Patents by Inventor Thomas Robert Dobles

Thomas Robert Dobles 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: 6066443
    Abstract: A photographic element having a silver halide emulsion spectrally sensitized to blue light by a dye of formula (I) to have a maximum blue sensitivity at less than 485 nm. The dye allows the element to have good color reproduction while still providing good speed response despite the shorter blue sensitivity. Formula (I) is: ##STR1## wherein: X and X' each independently represent the atoms necessary to complete a thiazole, benzothiazole, naphthothiazole, oxazole, benzoxazole, naphthoxazole, selenazole, benzoselenazole, naphthoselenazole, imidazole, benzimidazole, or naphtho-imidazole, and X may be further substituted and X' substituted or unsubstituted;Z.sub.1 represents a pyrrole, furan or thiophene containing group;R.sub.1 and R.sub.2 each independently represent substituted or unsubstituted hydrocarbon containing 1 to 10 carbon atoms; andA represents a counter-ion as needed to balance a charge of the molecule.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: May 23, 2000
    Assignee: Eastman Kodak Company
    Inventors: Thomas Robert Dobles, Richard Lee Parton, Pamela McCue Ferguson, Nona Veith Spitzner, David Alan Stegman, Steven George Link, Kenneth Joseph Reed, Marian Sue Henry