Patents by Inventor Glenn M. Brown

Glenn M. Brown 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: 6586165
    Abstract: The present invention is a photographic element which includes, in order, a transparent support, at least one silver halide emulsion layer superposed on the support, optionally a white or diffuse reflective layer, and a processing-solution-permeable protective layer on the backside, which protective layer becomes water-resistant in the final product without lamination or fusing. The present invention is also directed to a method of making a photographic print involving developing the photographic element. The resulting print is viewed through the support, which provides protection against scratches and stains, while the polymeric overcoat provides water and stain protection to the reverse of the print where minor scratches or damage are not critical, since the image is not viewed from this side. Thus, this invention provides for a tough, stain resistant and transparent viewing surface and a stain resistant back side, which is permeable to processing solutions.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: July 1, 2003
    Assignee: Eastman Kodak Company
    Inventors: Kevin M. Donovan, Glenn M. Brown, Lloyd A. Lobo
  • Patent number: 6558886
    Abstract: Disclosed is a silver halide direct view multicolor photographic element comprising a green record containing a green light sensitized silver halide emulsion and comprising either (a) a magenta dye-forming coupler and a cyan dye-forming coupler in an amount of at least 0.1 mole % of the couplers present in the green record, or (b) a green record having a coupler or couplers sufficient to provide upon development a Status A red density greater than 0.23 as measured using a green light separation exposure at a Status A green density of 1.0.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: May 6, 2003
    Assignee: Eastman Kodak Company
    Inventors: Walter H. Isaac, Jess B. Hendricks, Vincent J. Flow, Patrick W. Webber, Glenn M. Brown, Cynthia A Fitzgerald, Carolyn R. Ellinger
  • Patent number: 6555304
    Abstract: Disclosed is a silver halide direct view multicolor photographic element comprising a red record containing (1) a red light sensitized silver halide emulsion, (2) a cyan dye-forming NB first coupler, and (3) a second coupler selected from (a) a magenta dye forming coupler in an amount of 2-30 mole % of the total coupler in the red record and (b) a cyan dye-forming coupler having a greater absorption in the green spectra than the first coupler in an amount sufficient to provide a Status A green density in the range of 0.27 to 0.40 using a red light separation exposure at a Status A red density of 1.0. Such an element exhibits improved flesh tone reproduction and good dye dark stability.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: April 29, 2003
    Assignee: Eastman Kodak Company
    Inventors: Walter H. Isaac, Vincent J. Flow, James S. Honan, Jeffrey C. Smitley, Patrick W. Webber, Glenn M. Brown, Cynthia A. Fitzgerald, Jess B. Hendricks, Thomas A. Rosiek, John H. Harder, Carolyn H. Ellinger
  • Publication number: 20030077546
    Abstract: The present invention is a photographic element which includes, in order, a transparent support, at least one silver halide emulsion layer superposed on the support, optionally a white or diffuse reflecttive layer, and a processing-solution-permeable protective layer on the backside, which protective layer becomes water-resistant in the final product without lamination or fusing. The present invention is also directed to a method of making a photographic print involving developing the photographic element. The resulting print is viewed through the support, which provides protection against scratches and stains, while the polymeric overcoat provides water and stain protection to the reverse of the print where minor scratches or damage are not critical, since the image is not viewed from this side. Thus, this invention provides for a tough, stain resistant and transparent viewing surface and a stain resistant back side, which is permeable to processing solutions.
    Type: Application
    Filed: April 27, 2001
    Publication date: April 24, 2003
    Applicant: Eastman Kodak Company
    Inventors: Kevin M. Donovan, Glenn M. Brown, Lloyd A. Lobo
  • Patent number: 6312880
    Abstract: The invention relates to a multilayer photographic element comprising a reflective support wherein the color record 1 adjacent to the support comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; and wherein color record 2 above said color record 1 comprises at least one light sensitive layer and at least two non-light sensitive dye-forming interlayers and wherein color record 3 above said color record 2 comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; and a top overcoat layer comprising gelatin and ultraviolet absorbing material; and wherein each interlayer is substantially scavenger free, and color records 1, 2, and 3 comprise silver halide grains comprising greater than 90% silver chloride, and wherein the reciprocity characteristics of the silver halide grains are such that for a separation exposure of 1 microsecond and 0.4 sec, at least one color record develops to a density of at least 2.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: November 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Hwei-Ling Yau, Glenn M. Brown
  • Patent number: 6203973
    Abstract: The present invention is a polymer latex that includes polymer particles having a core portion and a shell portion. The core portion contains polymerized hydrophobic ethylenically unsaturated monomers with a water solubility less than 1% at room temperature. The shell portion contains polymerized monomers defined by formula (I) wherein X is O or NH, or NCH3, R1 and R2 are H, CH3, C2H5, C3H7, or C4H9, R3 and R4 are H or CH3, n1 and n2 are integers, n1 is from 1 to 4, n2 is from 1 to 20. The polymer particles having a size of less than 50 nm.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: March 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Tienteh Chen, Edward Schofield, Hwei-Ling Yau, Glenn M. Brown
  • Patent number: 5814438
    Abstract: An ultraviolet absorbing compound of formula (I) below, and photographic elements containing such a compound as an ultraviolet absorber: ##STR1## wherein: R.sub.1 -R.sub.4 independently is a hydrogen atom, a halogen atom such as fluoro, chloro, bromo, iodo or a combination thereof; a carbalkoxy group having at least one asymmetric carbon or asymmetric silicon atom; an alkoxy group having at least one asymmetric carbon or asymmetric silicon atom, with the proviso that R.sub.2 or R.sub.3, or both R.sub.2 and R.sub.3 are other than hydrogen;A* is a group having a carbon atom directly attached to 2'-hydroxyphenyl ring at the 5'-position which contains at least one asymmetric carbon atom or an asymmetric silicon atom, and;wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon atom of A*.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: September 29, 1998
