Patents by Inventor Joseph C. Deaton
Joseph C. Deaton 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).
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Patent number: 7101631Abstract: Disclosed is an electroluminescent device comprising a light-emitting layer containing a phosphorescent light emitting material that contains an organometallic complex comprising a metal selected from the group consisting of Ir, Rh, Os, Pt, and Pd and a pyrazole compound fused with at least one aromatic ring. The device provides useful light emissions.Type: GrantFiled: December 5, 2003Date of Patent: September 5, 2006Assignee: Eastman Kodak CompanyInventors: Joseph C. Deaton, Zbyslaw R. Owczarczyk, David J. Giesen
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Patent number: 7090930Abstract: Disclosed is a useful electroluminescent device comprising a cathode, an anode, and therebetween a light emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material is represented by formula (1): X?-A-X???(1) wherein: A is selected from the group consisting of an unsubstituted phenylene ring, a biphenylene group, a terphenylene group, a naphthylene group, and a fluorene group; and each of X? and X? is an independently selected aromatic group bearing an ortho aromatic substituent.Type: GrantFiled: December 5, 2003Date of Patent: August 15, 2006Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, Joseph C. Deaton, David J. Giesen, Christopher T. Brown, Jianmin Shi
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Patent number: 7074502Abstract: A phosphorescent electroluminescent device comprising a light-emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material comprises a boron compound containing at least one boron-nitrogen bond. Such devices provide useful light emissions.Type: GrantFiled: December 5, 2003Date of Patent: July 11, 2006Assignee: Eastman Kodak CompanyInventors: J. Ramon Vargas, Joseph C. Deaton
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Patent number: 7029766Abstract: Disclosed is an electroluminescent device comprising a light-emitting layer containing a light emitting material that contains an organometallic complex comprising a metal selected from the group consisting of Pt, Pd and Ir, and a tridentate (N^C^N) ligand, wherein the tridentate (N^C^N) ligand represents a ligand that coordinates to the metal through a nitrogen donor bond, a carbon-metal bond, and a nitrogen donor bond, in that order, wherein at least one of the nitrogen donors is part of an aromatic ring or an imine group. The invention also includes a display or room lighting device employing the device of the invention and a process of emitting light from the device of the invention. The device of the invention provides good luminance efficiency.Type: GrantFiled: December 5, 2003Date of Patent: April 18, 2006Assignee: Eastman Kodak CompanyInventors: Shouquan Huo, Joseph C. Deaton, Allan F. Sowinski
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Patent number: 7015344Abstract: A process for forming an organometallic cyclometallated Group viiib metal complex comprises reacting a Group viiib metal compound with a heterocyclic compound capable of forming an organometallic cyclometallated complex in the presence of a solvent comprising an aromatic oxygen containing compound.Type: GrantFiled: June 29, 2004Date of Patent: March 21, 2006Assignee: Eastman Kodak CompanyInventor: Joseph C. Deaton
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Patent number: 7005522Abstract: A process for forming a tris-cyclometallated iridium or rhodium complex comprises reacting in the presence of a solvent: a) a bis-cyclometallated complex comprising an Ir (III) or Rh (III) metal, two bidentate ligands, two monodentate ligands and a counterion, and b) a heterocyclic compound capable of forming an organometallic cyclometallated complex.Type: GrantFiled: June 29, 2004Date of Patent: February 28, 2006Assignee: Eastman Kodak CompanyInventor: Joseph C. Deaton
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Patent number: 6917159Abstract: A microcavity OLED device including a substrate; a metallic bottom-electrode layer disposed over the substrate; a metallic top-electrode layer spaced from the metallic bottom-electrode layer; and an organic EL medium structure having a defined thickness, and including a light-emitting layer comprising a host material and at least one dopant disposed between the top-electrode layer and the bottom-electrode layer; wherein one of the metallic electrode layers is light transmissive and the other one is essentially opaque and reflective; wherein the material for reflective metallic electrode layer includes Ag, Au, Al, or alloys thereof, and the material for the light transmissive metallic electrode layer includes Ag, Au, or alloys thereof. The at least one dopant is selected to generate one of red, green, or blue light in the light-emitting layer.Type: GrantFiled: August 14, 2003Date of Patent: July 12, 2005Assignee: Eastman Kodak CompanyInventors: Yuan-Sheng Tyan, Giuseppe Farruggia, Joel D. Shore, Joseph C. Deaton, Steven A. Van Slyke
