Patents by Inventor Terry L. Bluhm
Terry L. Bluhm 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: 7989127Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the charge transport layer contains a carbazole.Type: GrantFiled: April 30, 2008Date of Patent: August 2, 2011Assignee: Xerox CorporationInventors: Jin Wu, Terry L Street, Terry L Bluhm, Kent J Evans, Edward F Grabowski, Susan M Vandusen, Min-Hong Fu, Kathleen M Carmichael
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Patent number: 7923185Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the charge transport layer contains a pyrazine.Type: GrantFiled: April 30, 2008Date of Patent: April 12, 2011Assignee: Xerox CorporationInventors: Jin Wu, Terry L Street, Terry L Bluhm, Kent J Evans, Edward F Grabowski, Susan M Vandusen, Min-Hong Fu, Kathleen M Carmichael
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Patent number: 7785759Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer containing at least one charge transport component, and wherein the charge transport layer also contains a thiadiazole.Type: GrantFiled: March 31, 2008Date of Patent: August 31, 2010Assignee: Xerox CorporationInventors: Jin Wu, Terry L Street, Terry L Bluhm, Kent J Evans, Edward F Grabowski, Susan M Vandusen, Min-Hong Fu, Kathleen M Carmichael
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Publication number: 20090274968Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the charge transport layer contains a pyrazine.Type: ApplicationFiled: April 30, 2008Publication date: November 5, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, Terry L. Street, Terry L. Bluhm, Kent J. Evans, Edward F. Grabowski, Susan M. Vandusen, Min-Hong Fu, Kathleen M. Carmichael
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Publication number: 20090274970Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the charge transport layer contains a carbazole.Type: ApplicationFiled: April 30, 2008Publication date: November 5, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, Terry L. Street, Terry L. Bluhm, Kent J. Evans, Edward F. Grabowski, Susan M. Vandusen, Min-Hong Fu, Kathleen M Carmichael
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Publication number: 20090246667Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer containing at least one charge transport component, and wherein the charge transport layer also contains a thiadiazole.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, Terry L. Street, Terry L. Bluhm, Kent J. Evans, Edward F. Grabowski, Susan M. Vandusen, Min-Hong Fu, Kathleen M. Carmichael
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Patent number: 5420268Abstract: A layered photoconductive imaging member comprised of a supporting substrate, a photogenerating layer and a charge transport layer, and wherein the photogenerating layer contains Type IV oxytitanium phthalocyanine obtained by a process which comprises the hydrolysis of a dihalotitanium phthalocyanine in a strong acid.Type: GrantFiled: May 27, 1993Date of Patent: May 30, 1995Assignee: Xerox CorporationInventors: Denis Desilets, Terry L. Bluhm, Cheng-Kuo Hsiao
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Patent number: 5382493Abstract: A process for the preparation of Type II dihydroxygermanium phthalocyanine which comprises treating dihalogermanium phthalocyanine or dialkoxygermanium phthalocyanine with a strong acid, followed by treatment with water, and subsequent optional washing with an organic base and an aprotic organic solvent.Type: GrantFiled: August 12, 1993Date of Patent: January 17, 1995Assignee: Xerox CorporationInventors: Beng S. Ong, Terry L. Bluhm, Cheng-Kuo Hsiao, Duff James M.
