Patents by Inventor Donald P. Sullivan
Donald P. Sullivan 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: 7853497Abstract: A system for and method of variable annuity contract administration is provided. Each variable annuity contract includes a bonus investment credit percentage, withdrawal charge percentages less than or equal to the bonus investment credit percentage in all contract years, and level asset-based compensation to distributors. In accordance with the invention, data relating to variable annuity contracts are stored in a memory means. A processing means is configured to read and manipulate the stored data to administer the variable annuity contracts from issuance to payout.Type: GrantFiled: August 12, 2005Date of Patent: December 14, 2010Assignee: The Guardian Life Insurance Company of AmericaInventors: Charles G. Fisher, Bruce C. Long, Donald P. Sullivan, Jr.
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Patent number: 7016871Abstract: A system for and method of variable annuity contract administration is provided. Each variable annuity contract includes a bonus investment credit percentage, withdrawal charge percentages less than or equal to the bonus investment credit percentage in all contract years, and level asset-based compensation to distributors. In accordance with the invention, data relating to variable annuity contracts are stored in a memory means. A processing means is configured to read and manipulate the stored data to administer the variable annuity contracts from issuance to payout.Type: GrantFiled: July 25, 2000Date of Patent: March 21, 2006Assignee: The Guardian Life Insurance Company of AmericaInventors: Charles G. Fisher, Bruce C. Long, Donald P. Sullivan, Jr.
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Patent number: 6350550Abstract: A charge generation section of an electrophotographic imaging member, having hydroxygallium phthalocyanine photoconductive pigment and benzimidazole perylene photoconductive pigment in a solvent solution comprising a film forming polymer or copolymer dissolved in a solvent.Type: GrantFiled: April 13, 2001Date of Patent: February 26, 2002Assignee: Xerox CorporationInventors: Satchidanand Mishra, Anthony M. Horgan, Kathleen M. Carmichael, Donald P. Sullivan, Steven Nonkes
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Patent number: 6294300Abstract: A photoconductor includes a charge transport layer coated over a charge generator layer. A hole transport molecule is intentionally added to the charge generator layer preventing migration of hole transport molecules from the charge transport layer to the charge generator layer.Type: GrantFiled: January 19, 2000Date of Patent: September 25, 2001Assignee: Xerox CorporationInventors: Kathleen M. Carmichael, Anthony M. Horgan, Satchidanand Mishra, Donald P. Sullivan
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Patent number: 6171741Abstract: An electrophotographic imaging member is improved in light shock resistance by including in the charge transport layer a light shock resisting additive of triethanolamine, morpholine, an imidazole or mixtures thereof. The imaging member preferably has a charge generating layer containing hydroxygallium phthalocyanine, alkoxygallium phthalocyanine and mixtures thereof as the photogenerating particles. The method of rendering an imaging member including such a charge generating layer acceptably resistant to light shock includes forming a charge transport layer in association with the charge generating layer to contain the light shock resisting additive of triethanolamine, morpholine, an imidazole or mixtures thereof.Type: GrantFiled: January 19, 2000Date of Patent: January 9, 2001Assignee: Xerox CorporationInventors: Kent J. Evans, Kathleen M. Carmichael, James B. O'Leary, Damodar M. Pai, Donald P. Sullivan, Markus R. Silvestri, James C. Lamy
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Patent number: 6071662Abstract: An electrostatographic imaging member including an anti-curl layer, a supporting substrate having an electrically conductive layer, at least one imaging layer, an optional ground strip layer and an optional overcoating layer, the anti-curl layer including a polycarbonate film forming polymer binder containing 3,3,5-trimethylcyclohexane groups in the polycarbonate moiety.Type: GrantFiled: July 23, 1998Date of Patent: June 6, 2000Assignee: Xerox CorporationInventors: Kathleen M. Carmichael, Satish R. Parikh, Donald P. Sullivan, John A. Bergfjord, Sr.
