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: 6508549
    Abstract: A color ink jet ink set for color printing including: (a) a magenta ink having a carrier and a water-soluble, transition metal complex of an 8-heterocyclylazo-5-hydroxyquinoline dye; (b) a yellow ink having a carrier and a water-soluble yellow dye, (c) a cyan ink having a carrier and a water-soluble cyan dye, and (d) an orange and/or green ink having a carrier and a water-soluble orange and/or green dye.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: January 21, 2003
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Romano, Jr., Barbara L. Grady, Steven Evans
  • Patent number: 6482769
    Abstract: A diffusion resistant lenticular element comprising a support having a lenticular array thereon, the element having thereon an acidic mordanting layer containing a laser-induced, cationic dye image, the mordanting layer being on the side of said support which does not contain said lenticular array.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: November 19, 2002
    Assignee: Eastman Kodak Company
    Inventors: Lee W. Tutt, Christine M. Vargas, Steven Evans
  • Patent number: 6481841
    Abstract: An ink jet printing method, having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink-receiving element having a support having thereon an ink-receiving layer, C) loading the printer with an ink jet ink set for color printing having: (a) a yellow ink having a carrier and a yellow azoaniline dye; (b) a magenta ink having a carrier and a magenta anthrapyridone dye; and (c) a cyan ink having a carrier and Direct Blue 307; and D) printing on the ink-receiving layer using the ink jet ink in response to the digital data signals.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: November 19, 2002
    Assignee: Eastman Kodak Company
    Inventors: James W. Blease, Steven Evans, Karen J. Klingman
  • Publication number: 20020157567
    Abstract: An ink jet ink composition comprising water, a humectant, a polyvalent transition metal complex of an 8-heterocyclylazo-5-hydroxy-quinoline and an anti-kogation material comprising an alkali metal salt of a monobasic organic or inorganic acid. Examples of anti-kogation materials useful in the invention include sodium hexanoate, sodium sulfate, sodium propionate, sodium benzoate, sodium p-toluenesulfonate, sodium acetate, sodium bromide, sodium nitrate, potassium nitrate, lithium nitrate, lithium acetate, tetramethylammonium acetate and tetrabutylammonium bromide.
    Type: Application
    Filed: February 27, 2001
    Publication date: October 31, 2002
    Applicant: Eastman Kodak Company
    Inventors: David Erdtmann, Edgardo Lopez, Richard C. Van Hanehem, Steven Evans
  • Publication number: 20020157566
    Abstract: An ink jet printing method, comprising the steps of:
    Type: Application
    Filed: February 27, 2001
    Publication date: October 31, 2002
    Applicant: Eastman Kodak Company
    Inventors: David Erdtmann, Steven Evans, Edgardo Lopez, Richard C. Van Hanehem
  • Patent number: 6468338
    Abstract: An ink jet ink composition comprising water, a humectant and a water-soluble pyrazoleazoindole dye.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: October 22, 2002
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Helmut Weber, Ellen M. Pyszczek, Ann L. Carroll-Lee
  • Patent number: 6464767
    Abstract: An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading said printer with an ink jet recording element comprising a support having thereon an image-receptive layer capable of accepting an ink jet image; C) loading said printer with an ink jet ink composition comprising water, a humectant and a water-soluble pyrazoleazoindole dye; and D) printing on said ink jet recording element using said ink jet ink in response to said digital data signals.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: October 15, 2002
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Helmut Weber, Ellen M. Pyszczek, Ann L. Carroll-Lee
  • Patent number: 6457822
    Abstract: An ink jet printing method having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink-receiving element having a support having thereon an ink-receiving layer; loading the printer with an ink jet composition of water, a humectant, and a hyperbranched polymeric dye having a hyperbranched polymer having a dye chromophore pendant on the polymer chain or incorporated into the polymer backbone; and D) printing on the ink-receiving layer using the inkjet ink in response to the digital data signals.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 1, 2002
    Assignee: Eastman Kodak Company
    Inventors: Huijuan Chen, Jin-Shan Wang, Steven Evans
  • Patent number: 6431700
    Abstract: An ink jet printing method, including the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink-receptive elements including a support having thereon a porous ink-receptive layer; C) loading the printer with an ink jet ink composition including a water-dispersible polymeric latex having contained therein a water-insoluble, salt-type dye; and D) printing on the ink-receptive layer using the ink jet ink in response to the digital data signals.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: August 13, 2002
    Assignee: Eastman Kodak Company
    Inventors: Huijuan D. Chen, David Erdtmann, Ann L. Carroll-Lee, Steven Evans
  • Publication number: 20020086112
    Abstract: An ink jet printing method, having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink-receptive elements having a support having thereon a continuous, coextensive porous ink-receptive layer; C) loading the printer with an ink jet ink composition comprising an aqueous-dispersible polyester having contained therein a water-insoluble dye; and D) printing on the ink-receptive element using the ink jet ink in response to the digital data signals.