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Patent number: 5350844Abstract: A process for the preparation of a more perfect crystalline form of the Type I polymorph of titanyl phthalocyanine which comprises dissolving a precursor titanyl phthalocyanine Type I in a solution of trihaloacetic acid and alkylene chloride; adding the resultant solution to a solvent thereby enabling precipitation of Type X titanyl phthalocyanine; separating the titanyl phthalocyanine Type X from the solution; followed by a first washing with an organic solvent and a second washing with water; slurrying the resulting Type X titanyl phthalocyanine in an organic solvent enabling conversion of said Type X to Type IV titanyl phthalocyanine; and thereafter, subjecting the Type IV titanyl phthalocyanine obtained to treatment with an organic solvent to enable said crystalline form of titanyl phthalocyanine Type I.Type: GrantFiled: March 1, 1993Date of Patent: September 27, 1994Assignee: Xerox CorporationInventors: Trevor I. Martin, James D. Mayo, Nancy A. Listigovers, Cheng K. Hsiao, Terry L. Bluhm, Sharon E. Normandin, Kathleen M. Carmichael
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Patent number: 5334478Abstract: A layered photoconductive imaging member comprised of a supporting substrate, a photogenerating layer and a charge transport layer, and wherein the photogenerating layer contains Type IV titanyl phthalocyanine obtained by a process which comprises the addition of an oxytitanium phthalocyanine containing a mixture of Type I and Type II titanyl phthalocyanine polymorphs, or a substantially pure Type II titanyl phthalocyanine polymorph to a solvent comprised of a trihaloacetic acid and an alkylene halide; adding the resultant solution to a mixture which enables precipitation of Type X oxytitanium phthalocyanine; separating the Type X oxytitanium phthalocyanine from the solution; and thereafter subjecting the Type X oxytitanium phthalocyanine obtained to treatment with a halobenzene, followed by the separation of the said Type IV oxytitanium phthalocyanine.Type: GrantFiled: September 14, 1992Date of Patent: August 2, 1994Assignee: Xerox CorporationInventors: Denis Desilets, Trevor I. Martin, James D. Mayo, Terry L. Bluhm, Cheng-Kuo Hsiao
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Patent number: 5330867Abstract: A layered imaging member comprised of a photogenerating layer of titanyl phthalocyanine prepared by depositing amorphous titanyl phthalocyanine on a substrate maintained at a temperature of from below 25.degree. to about minus 30.degree. C.; and contacting the substrate product with an aliphatic alcohol.Type: GrantFiled: August 24, 1992Date of Patent: July 19, 1994Assignee: Xerox CorporationInventors: Cheng-Kuo Hsiao, Ah-Mee Hor, James D. Mayo, Giuseppa Baranyi, Gregory J. Kovacs, Terry L. Bluhm, Zoran D. Popovic, B. W. Anissa Yeung
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Patent number: 5322754Abstract: Disclosed is the X polymorphic form of titanyl phthalocyanine.Type: GrantFiled: March 24, 1993Date of Patent: June 21, 1994Assignee: Xerox CorporationInventors: James M. Duff, James D. Mayo, Cheng-Kuo Hsiao, Ah-Mee Hor, Terry L. Bluhm, Gordon K. Hamer, Peter M. Kazmaier
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Patent number: 5288574Abstract: A layered photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of titanyl phthalocyanine photogenerating pigments and thereover a charge transport layer, and wherein said photogenerating pigments are prepared by a process which comprises the formation of a slurry comprised of dihalotitanium phthalocyanine in a mixture comprised of a trihaloacetic acid and an alkylene chloride; adding the resultant slurry to a mixture of an aliphatic alcohol and water enabling hydrolysis whereby Type X oxytitanium phthalocyanine is obtained; separating the Type X oxytitanium phthalocyanine from the slurry; and thereafter subjecting the Type X oxytitanium phthalocyanine obtained to treatment with a halobenzene, followed by the separation of Type IV oxytitanium phthalocyanine photogenerating pigments.Type: GrantFiled: September 14, 1992Date of Patent: February 22, 1994Assignee: Xerox CorporationInventors: Denis Desilets, Trevor I. Martin, Cheng-Kuo Hsiao, Terry L. Bluhm