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Patent number: 6870054Abstract: Disclosed is a process for forming an organometallic cyclometallated iridium compound comprising reacting an iridium halide complex with a silver salt and excess organic cyclometallating ligand in a diol solvent. The process provides better yields and control of desired isomers.Type: GrantFiled: December 5, 2003Date of Patent: March 22, 2005Assignee: Eastman Kodak CompanyInventors: Joseph C. Deaton, Richard L. Parton
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Patent number: 6824895Abstract: Disclosed is an electroluminescent device comprising a cathode, an anode, and, located there between, a light emitting layer (LEL) containing a light emitting material that contains an organometallic complex comprising Pt or Pd metal and a tridentate (N^N^C) ligand, wherein the tridentate (N^N^C) ligand represents a ligand that coordinates to the metal through a nitrogen donor bond, a second nitrogen donor bond, and a carbon-metal bond, in that order, wherein at least one of the nitrogen donors is part of an aromatic ring or an imine group, and wherein the Pt or Pd atom also forms a bond to an anionic ligand group L, wherein L represents alkyl, alkenyl, aryl, or a cyano carbon, or halogen, or RX, wherein X represents a substituent that forms a bond to the Pt or Pd atom and wherein X represents N, O, S, or Se, and R represents a substituent. Such a device provides useful light emissions.Type: GrantFiled: December 5, 2003Date of Patent: November 30, 2004Assignee: Eastman Kodak CompanyInventors: Allan F. Sowinski, Joseph C. Deaton, Shouquan Huo
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Patent number: 6620581Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dyes: (a) a first dye that has at least one anionic substituent and that is capable of spectrally sensitizing a silver halide emulsion; and (b) a second dye that absorbs light at an equal or shorter wavelength than the first dye and that has at least one cationic substituent and that is highly fluorescent.Type: GrantFiled: October 16, 2000Date of Patent: September 16, 2003Assignee: Eastman Kodak CompanyInventors: Richard L. Parton, Joseph C. Deaton, William J. Harrison, Margaret J. Helber
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Patent number: 6331385Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising tabular silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver halide grain and comprising at least one dye that is capable of spectrally sensitizing silver halide and (b) an outer dye layer adjacent to the inner dye layer and comprising at least one dye, wherein the dye layers are held together by non-covalent forces or by in situ bond formation; the outer dye layer adsorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption wavelength of the inner dye layer.Type: GrantFiled: September 11, 1998Date of Patent: December 18, 2001Assignee: Eastman Kodak CompanyInventors: Joseph C. Deaton, Richard L. Parton, Thomas L. Penner, William J. Harrison, David E. Fenton
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Patent number: 6159676Abstract: The invention relates to an emulsion comprising tabular grains of greater than or equal to about 3.7 .mu.m area weighted mean equivalent circular diameter and thiourea sensitizer having the structural formula: ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 independently can represent an alkylene, cycloalkylene, carbocyclic arylene or heterocyclic arylene, alarylene or aralkylene group; or taken together with the nitrogen atom to which they are attached, R.sub.1 and R.sub.2 or R.sub.3 and R.sub.4 can complete a 5- to 7-member heterocyclic ring; andeach of A.sub.1, A.sub.2, A.sub.3, and A.sub.4 independently is hydrogen or represents a carboxylic, sulfinic, sulfonic, hydroxamic, mercapto, sulfonamido or primary or secondary amino nucleophilic group;with the proviso that at least one of A.sub.1 R.sub.1 to A.sub.4 R.sub.4 contains a nucleophilic group bonded to a urea nitrogen atom through a 2- or 3-member chain.Type: GrantFiled: December 5, 1997Date of Patent: December 12, 2000Assignee: Eastman Kodak CompanyInventors: Ming Jye Lin, Kenneth J. Lushington, Frederick C. Derks, Joseph C. Deaton
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Patent number: 5629144Abstract: The invention provides a radiation-sensitive silver halide emulsion comprisingsilver halide grains including 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 rains, anda spectral sensitizing dye adsorbed to the surfaces of the tabular grains,wherein the surface chemical sensitization sites include at least one silver salt epitaxially located on said tabular rains and wherein said grains further comprise a mercapto compound represented by Formula III ##STR1## where R.sup.1 is an aliphatic or aromatic radical containing up to 20 carbon atoms.Type: GrantFiled: December 23, 1994Date of Patent: May 13, 1997Assignee: Eastman Kodak CompanyInventors: Richard L. Daubendiek, Donald L. Black, Joseph C. Deaton, Timothy R. Gersey, Joseph G. Lighthouse, Myra T. Olm, Xin Wen, Robert D. Wilson
