Patents by Inventor Steven Evans

Steven Evans 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: 5795844
    Abstract: A multicolor dye-donor element for thermal dye transfer capable of producing improved color gamut comprising a support having thereon a set of sequential repeating dye patches of yellow, magenta and cyan image dyes dispersed in a polymeric binder, the element also having at least one additional dye patch comprising a dye dispersed in a polymeric binder, the dye of each such additional dye patch which, when transferred to a dye image-receiving layer before or after transfer of the original yellow, magenta and cyan image dyes, has a hue measured at its maximum density which is outside the color gamut defined by the hues of the original transferred yellow, magenta and cyan image dyes by more than 5 CIELAB .DELTA.E.sub.c units.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: August 18, 1998
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Daniel J. Harrison, Elizabeth McInerney, Kevin E. Spaulding, Helmut Weber
  • Patent number: 5789342
    Abstract: A thermal dye transfer assemblage comprising:(I) a dye-donor element comprising a support having thereon sequentially repeating dye layer patches of a dye dispersed in a polymeric binder, at least one of the dye patches containinga) a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N--H group which is part of a conjugated system, and at least one other of the dye patches containingb) a pendant basic-substituted dye having the formula:A-(L-B).sub.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: August 4, 1998
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Robert A. Guistina, Kristine B. Lawrence, Helmut Weber
  • Patent number: 5750323
    Abstract: Solid particle dispersions of compounds useful in imaging elements can be made with substantially improved stability to particle growth by dispersing the compound of interest in the presence of a relatively small amount of a second compound that is structurally similar to the compound of interest. This second compound is combined with the compound of interest prior to dispersing the compound of interest, i.e., prior to milling in the case of milled dispersions, and prior to precipitation in the case of pH or solvent precipitated dispersions. While being distinct, the second compound has a similar chemical structure to the main compound.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: May 12, 1998
    Assignee: Eastman Kodak Company
    Inventors: Raymond Peter Scaringe, David Darrell Miller, Mary Christine Brick, Leslie Shuttleworth, Margaret Jones Helber, Steven Evans
  • Patent number: 5744422
    Abstract: A thermal dye transfer assemblage comprising:(I) a dye-donor element comprising a support having thereon sequentially repeating dye layer patches of a dye dispersed in a polymeric binder, at least one of the dye patches containing a pendant basic-substituted dye having the formula:A-(L-B).sub.mwherein:A represents a thermally transferable dye residue,L represents a divalent linking group,B represents a basic substituent, andm represents an integer of from 1 to 3; and(II) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the polymeric dye image-receiving layer, the polymeric dye image-receiving layer containing a hydrated transition metal or metalloid salt of a strong acid.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: April 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Helmut Weber, Kristine B. Lawrence, Robert A. Guistina
  • Patent number: 5683956
    Abstract: A thermal dye transfer assemblage comprising:(a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye having a reactive carbonyl group, and(b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, the dye image-receiving layer comprising a polymer containing a primary or secondary aliphatic amino group.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: November 4, 1997
    Assignee: Eastman Kodak Company
    Inventors: Wayne A. Bowman, Steven Evans, Kristine B. Lawrence
  • Patent number: 5678561
    Abstract: A method for detecting a heart disorder comprises examination of a phase-plane plot (PPP) of a patient electrocardiogram (EKG). The PPP's degree of deterministic chaos may be measured by a processor. Analysis of the PPP may indicate a propensity for fibrillation, that is, indicate both the risk of fibrillation and its actual onset (cases where risk is 100 percent). A second method for detecting a heart disorder comprises examination of a frequency-domain transform (such as an FFT) of a patient EKG. An automatic defibrillating device may comprise means for delivering a variable shock, the size of which is determined at least in part by the FFT's peak energy. A method for detecting drug toxicity comprises examination of a parameter time constant for an action-potential duration (APD) restitution curve which is constructed for the patient.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: October 21, 1997
    Assignee: Cedars-Sinai Medical Center
    Inventors: Hrayr S. Karagueuzian, George A. Diamond, Steven S. Khan, Timothy A. Denton, Steven Evans
  • Patent number: 5643325
    Abstract: A method for detecting a heart disorder comprises examination of a phase-plane plot (PPP) of a patient electrocardiogram (EKG). The PPP's degree of deterministic chaos may be measured by a processor. Analysis of the PPP may indicate a propensity for fibrillation that is, indicate both the risk of fibrillation and its actual onset (cases where risk is 100 percent). A second method for detecting a heart disorder comprises examination of a frequency-domain transform (such as an FFT) of a patient EKG. An automatic defibrillating device may comprise means for delivering a variable shock, the size of which is determined at least in part by the FFT's peak energy. A method for detecting drug toxicity comprises examination of a parameter time constant for an action-potential duration (APD) restitution curve which is constructed for the patient.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: July 1, 1997