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Patent number: 5275903Abstract: Disclosed is a composition comprising a thermotropic liquid crystalline polymer and a modifying component selected from the group consisting of plasticizing agents, antiplasticizing agents, small molecule liquid crystalline materials, and mixtures thereof. Also disclosed is a toner composition comprising a thermotropic liquid crystalline resin, a colorant, and a modifying component selected from the group consisting of plasticizing agents, antiplasticizing agents, small molecule liquid crystalline materials, and mixtures thereof.Type: GrantFiled: May 7, 1992Date of Patent: January 4, 1994Assignee: Xerox CorporationInventors: Pudupadi R. Sundararajan, Terry L. Bluhm, Stephan Drappel
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Patent number: 5225551Abstract: An imaging member comprised of a supporting substrate, a photogenerating layer comprised of a titanyl phthalocyanine of the type selected from the group consisting of Type IV, Type X, Type Z-1, and Type Z-2, prepared by the process which comprises dissolving a titanyl phthalocyanine in a solution of trifluoroacetic acid and methylene chloride; adding the resultant solution to a solvent or solvent mixture that will enable precipitation; and separating the product titanyl phthalocyanine from the solution followed by an optional washing, and a charge transport layer.Type: GrantFiled: October 5, 1992Date of Patent: July 6, 1993Assignee: Xerox CorporationInventors: James M. Duff, James D. Mayo, Cheng-Kuo Hsiao, Ah-Mee Hor, Terry L. Bluhm, Gordon K. Hamer, Peter M. Kazmaier
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Patent number: 5215847Abstract: Toner with well-dispersed component subparticles is prepared by a method wherein an attritor is initially used to disperse the subparticles in a core monomer, and attrition is continued during initial polymerization of the monomer. Interfacial polymerization is then performed in a preferred embodiment to form encapsulated toner particles.Type: GrantFiled: September 3, 1991Date of Patent: June 1, 1993Assignee: Xerox CorporationInventors: Raj Patel, Hadi K. Mahabadi, Terry L. Bluhm, Sandra J. Gardner
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Patent number: 5206359Abstract: A process for the preparation of titanyl phthalocyanine which comprises the treatment of titanyl phthalocyanine Type X with a halobenzene.Type: GrantFiled: April 11, 1991Date of Patent: April 27, 1993Assignee: Xerox CorporationInventors: James D. Mayo, James M. Duff, Trevor I. Martin, Terry L. Bluhm, Cheng K. Hsiao, Ah-Mee Hor
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Patent number: 5189155Abstract: A process for the preparation of titanyl phthalocyanine Type I which comprises the reaction of titanium tetraalkoxide and diminoisoindolene in the presence of a halonaphthalene solvent.Type: GrantFiled: April 11, 1991Date of Patent: February 23, 1993Assignee: Xerox CorporationInventors: James D. Mayo, Terry L. Bluhm, Cheng K. Hsiao, Trevor I. Martin, Ah-Mee Hor
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Patent number: 5182382Abstract: A process for the preparation of titanyl phthalocyanine Type X which comprises dissolving titanyl phthalocyanine Type I in a solution of trifluoroacetic acid and methylene chloride; adding the resultant solution to a solvent enabling precipitation of Type X titanyl phthalocyanine; separating the titanyl phthalocyanine Type X from the solution; followed by a first washing with an organic solvent and a second washing with water; and thereafter a solvent treatment with fluorobenzene.Type: GrantFiled: May 28, 1991Date of Patent: January 26, 1993Assignee: Xerox CorporationInventors: James D. Mayo, James M. Duff, Terry L. Bluhm, Cheng K. Hsiao
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Patent number: 5166339Abstract: Disclosed are various titanyl phthalocyanine polymorphs such as Type I, Type II, Type III, Type IV, Type Z-1, Type Z-2, and Type X, which phthalocyanines can be prepared by dissolving a titanyl phthalocyanine in a solution of trifluoroacetic acid and a chlorinated hydrocarbon. There is then added to the resulting solution a solvent that will enable precipitation of the titanyl phthalocyanine. Subsequently, the titanyl phthalocyanine product can be separated from the solution by, for example, filtration and the product titanyl phthalocyanine obtained can be washed to remove any residual solvent.Type: GrantFiled: June 4, 1990Date of Patent: November 24, 1992Assignee: Xerox CorporationInventors: James M. Duff, James D. Mayo, Cheng-Kuo Hsiao, Ah-Mee Hor, Terry L. Bluhm, Gordon K. Hamer, Peter M. Kazmaier