Patents by Inventor Richard Lee Daubendiek

Richard Lee Daubendiek 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: 5691127
    Abstract: The invention relates to an emulsion comprising silver halide grains, said grains being tabular and comprising sensitizing dye(s) and silver salt epitaxial deposits, and addenda that include a mercaptotetrazole and a tetraazaindene.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: November 25, 1997
    Assignee: Eastman Kodak Company
    Inventors: Richard Lee Daubendiek, Timothy Richard Gersey, Robert Don Wilson, Joseph George Lighthouse, Joseph Charles Deaton, Myra Toffolon Olm, Donald Lee Black, Xin Wen
  • Patent number: 5681692
    Abstract: The invention relates to a solution for forming silver halide emulsions comprising water, a gelatin containing less than 30 micromoles of methionine per gram of gelatin, and at least one antifoamant selected from the group consisting ofRCO.sub.2 (CH.sub.2 CH.sub.2 O).sub.x OCR (I)whereinRC and CR represent the carbon chain in carboxylic acids with chain lengths of predominantly 12-18 carbon atoms,x has a mean value of 4 to 5 from a mixture with a distribution of values between 2 and 7, and (H.sub.3 CSi) ?(OSi (CH.sub.3).sub.2).sub.d O-- (CH.sub.2 CH.sub.2 CH.sub.2 O--).sub.n C.sub.4 H.sub.9 !.sub.3 (II)wherein the molecular weight is 2500 to 3500 and d and n have average values of less than 15.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: October 28, 1997
    Assignee: Eastman Kodak Company
    Inventors: Michael William Orem, Richard Lee Daubendiek, Douglas Lee Oehlbeck, Joseph George Lighthouse
  • Patent number: 5641618
    Abstract: An improved spectrally sensitized ultrathin tabular grain emulsion is disclosed in which tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, (e) exhibiting an average thickness of less than 0.07 .mu.m, and (f) having latent image forming chemical sensitization sites on the surfaces of the tabular grains, are spectrally sensitized and improved by employing dump iodide host tabular grains and, in forming the surface chemical sensitization sites, at least one silver salt epitaxially located on the tabular grains.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: June 24, 1997
    Assignee: Eastman Kodak Company
    Inventors: Xin Wen, Richard Lee Daubendiek, Donald Lee Black, Joseph Charles Deaton, Timothy Richard Gersey, Joseph George Lighthouse, Myra Toffolon Olm, Robert Don Wilson