    Assignee: Cedars-Sinai Medical Center
    Inventors: Hrayr S. Karagueuzian, George A. Diamond, Steven S. Khan, Timothy A. Denton, Steven Evans
  • Patent number: 5642936
    Abstract: The present invention relates to a method of determining human hereditary disease risk factors, a method of determining hereditary cancer patterns presenting in cancer family histories, and a method of determining whether a cancer family history represents a hereditary pattern.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: July 1, 1997
    Assignee: OncorMed
    Inventor: Steven Evans
  • Patent number: 5627129
    Abstract: A dye-receiving element for thermal dye transfer comprising a a support having on one side thereof, in order, a subbing layer of an amino-functionalized polymer, and a polymeric dye image-receiving layer, the receiving layer containing a stabilizer having the following structure: ##STR1## wherein n is an integer of about 4 to about 12, andR is a substituted or unsubstituted alkyl group of at least 6 carbon atoms.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: May 6, 1997
    Assignee: Eastman Kodak Company
    Inventors: Teh-Ming Kung, Daniel J. Harrison, Steven Evans
  • Patent number: 5559076
    Abstract: A thermal dye transfer assemblage comprising:(a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye comprising an N-arylimido-ethylidene-benz[c,d]indole dye precursor, and(b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, the dye image-receiving layer containing an organic acid which is capable of converting the dye precursor into a cationic magenta anilinovinyl-benz[c,d]indolium dye.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 24, 1996
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Helmut Weber
  • Patent number: 5555889
    Abstract: A method for detecting a heart disorder comprises examination of a phase-plane plot (PPP) of a patient electrocardiogram (EKG). The PPP's degree of deterministic chaos may be measured by a processor. Analysis of the PPP may indicate a propensity for fibrillation, that is, indicate both the risk of fibrillation and its actual onset (cases where risk is 100 percent). A second method for detecting a heart disorder comprises examination of a frequency-domain transform (such as an FFT) of a patient EKG. An automatic defibrillating device may comprise means for delivering a variable shock, the size of which is determined at least in part by the FFT's peak energy. A method for detecting drug toxicity comprises examination of a parameter time constant for an action-potential duration (APD) restitution curve which is constructed for the patient.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: September 17, 1996
    Assignee: Cedars-Sinai Medical Center
    Inventors: Hrayr S. Karagueuzian, George A. Diamond, Steven S. Khan, Timothy A. Denton, Steven Evans
  • Patent number: 5547728
    Abstract: An optical recording element having a transparent substrate and on the surface of said substrate, a recording layer and a light reflecting layer wherein recording layer comprises a mixture of a metallized formazan dye and cyanine dye and the unrecorded layer is such that the real part of the refractive index (N) at 780 nm is not less than 1.8 and the imaginary part (k) is not greater than 0.2.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: August 20, 1996
    Assignee: Eastman Kodak Company
    Inventors: Michael P. Cunningham, Steven Evans
  • Patent number: 5512532
    Abstract: A thermal dye transfer assemblage comprising:(a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being substituted with a reactive primary or secondary aliphatic or primary aromatic amino group, and(b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, the dye image-receiving layer comprising a polymer containing a plurality of .beta.-diketone, .beta.-ketoester or .beta.-ketoamide functional groups.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: April 30, 1996
    Assignee: Eastman Kodak Company
    Inventors: David B. Bailey, Wayne A. Bowman, Steven Evans, Kristine B. Lawrence, John M. Noonan
  • Patent number: 5510314
    Abstract: A thermal dye transfer assemblage comprising:(a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being substituted with a reactive primary or secondary aliphatic amino group, and(b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, the dye image-receiving layer comprising a polymer containing a plurality of functional groups:R.sup.2 --CO--X--R.sup.3wherein:R.sup.2 represents alkyl, aryl, alkoxy or aryloxy;X represents oxygen or sulfur; andR.sup.3 represents aryl or hetaryl;with the proviso that R.sup.2 or R.sup.2 and R.sup.3 are directly attached to the polymer chain.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: April 23, 1996
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Kristine B. Lawrence, Ellen J. Pyszczek
  • Patent number: 5503956
    Abstract: A black laser dye-ablative recording element comprising a support having thereon a dye layer comprising a mixture of at least one cyan, magenta and yellow dye dispersed in a polymeric binder, said dye layer having an infrared-absorbing material associated therewith, said cyan dye having the formula: ##STR1## wherein: R.sup.1, R.sup.2, R.sup.3, X, Y, J and m are as defined.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: April 2, 1996
    Assignee: Eastman Kodak Company
    Inventors: Linda Kaszczuk, Steven Evans, Richard W. Topel, Jr.
