Patents by Inventor Frank Dino Coms

Frank Dino 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).

  • Indazole containing coupler
    Patent number: 5962656
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formulaCOUP--T.sup.1 --T.sup.2 --(T.sup.3).sub.b --PUGwhereinCOUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 and T3 are timing or linking groups;T.sup.2 is an indazole timing or linking group which, after release from T.sup.1, functions by electron transfer down a conjugated chain to release T.sup.3 or PUG, and which is represented by the formula: ##STR1## wherein ** denotes the point of attachment to T.sup.1 and *** denotes the point of attachment to T.sup.3 or PUG;R.sup.1 and R.sup.2 are independently selected from hydrogen, or an aliphatic, carbocyclic, or heterocyclic group, or may be bonded together to form a 5, 6, or 7 membered ring;V is independently a substituent group as further defined;q is 0, 1, 2, 3 or 4;b is 0 or 1; andPUG is a photographically useful group.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: October 5, 1999
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Teh Hsuan Chen, Donald Singleton, Jr., Frank Dino Coms
  • Photographic coupler capable of releasing a photographically useful group
    Patent number: 5912110
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formula ##STR1## wherein COUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated chain, or by nucleophilic displacement reaction, to release from HETERO;HETERO is a heterocyclic group containing at least two heteroatoms independently selected from oxygen, nitrogen, or sulfur, wherein one of the heteroatoms is directly attached to T.sup.1 ;R.sup.1 and R.sup.2 are independently selected from hydrogen, or an aliphatic, carbocyclic, or heterocyclic group, or may be bonded together to form a 5, 6, or 7 membered ring; andPUG is a photographically useful group.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: June 15, 1999
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Teh Hsuan Chen, Frank Dino Coms, Donald Singleton, Jr.
  • Photographic element containing a coupler capable of releasing a photograpically useful group through a pyrazole group
    Patent number: 5834604
    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 in the specification.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: November 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Frank Dino Coms, Teh-Hsuan Chen, Donald Singleton, Jr.
  • Photographic element containing a coupler capable of releasing a photographically useful group through a pyrazole group
    Patent number: 5719017
    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 --PUGwhereinthe substituents are as defined herein the specification.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: February 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Frank Dino Coms, Teh-Hsuan Chen, Donald Singleton, Jr.
  • Photographic element containing a coupler capable of releasing a photographically useful group
    Patent number: 5686234
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formulaCOUP--T.sup.1 --T.sup.2 --(T.sup.3).sub.b --PUGwhereinCOUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated or unconjugated chain, or by nucleophilic displacement reaction, to release T.sup.2, T.sup.2 being an indazole timing or linking group which, after release from T.sup.1, functions by electron transfer down a conjugated chain to release T.sup.3 or PUG, and which is represented by the formula: ##STR1## wherein ** denotes the point of attachment to T.sup.1 and *** denotes the point of attachment to T.sup.3 or PUG;R.sup.1 and R.sup.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: November 11, 1997
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Teh Hsuan Chen, Donald Singleton, Jr., Frank Dino Coms
  • Photographic element containing a coupler capable of releasing a photographically useful group
    Patent number: 5670301
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formula ##STR1## wherein COUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated chain, or by nucleophilic displacement reaction, to release from HETERO;HETERO is a heterocyclic group containing at least two heteroatoms independently selected from oxygen, nitrogen, or sulfur, wherein one of the heteroatoms is directly attached to T.sup.1 ;R.sup.1 and R.sup.2 are independently selected from hydrogen, or an aliphatic, carbocyclic, or heterocyclic group, or may be bonded together to form a 5, 6, or 7 membered ring; andPUG is a photographically useful group.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: September 23, 1997
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Teh Hsuan Chen, Frank Dino Coms, Donald Singleton, Jr.