    Assignee: Eastman Kodak Company
    Inventors: Lal C. Vishwakarma, Glenn M. Brown, Barry F. Briffa
  • Patent number: 5683861
    Abstract: An ultraviolet absorbing compound of formula (I) below, and photographic elements containing such a compound as an ultraviolet absorber: ##STR1## wherein: R.sub.4 is a substituted alkyl group, R.sub.4 may be further joined to either L or A* forming a ring and the benzo or phenyl ring shown may be further substituted or unsubstituted;L is a bivalent linking group;p is 0 or 1;A* is an alkyl group having an asymmetric carbon or asymmetric silicon atom, and;wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon atom of A*.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: November 4, 1997
    Assignee: Eastman Kodak Company
    Inventors: Lal C. Vishwakarma, Glenn M. Brown
  • Patent number: 5585228
    Abstract: Ultraviolet absorbing compounds of formula (I) and photographic elements containing such compounds: ##STR1## wherein: R.sub.4 is a bivalent linking group; the benzo or phenyl ring shown may be further substituted or unsubstituted;L is a bivalent linking group;p is 0 or 1;A* is an alkyl group having an asymmetric carbon or silicon atom, and;wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon of A*.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 17, 1996
    Assignee: Eastman Kodak Company
    Inventors: Lal C. Vishwakarma, Glenn M. Brown
  • Patent number: 5470695
    Abstract: 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: Grant
    Filed: August 12, 1994
    Date of Patent: November 28, 1995
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Glenn M. Brown
  • Patent number: 5457014
    Abstract: Melt crystallization of a photographic composition containing dispersed particles of a filter dye and dispersed particles of oxidized developer scavenger, in particular a hydrazide or a disulfonamidophenol oxidized developer scavenger, is inhibited by dispersing the oxidized developer scavenger in the composition in the form of particles comprising the oxidized developer scavenger dispersed or dissolved in an organic solvent selected such that the following relationship is satisfied:6.65+10.0 A-1.53 B+0.11 B.sup.2 -0.99 AB.ltoreq.4.0wherein A is the weight ratio of organic solvent to oxidized developer scavenger; and B is the log P of the organic solvent.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: October 10, 1995
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Glenn M. Brown, John B. Rieger
  • Patent number: 5399690
    Abstract: 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: Grant
    Filed: February 10, 1993
    Date of Patent: March 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Glenn M. Brown, Margaret J. Helber
  • Patent number: 5360702
    Abstract: Melt crystallization of a photographic composition containing dispersed particles of a filter dye and dispersed particles of oxidized developer scavenger, in particular a hydrazide or a disulfonamidophenol oxidized developer scavenger, is inhibited by dispersing the oxidized developer scavenger in the composition in the form of particles comprising the oxidized developer scavenger dispersed or dissolved in an organic solvent selected such that the following relationship is satisfied:6.65+10.0 A-1.53 B+0.11 B.sup.2 -0.99 AB<4.0wherein A is the weight ratio of organic solvent to oxidized developer scavenger; and B is the log P of the organic solvent.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: November 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Glenn M. Brown, John B. Rieger
  • Patent number: 5283167
    Abstract: A direct-positive image-forming photographic material comprises a supporting substrate bearing a light sensitive, nonprefogged silver halide photographic emulsion capable of forming an internal latent image and includes a water-insoluble nucleator. The nucleator is incorporated in the photographic material in the form of a solid particle dispersion to improve the storage stability of the photographic material. The development rate of the photographic material may be increased by use of a developer containing an activator for the nucleator.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: February 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Krishnan Chari, Douglas E. Corbin, Glenn M. Brown, Harry A. Hoyen
  • Patent number: 5266454
    Abstract: 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: Grant
    Filed: March 1, 1993
    Date of Patent: November 30, 1993
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Glenn M. Brown
  • Patent number: 5213956
    Abstract: 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: Grant
    Filed: July 22, 1991
    Date of Patent: May 25, 1993
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Glenn M. Brown, Margaret J. Helber
  • Patent number: 5098820
    Abstract: 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: Grant
    Filed: May 7, 1990
    Date of Patent: March 24, 1992
    Assignee: Eastman Kodak Company
    Inventors: Michael J. McManus, Donald R. Diehl, Glenn M. Brown
  • Patent number: 4994356
    Abstract: 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: Grant
    Filed: April 4, 1990
    Date of Patent: February 19, 1991
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Glenn M. Brown
  • Patent number: 4923788
    Abstract: Photographic elements comprising filter dyes of the formula: ##STR1## R, R', L, L', L", X, and n are as defined herein are disclosed.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: May 8, 1990
    Assignee: Eastman Kodak Company
    Inventors: Leslie Shuttleworth, Paul B. Merkel, Glenn M. Brown
  • Patent number: 3942363
    Abstract: A drive-dynamometer system particularly adapted for automated testing of parts such as vehicle engines. The dynamometer is a hydrostatic system having a fixed displacement motor connected to, and a variable displacement pump spaced from the part being tested, the pump having motor means for driving it. The system has a closed hydraulic loop connecting the motor and the pump whereby the engine may be selectively cold-tested or hot-tested, the motor during hot-testing acting as a pump and the pump acting as a motor which therefore drives its motor means. Preferably, this comprises a synchronous electric motor, which, when acting as a generator, creates useful electric power for the plant in which the unit is installed. Means are provided for adjusting the displacement of the pump, and a control loop system is provided for the pump adjusting means to simulate different load or inertia conditions.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: March 9, 1976
    Assignee: The Cross Company
    Inventors: Philip E. Swis, Glenn M. Brown