  • Patent number: 5451485
    Abstract: A dye-ablative recording element comprising a support having thereon an interlayer containing an inorganic hydrate salt, the interlayer being overcoated with a dye layer comprising an image dye dispersed in a polymeric binder, and the dye layer having an infrared-absorbing material associated therewith.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: September 19, 1995
    Assignee: Eastman Kodak Company
    Inventors: Linda Kaszczuk, Lee W. Tutt, Richard W. Topel, Jr., Steven Evans
  • Patent number: 5369081
    Abstract: A dye donor element for thermal dye transfer comprising a support having thereon a dye in a polymeric binder, the dye being a 4-nitro-pyrazol-5-yl-azoaniline magenta dye, such as one having the formula: ##STR1##
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: November 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Max A. Weaver, Helmut Weber
  • Patent number: 5369080
    Abstract: A cyan dye-donor element for thermal dye transfer imaging comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, wherein the dye comprises a mixture of at least two different cyan dyes, each of the dyes comprising a 2-carbamoyl-4-[N-(p-substituted aminoaryl)imino]-1,4-naphthoquinone, with the proviso that at least one dye is present at a concentration of at least 10 wt.% and that same dye also contains an alkyl group substituted with a group capable of intermolecular hydrogen bonding.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: November 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Kristine B. Lawrence, Steven Evans
  • Patent number: 5340789
    Abstract: A cyan dye-donor element for thermal dye transfer imaging comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, wherein the dye comprises a mixture of at least three different 2-carbamoyl-4-[N-(p-aminoaryl)-imino]-1,4-naphthoquinone dyes, each of the dyes having the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each individually represents a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms, a substituted or unsubstituted cycloalkyl group of from about 5 to about 7 carbon atoms, a substituted or unsubstituted aryl group of from about 5 to about 10 carbon atoms or an allyl group;R.sup.2 and R.sup.3 may be combined together to form a 5- or 6-membered ring;R.sup.2 and/or R.sup.3 may be combined with one or two of X to form a 5- or 6-membered ring;R.sup.4 and X each individually represents hydrogen, a substituted or unsubstituted alkyl group of from about 1 to about 6 carbon atoms, halogen, --NHCOR.sup.1 or --NHSO.sub.2 R.sup.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: August 23, 1994
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Noel R. Vanier
  • Patent number: 5340790
    Abstract: A cyan dye-donor element for thermal dye transfer imaging comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, wherein the dye comprises a mixture of at least two different 2-carbamoyl-4-[N-(p-aminoaryl)-imino]-1,4-naphthoquinone dyes, each of the dyes having the formula: ##STR1## with the proviso that at least 50% of the dye mixture is a dye having the formula: ##STR2## and with the further proviso that at least one of the other dyes in the mixture has the formula: ##STR3##
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: August 23, 1994
    Assignee: Eastman Kodak Company
    Inventors: Raymond P. Scaringe, Steven Evans, William H. Simpson, Richard C. Vanhanehem