    Type: Application
    Filed: January 15, 2002
    Publication date: July 4, 2002
    Applicant: Eastman Kodak Company
    Inventors: Huijuan Chen, Steven Evans, James Reczek
  • Patent number: 6364476
    Abstract: An ink jet printing process for improving the dye density and fixability of an ink jet image comprising: a) providing an ink jet recording element including a support having thereon an image-recording layer including a mixture of an anionic, addition polymer and a hydrophilic polymer; and b) applying droplets of a liquid ink on the image-recording layer in an image-wise manner, the ink including water, humectant and a water-soluble cationic or basic dye.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: April 2, 2002
    Assignee: Eastman Kodak Company
    Inventors: Kristine B. Lawrence, Steven Evans, Csaba A. Kovacs, David M. Teegarden
  • Patent number: 6333183
    Abstract: Polymerases from the Pol I family which are able to efficiently use ddNTPs have demonstrated a much improved performance when used to sequence DNA. A number of mutations have been made to the gene coding for the Pol II family DNA polymerase from the archaeon Pyrococcus furiosus with the aim of improving ddNTP utilisation. “Rational” alterations to amino acids likely to be near the dNTP binding site (based on sequence homologies and structural information) did not yield the desired level of selectivity for ddNTPs. However, alteration at four positions (Q472, A486, L490 and Y497) gave rise to variants which incorporated ddNTPs better than the wild type, allowing sequencing reactions to be carried out at lowered ddNTP:dNTP ratios. Wild type Pfu-Pol required a ddNTP:dNTP ratio of 30:1; values of 5:1 (Q472H), 1:3 (L490Y), 1:5 (A486Y) and 5:1 (Y497A) were found with the four mutants; A486Y representing a 150-fold improvement over the wild type.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: December 25, 2001
    Assignee: Amersham Pharmacia Biotech, Inc.
    Inventors: Steven Evans, Joseph Anthony Mamone, Maria Davis, Bernard A. Connolly
  • Patent number: 6280028
    Abstract: An ink jet printing process for improving the dye density and fixability of an ink jet image comprising: a) providing an ink jet recording element comprising a support having thereon an image-recording layer comprising a mixture of a hydrophilic polymer and a polyolefin polymer or wax; and b) applying droplets of a liquid ink on the image-recording layer in an image-wise manner, the ink comprising water, humectant and a water-soluble cationic or basic dye.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Eastman Kodak Company
    Inventors: Kristine B. Lawrence, Steven Evans, Csaba A. Kovacs
  • Patent number: 6280026
    Abstract: An ink jet printing process for improving the dye density and fixability of an ink jet image comprising: a) providing an ink jet recording element comprising a support having thereon an image-recording layer comprising a mixture of an anionic, water-dispersible polyester ionomer and a hydrophilic polymer; and b) applying droplets of a liquid ink on the image-recording layer in an image-wise manner, the ink comprising water, humectant and a water-soluble cationic or basic dye.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Eastman Kodak Company
    Inventors: Kristine B. Lawrence, Csaba A. Kovacs, Susan L. Dawson, Steven Evans, Teh-Ming Kung
  • Patent number: 6280027
    Abstract: An ink jet printing process for improving the dye density and fixability of an ink jet image comprising: a) providing an ink jet recording element comprising a support having thereon an image-recording layer comprising a mixture of an anionic, water-dispersible polyurethane and a hydrophilic polymer; and b) applying droplets of a liquid ink on the image-recording layer in an image-wise manner, the ink comprising water, humectant and a water-soluble cationic or basic dye.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Eastman Kodak Company
    Inventors: Kristine B. Lawrence, Paul D. Yacobucci, Csaba A. Kovacs, Steven Evans
  • Patent number: 6208364
    Abstract: A process of forming a diffusion resistant lenticular element: a) contacting at least one dye-donor element having a support having thereon a dye layer having an image dye in a binder having an infrared-absorbing material associated therewith, the image dye comprising a nonionic dye capable of being converted to a cationic dye with an acid, with a lenticular element having a support with a lenticular array thereon on the opposite side thereof; b) imagewise-heating the dye-donor element with a laser; c) transferring a dye image to the support of the lenticular element; d) contacting the dye image with an acidic mordanting layer; and e) heating the lenticular element to cause the nonionic dye to convert to a cationic dye which is mordanted in the acidic mordanting layer.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: March 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: Lee W. Tutt, Christine M. Vargas, Steven Evans
  • Patent number: 6183548
    Abstract: A color ink jet ink set for color printing comprising: (a) a yellow ink comprising a carrier and Direct Yellow 107, Direct Yellow 132 or Direct Yellow 86; (b) a magenta ink comprising a carrier and a water soluble, transition metal complex of an 8-heterocyclylazo-5-hydroxyquinoline dye; and (c) a cyan ink comprising a carrier and a sulfonated copper phthalocyanine dye.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: February 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: David Erdtmann, Steven Evans, Helmut Weber
  • Patent number: 6174356
    Abstract: An ink jet ink composition comprising water, a humectant and a water-soluble azoindole dye.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: January 16, 2001
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Helmut Weber, Ellen M. Pyszczek
  • Patent number: 6143061
    Abstract: An ink jet ink composition comprising water, a humectant, and a delocalized cationic azo dye derived from the quatemization of a heterocyclic azoaminothiazole dye.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: November 7, 2000
    Assignee: Eastman Kodak Company
    Inventors: Steven Evans, Csaba A. Kovacs, Ellen M. Pyszczek, Helmut Weber
  • Patent number: 6136081
    Abstract: An aqueous ink Jet ink composition comprising a humectant in an amount of up to about 70% by weight of the composition, and from about 0.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: October 24, 2000
    Assignee: Eastman Kodak Company
    Inventors: Raymond P. Scaringe, Steven Evans, Richard C. VanHanehem