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Patent number: 5614358Abstract: A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including 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, and (e) exhibiting an average thickness of less than 0.07 .mu.m.It has been observed that increased speed and contrast as well as improvements in speed-granularity relationships can be realized when the surface chemical sensitization sites include epitaxially deposited silver halide protrusions forming epitaxial junctions with the tabular grains, the protrusions (a) being located on up to 50 percent of the surface area of the tabular grains, (b) having a higher overall solubility than at least that portion of the tabular grains forming epitaxial junctions with the protrusions, and (c) forming a face centered cubic crystal lattice.Type: GrantFiled: May 15, 1995Date of Patent: March 25, 1997Assignee: Eastman Kodak CompanyInventors: Robert D. Wilson, Myra T. Olm, Richard L. Daubendiek, Donald L. Black, Joseph C. Deaton, Timothy R. Gersey, Joseph G. Lighthouse, Xin Wen
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Patent number: 5612175Abstract: A radiation-sensitive spectrally sensitized tabular grain emulsion is disclosed which exhibits improved speed and contrast. The tabular grains have {111} major faces, contain greater than 70 mole percent bromide and up to 10 mole percent iodide, based on silver, account for greater than 90 percent of total grain projected area, and have an average equivalent circular diameter of at least 3.5 .mu.m. The tabular grains have latent image forming chemical sensitization sites on their surfaces including epitaxially deposited silver halide protrusions of a face centered cubic rock salt crystal lattice structure forming epitaxial junctions with the tabular grains.Type: GrantFiled: January 26, 1996Date of Patent: March 18, 1997Assignee: Eastman Kodak CompanyInventors: Lyn M. Eshelman, Paul J. Madigan, Joseph C. Deaton, David A. Dumont, Michael G. Antoniades, Sharon G. Johnston
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Patent number: 5582965Abstract: A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, 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, and (e) exhibiting an average thickness of less than 0.07 .mu.m.Type: GrantFiled: May 26, 1995Date of Patent: December 10, 1996Assignee: Eastman Kodak CompanyInventors: Joseph C. Deaton, Richard L. Daubendiek, Donald L. Black, Timothy R. Gersey, Joseph G. Lighthouse, Myra T. Olm, Xin Wen, Robert D. Wilson
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Patent number: 5576171Abstract: A chemically and spectrally sensitized tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, 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, and (f) exhibiting an average thickness in the range of from less than 0.3 .mu.m to at least 0.07 .mu.m.Type: GrantFiled: May 15, 1995Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Myra T. Olm, Richard L. Daubendiek, Joseph C. Deaton, Donald L. Black, Timothy R. Gersey, Joseph G. Lighthouse, Xin Wen, Robert D. Wilson
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Patent number: 5576168Abstract: A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, 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, and (e) exhibiting an average thickness of less than 0.07 .mu.m.Type: GrantFiled: August 26, 1994Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Richard L. Daubendiek, Donald L. Black, Joseph C. Deaton, Timothy R. Gersey, Joseph G. Lighthouse, Myra T. Olm, Xin Wen, Robert D. Wilson
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Patent number: 5573902Abstract: A chemically and spectrally sensitized tabular grain emulsion is disclosed including tabular grains (a) having major faces, (b) containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, 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, and (f) exhibiting an average thickness in the range of from less than 0.3 .mu.m to at least 0.07 .mu.m.Type: GrantFiled: May 15, 1995Date of Patent: November 12, 1996Assignee: Eastman Kodak CompanyInventors: Richard L. Daubendiek, Joseph C. Deaton, Donald L. Black, Timothy R. Gersey, Joseph G. Lighthouse, Myra T. Olm, Xin Wen, Robert D. Wilson
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Patent number: 5536632Abstract: A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including 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, and (e) exhibiting an average thickness of less than 0.07 .mu.m.Improved sensitivity is observed when the surface chemical sensitization sites include silver halide protrusions of a face centered cubic crystal lattice structure forming epitaxial junctions with the tabular grains and having a higher overall solubility than at least that portion of the tabular grains forming epitaxial junctions with the protrusions and a sensitivity enhancing combination of dopants are contained in the silver halide grains including a first sensitivity enhancing dopant capable of providing shallow electron trapping sites and a second sensitivity enhancing selenium dopant.Type: GrantFiled: May 15, 1995Date of Patent: July 16, 1996Assignee: Eastman Kodak CompanyInventors: Xin Wen, Richard L. Daubendiek, Donald L. Black, Joseph C. Deaton, Timothy R. Gersey, Joseph G. Lighthouse, Myra T. Olm, Robert D. Wilson