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Patent number: 5830613Abstract: In a process for producing an electrophotographic imaging member, a charge transport layer is coated onto a support and the charge transport layer is laminated onto at least one lower layer of the electrophotographic imaging member. The electrophotographic imaging member includes a preformed transport layer laminated onto a lower layer of the electrophotographic imaging member.Type: GrantFiled: August 31, 1992Date of Patent: November 3, 1998Assignee: Xerox CorporationInventors: Kathleen M. Carmichael, Kent J. Evans, Sharon E. Normandin, Donald P. Sullivan
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Patent number: 5614341Abstract: An electrophotographic imaging member is disclosed including a support substrate having a two layered electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium, a hole blocking layer, an adhesive layer comprising a copolyester film forming resin, a charge generation layer comprising a perylene or a phthalocyanine, an intermediate layer over and in contact with the charge generation layer, the intermediate layer comprising a carbazole polymer and an optional charge transporting molecule, and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.Type: GrantFiled: June 24, 1996Date of Patent: March 25, 1997Assignee: Xerox CorporationInventors: Satchidanand Mishra, Kathleen M. Carmichael, Donald P. Sullivan
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Patent number: 5607802Abstract: An electrophotographic imaging member having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member having a two electrically conductive ground plane layers including a layer including zirconium over a layer including titanium, a siloxane hole blocking layer, an adhesive layer including a polyarylate film forming resin, an intermediate layer over and in contact with the adhesive layer, the intermediate layer including a carbazole polymer, a charge generation layer comprising benzimidazole perylene particles dispersed in a film forming resin binder of poly(4,4'-diphenyl-1,1'-cyclohexane carbonate), and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.Type: GrantFiled: April 29, 1996Date of Patent: March 4, 1997Assignee: Xerox CorporationInventors: Satchidanand Mishra, Kathleen M. Carmichael, Donald P. Sullivan
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Patent number: 5591554Abstract: An electrophotographic imaging member is disclosed including a support substrate having a two layered electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium a hole blocking layer, an adhesive layer comprising a copolyester film forming resin, an intermediate layer over and in contact with the adhesive layer, the intermediate layer comprising a carbazole polymer, a charge generation layer comprising a perylene or a phthalocyanine, and a hole transport layer, said hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from said charge generation layer and transporting said holes through said charge transport layer.Type: GrantFiled: January 11, 1996Date of Patent: January 7, 1997Assignee: Xerox CorporationInventors: Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Edward F. Grabowski, Anthony M. Horgan, William W. Limburg, Sharon E. Normandin, Damodar M. Pai, Richard L. Post, Charles C. Robinson, Brian E. Springett, Donald P. Sullivan, Donald C. VonHoene
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Patent number: 5576130Abstract: An electrophotographic imaging member comprising a support substrate having a two layered electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium, a hole blocking layer, an adhesive layer comprising a thermoplastic polyurethane film forming resin, a charge generation layer comprising perylene or a phthalocyanine particles dispersed in a polycarbonate film forming binder, and a hole transport layer, said hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from said charge generation layer and transporting said holes through said charge transport layer.Type: GrantFiled: January 11, 1996Date of Patent: November 19, 1996Assignee: Xerox CorporationInventors: Robert C. U. Yu, Satchidanand Mishra, Kathleen M. Carmichael, Edward F. Grabowski, Anthony M. Horgan, William W. Limburg, Richard L. Post, Donald P. Sullivan, Donald C. VonHoene, Neil S. Patterson
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Patent number: 5571648Abstract: An electrophotographic imaging member comprising a support substrate having a two electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium,a hole blocking layer, an adhesive layer comprising a copolyester film forming resin, an intermediate layer in contact with said adhesive layer, said intermediate layer comprising a film forming carbazole polymer, a charge generation layer comprising perylene or a phthalocyanine particles dispersed in a film forming polymer binder blend of polycarbonate and carbazole polymer, and a hole transport layer, said hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from said charge generation layer and transporting said holes through said charge transport layer.Type: GrantFiled: January 11, 1996Date of Patent: November 5, 1996Assignee: Xerox CorporationInventors: Satchidanand Mishra, Robert C. U. Yu, Donald P. Sullivan, Kathleen M. Carmichael, Edward F. Grabowski, Anthony M. Horgan, William W. Limburg, Sharon E. Normandin, Richard L. Post, Donald C. VonHoene
