sensitive layer, the protective overcoat layer comprising a hydrophilic binder and permanent matte particles, the permanent matte particles comprising greater than 80 mole percent methyl methacrylate and having a mean particle size of from 1 to 1.8 .mu.m and a coating weight of from 70 to 250 mg/m.sup.2.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: August 10, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Dennis Edward Smith, Alfred Bruce Fant, Melvin Michael Kestner
  • Patent number: 5811228
    Abstract: The invention provides a multilayer color negative photographic element comprising a support, at least one light-sensitive silver halide emulsion layer sensitive to each of the blue, green and red regions of the visible spectrum, a magnetic recording layer, and a permanent density correction dye, wherein:the spectral absorbance maximum of the density correction dye is in the range of 450-485 nm;the ratio of the absorbance of the density correction dye at 480 nm relative to 420 nm is between 1.2 and 3.5;the ratio of the absorbance of the density correction dye at 440 nm relative to 420 nm is between 1.25 and 2.5;the ratio of the absorbance of the density correction dye at 510 nm relative to 480 nm is less than 0.6; andthe density correction dye is uncharged and is free of carboxyl and sulfonate groups.The element exhibits improved color balance permitting it to be satisfactorily processed together with conventional photographic elements to produce viewable color images.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: September 22, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, David Hoke
  • Patent number: 5770353
    Abstract: Silver halide photographic elements are disclosed comprising a support having a front and a back side, at least one light-sensitive silver halide emulsion layer and a light-insensitive protective overcoat on the front side of the support, and a magnetic recording layer on the back side of the support, the light-insensitive protective overcoat comprising an outermost protective layer, wherein the outermost protective layer comprises a hydrophilic binder and dispersed particles having a mean size of less than 0.4 .mu.m of a polymer having a glass transition temperature of at least 70.degree. C. comprising units derived from monomers A and B at a weight ratio of A:B of from 97:3 to 80:20 and less than 3 wt % ionic monomers, where A represents ethylenically unsaturated monomers which form substantially water insoluble homopolymers and B represents ethylenically unsaturated non-ionic monomers capable of forming water soluble homopolymers.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: June 23, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Alfred Bruce Fant, Dennis Edward Smith, Kurt Michael Schroeder, Melvin Michael Kestner
  • Patent number: 5725999
    Abstract: The invention provides a multilayer color negative photographic element comprising a support, at least one light-sensitive silver halide layer sensitive to each of the blue, green and red regions of the visible spectrum, a magnetic recording layer and a yellow or orange-yellow methine density correction dye of structure I, ##STR1## wherein R.sub.1 is hydrogen or an alkyl group;R.sub.2 is an alkyl group or an aryl group;R.sub.3 is hydrogen, a halogen atom, an alkyl group, an alkoxy group or an aryloxy group;R.sub.4 is hydrogen or an alkyl group;R.sub.5 is hydrogen or an alkyl group;R.sub.6 is hydrogen or an alkyl group;X is oxygen or sulfur;each R.sub.7 is independently a substituent selected from the group consisting of a halogen atom, and alkyl, aryl, alkoxy, aryloxy, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, acyl, sulfamoyl, sulfonyl, sulfoxyl, alkylthio, arylthio and cyano groups;R.sub.1 and R.sub.2 or R.sub.2 and R.sub.3 may join to form a ring.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: March 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, David Hoke, Jeffrey Walter Schmoeger
  • Patent number: 5719014
    Abstract: The invention provides a multilayer color negative photographic film comprising a support, at least one light-sensitive silver halide layer sensitive to each of the blue, green and red regions of the visible spectrum and a yellow or orange-yellow methine dye of structure I, ##STR1## wherein: R.sub.1 is hydrogen or an alkyl group;R.sub.2 is an alkyl group or an aryl group;R.sub.3 is hydrogen, a halogen atom (such as chlorine or fluorine), an alkyl group, an alkoxy group or an aryloxy group;R.sub.4 is hydrogen or an alkyl group;R.sub.5 is hydrogen or an alkyl group;R.sub.6 is hydrogen or an alkyl group;X is oxygen or sulfur;each R.sub.7 is independently a substituent selected from the group consisting halogen atoms, and alkyl, aryl, alkoxy, aryloxy, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, acyl, sulfamoyl, sulfonyl, sulfoxyl, sulfonyloxy, alkylthio, arylthio, and cyano groups;n is 0, 1, 2 or 3; andR.sub.1 and R.sub.2 or R.sub.2 and R.sub.3 may join to form a ring.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, James Anthony Friday