Patents by Inventor Frank D. Coms

Frank D. Coms 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: 5759757
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the element containing an image modifying compound which comprises a magenta coupler moiety which upon reaction with oxidized color developing agent during processing forms a dye, said coupler moiety having attached to the coupling site, either directly or through a timing group, a 1,2,3-triazole moiety, the attachment being through the second nitrogen atom of the triazole moiety.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: June 2, 1998
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Frank D. Coms, Daniel L. Kapp
  • Patent number: 5709987
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the element further comprising a photographic coupler represented by the formulaCOUP-(T.sup.1).sub.b -T.sup.2 -(T.sup.3).sub.c -PUGwherein the substituents are as defined herein the specification.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: January 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Frank D. Coms, Teh-Hsuan Chen
  • Patent number: 5457004
    Abstract: The invention provides a photographic element comprising a substrate bearing a photographic silver halide emulsion layer having associated therewith a high dye-yield coupler having the formula: ##STR1## wherein: COUP is a photographic coupler residue capable of coupling with oxidized color developer to form a first dye;T is a timing group;m is an integer from 0 to 2;L is a linking group selected from the group consisting of --OC(.dbd.O)--, --OC(.dbd.S)--, --SC(.dbd.O)--, --SC(.dbd.S)--, and --OC(.dbd.NSO.sub.2 R) where R is substituted or unsubstituted alkyl or aryl; andDYE is a releasable second dye or dye precursor having a particular formula including a methine dye chromophore.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: October 10, 1995
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, James J. Seifert, David Hoke, Zheng Z. Wu, David T. Southby, Frank D. Coms
  • Patent number: 5447819
    Abstract: The invention provides a photographic element comprising a support bearing a photographic silver halide emulsion layer having associated therewith a high dye-yield coupler having the formula:COUP--(T).sub.m --L--DYEwhere COUP is the parent group of the coupler capable of reacting at the coupling position with oxidized color developer to form a first dye, T is one or more timing groups with m=1 or 2, L is a linking group selected from the group consisting of --OC(O)--, --OC(S)--, --SC(O)--, --SC(S)--, or --OC(.dbd.N SO.sub.2 R)--, where R is substituted or unsubstituted alkyl or aryl, and DYE is a second dye or precursor thereof, wherein there is present at least one T group that contains a substituent having the formula:--(LINK).sub.p --A--B--(C--D).sub.nwherein:LINK is an alkylene group capable of linking the above group to the group T, where p=0 or 1;A is a member selected from the group consisting of --NHCO--, --N(R')C(O)N(R--)--, --CONH--, --NR'SO.sub.2 --, --SO.sub.2 NR'--, and --OPO.sub.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: September 5, 1995
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, James J. Seifert, David Hoke, Zheng Z. Wu, David T. Southby, Frank D. Coms
  • Patent number: 5306607
    Abstract: A photographic element is disclosed comprising a support bearing at least one photographic silver halide emulsion layer and at least one photographic coupler comprising a pyrazolotriazole moiety (PT), the coupler having the formula ##STR1## wherein PT is a pyrazolotriazole moiety.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: April 26, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-hsuan Chen, Frank D. Coms, Donald Singleton