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Patent number: 5571647Abstract: An electrophotographic imaging member comprising a support substrate having a two layered electrically conductive outer surface, a hole blocking layer, an adhesive layer comprising a copolyester resin, a charge generation layer comprising photoconductive perylene or phthalocyanine particles dispersed in a film forming resin binder blend comprising polyvinyl butyral copolymer and a copolyester selected from the group consisting of a first copolyester, a second copolyester and mixtures thereof, and a charge transport layer.Type: GrantFiled: January 11, 1996Date of Patent: November 5, 1996Assignee: Xerox CorporationInventors: Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Edward F. Grabowski, Anthony M. Horgan, William W. Limburg, Sharon E. Normandin, Damodar M. Pai, Richard L. Post, Donald P. Sullivan, Donald C. VonHoene
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Patent number: 5571649Abstract: An electrophotographic imaging member comprising a support substrate having a two layered electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium, a hole blocking layer, an adhesive layer comprising a polymer blend comprising a carbazole polymer and a film forming thermoplastic resin selected from the group consisting of copolyester, polyarylate and polyurethane in contiguous contact with the hole blocking layer, a charge generation layer comprising perylene or a phthalocyanine pigment particles dispersed in a polycarbonate film forming binder in contiguous contact with the adhesive layer, and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.Type: GrantFiled: January 11, 1996Date of Patent: November 5, 1996Assignee: Xerox CorporationInventors: Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Edward F. Grabowski, Anthony M. Horgan, William W. Limburg, Sharon E. Normandin, Damodar M. Pai, Richard L. Post, Donald P. Sullivan, Donald C. VonHoene
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Patent number: 5492785Abstract: An electrophotographic imaging member is disclosed having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member comprising a metal ground plane layer comprising at least 50 percent by weight zirconium, a siloxane hole blocking layer, an adhesive layer comprising a polyacrylate film forming resin, a charge generation layer comprising benzimidazole perylene particles dispersed in a film forming resin binder of poly(4,4'-diphenyl-1,1'-cyclohexane carbonate), and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.Type: GrantFiled: January 3, 1995Date of Patent: February 20, 1996Assignee: Xerox CorporationInventors: Sharon E. Normandin, Donald P. Sullivan, Alfred H. Willnow, Kathleen M. Carmichael, Karl V. Thomsen, John A. Bergfjord
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Patent number: 5422213Abstract: An electrophotographic imaging member is characterized by a cross-linked adhesive layer and a charge generating layer applied onto the adhesive layer by solution coating.Type: GrantFiled: August 17, 1992Date of Patent: June 6, 1995Assignee: Xerox CorporationInventors: Robert C. U. Yu, Donald P. Sullivan, Kathleen Carmichael, Neil S. Patterson
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Patent number: 5384222Abstract: A process for the preparation of a photogenerating composition which comprises mixing titanyl phthalocyanine Type IV with the AB block copolymer polystyrene-4-vinyl pyridine in a suitable solvent.Type: GrantFiled: July 1, 1993Date of Patent: January 24, 1995Assignee: Xerox CorporationInventors: Sharon E. Normandin, Kathleen M. Carmichael, Donald P. Sullivan, Nancy A. Listigovers, Trevor I. Martin, Gordon K. Hamer
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Patent number: 5384223Abstract: A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of photogenerating pigments dispersed in a polystyrene/polyvinyl pyridine (A.sub.n -B.sub.m) block copolymer wherein n represents the degree of polymerization of A and m represents the degree of polymerization of B, and a charge transport layer.Type: GrantFiled: July 1, 1993Date of Patent: January 24, 1995Assignee: Xerox CorporationInventors: Nancy A. Listigovers, Trevor I. Martin, Sharon E. Normandin, Kathleen M. Carmichael, Gordon K. Hamer, Donald P. Sullivan
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Patent number: 5356741Abstract: A method of controlling variations in electrical characteristics in electrophotographic imaging devices by eliminating the effect of acidic or basic impurities in a photoconductive element. A solution of a weak acid or weak base and a conjugate salt of the weak acid and the weak base is incorporated into a layer of the photoconductive element. In a process for producing the photoconductive element, a substrate is coated with a first dispersion to form a charge generating layer, and then coated with a second dispersion to form a charge transporting layer, wherein there is incorporated in at least one of the first and second dispersions a solution of a weak acid or weak base and the conjugate salt of the weak acid and weak base in an amount effective to reduce variations in the dark development potential (V.sub.DDP) and background potential (V.sub.BG) characteristics of the imaging devices.Type: GrantFiled: June 3, 1993Date of Patent: October 18, 1994Assignee: Xerox CorporationInventors: Kathleen M. Carmichael, Sharon E. Normandin, Donald P. Sullivan, Edward F. Grabowski, Emery G. Tokoli
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Patent number: H1474Abstract: A process for increasing the imaging cyclic stability of titanyl phthalocyanines by adding to said titanyl phthalocyanines a perylene.Type: GrantFiled: August 13, 1993Date of Patent: August 1, 1995Inventors: Trevor I. Martin, Sharon E. Normandin, Kathleen M. Carmichael, Donald P. Sullivan