Patents by Inventor Robert P. Altavela
Robert P. Altavela 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: 9228161Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.Type: GrantFiled: July 11, 2014Date of Patent: January 5, 2016Assignee: XEROX CORPORATIONInventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
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Publication number: 20140323377Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.Type: ApplicationFiled: July 11, 2014Publication date: October 30, 2014Inventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
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Patent number: 8372568Abstract: The disclosed embodiments are directed to a method for removing photoreceptor coatings from a rigid substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor, in order to recover it for re-use in photoreceptor manufacturing. More specifically, the invention discloses a photoreceptor substrate recovery methodology that includes the creation of an inner release layer over the substrate and followed by subjecting the rejected or used electrophotographic photoreceptor to a step of soaking in a non-toxic and environmentally-friendly stripping solution that separates the coatings from the substrate.Type: GrantFiled: November 5, 2009Date of Patent: February 12, 2013Assignee: Xerox CorporationInventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
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Patent number: 8361685Abstract: The disclosed embodiments are directed to processes for removing photoreceptor coatings from a substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor. More specifically, the present embodiments discloses a photoreceptor coatings removal process comprises subjecting an electrophotographic photoreceptor to a stripping solution that separates the coatings from the substrate.Type: GrantFiled: November 5, 2009Date of Patent: January 29, 2013Assignee: Xerox CorporationInventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
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Patent number: 8142968Abstract: The disclosed embodiments are directed to an electrophotographic photoreceptor having a release layer. More particularly, the disclosure relates to an electrophotographic photoreceptor having a release layer which comprises an organosilane compound coated over the substrate surface. Other embodiments include methods for coating layer removal using a specifically configured electrophotographic photoreceptor having a release layer and methods for recovering a charge transport molecule.Type: GrantFiled: June 17, 2009Date of Patent: March 27, 2012Assignee: Xerox CorporationInventors: Robert P. Altavela, Yuhua Tong, Edward F. Grabowski, Kent J. Evans, Adilson Ramos, Nancy Belknap, Helen R. Cherniack
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Publication number: 20110151363Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.Type: ApplicationFiled: December 17, 2009Publication date: June 23, 2011Applicant: XEROX CORPORATIONInventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
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Publication number: 20110104603Abstract: The disclosed embodiments are directed to processes for removing photoreceptor coatings from a substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor. More specifically, the present embodiments discloses a photoreceptor coatings removal process comprises subjecting an electrophotographic photoreceptor to a stripping solution that separates the coatings from the substrate.Type: ApplicationFiled: November 5, 2009Publication date: May 5, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
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Publication number: 20110104602Abstract: The disclosed embodiments are directed to a method for removing photoreceptor coatings from a rigid substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor, in order to recover it for re-use in photoreceptor manufacturing. More specifically, the invention discloses a photoreceptor substrate recovery methodology that includes the creation of an inner release layer over the substrate and followed by subjecting the rejected or used electrophotographic photoreceptor to a step of soaking in a non-toxic and environmentally-friendly stripping solution that separates the coatings from the substrate.Type: ApplicationFiled: November 5, 2009Publication date: May 5, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
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Publication number: 20100323288Abstract: The disclosed embodiments are directed to an electrophotographic photoreceptor having a release layer. More particularly, the disclosure relates to an electrophotographic photoreceptor having a release layer which comprises an organosilane compound coated over the substrate surface. Other embodiments include methods for coating layer removal using a specifically configured electrophotographic photoreceptor having a release layer and methods for recovering a charge transport molecule.Type: ApplicationFiled: June 17, 2009Publication date: December 23, 2010Applicant: XEROX CORPORATIONInventors: Robert P. Altavela, Yuhua Tong, Edward F. Grabowski, Kent J. Evans, Adilson Ramos, Nancy Belknap, Helen R. Cherniack
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Patent number: 7799140Abstract: The disclosed embodiments are directed to processes for removing photoreceptor coatings from a substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor. More specifically, the invention discloses a photoreceptor coatings removal process comprises subjecting an electrophotographic photoreceptor to a stripping solution that separates the coatings from the substrate.Type: GrantFiled: June 17, 2009Date of Patent: September 21, 2010Assignee: Xerox CorporationInventors: Robert P. Altavela, Yuhua Tong, Edward F. Grabowski, Kent J. Evans, Adilson Ramos, Nancy Belknap, Helen R. Cherniack
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Publication number: 20100086866Abstract: The presently disclosed embodiments are directed to an improved imaging member exhibiting little or no plywood print defect comprising an undercoat layer formed from an undercoat layer dispersion comprising silica microspheres, a binder resin and a solvent, and a method for making the undercoat layer.Type: ApplicationFiled: October 8, 2008Publication date: April 8, 2010Applicant: XEROX CORPORATIONInventors: Francisco J. Lopez, Man K. Yip, Robert P. Altavela, Adilson P. Ramos
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Patent number: 7651827Abstract: An imaging member containing a substrate, and an outer layer containing a phosphorus-containing lubricant, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retentive surface to develop said electrostatic latent image to form a developed image on said charge-retentive surface; a transfer component for transferring said developed image from said charge retentive surface to another member or a copy substrate; and a fusing member to fuse said developed image to said copy substrate.Type: GrantFiled: July 28, 2005Date of Patent: January 26, 2010Assignee: Xerox CorporationInventors: Jin Wu, Robert P. Altavela, John J. Wilbert, Linda Ferrarese, Liang-Bih Lin
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Patent number: 7645555Abstract: An electrophotographic photoreceptor and method for forming a photoreceptor is disclosed which is provided with an anticorrosion layer on the interface between the supporting substrate surface and the undercoat layer. The photoreceptor has a high mechanical strength and minimizes defects in print for longer periods of time.Type: GrantFiled: April 8, 2009Date of Patent: January 12, 2010Assignee: Xerox CorporationInventors: Liang-Bih Lin, Philip G. Perry, Andronique Ioannidis, William G. Herbert, David M. Skinner, Jin Wu, Kendra Michele Giza, Nancy Belknap, Yonn Rasmussen, Geoffrey M. T. Foley, John F. Yanus, Jennifer Y. Hwang, Robert P. Altavela
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Publication number: 20090214978Abstract: An electrophotographic photoreceptor and method for forming a photoreceptor is disclosed which is provided with an anticorrosion layer on the interface between the supporting substrate surface and the undercoat layer. The photoreceptor has a high mechanical strength and minimizes defects in print for longer periods of time.Type: ApplicationFiled: April 8, 2009Publication date: August 27, 2009Applicant: XEROX CORPORATIONInventors: Liang-Bih LIN, Philip G. PERRY, Andronique IOANNIDIS, William G. HERBERT, David M. SKINNER, Jin WU, Kendra Michele GIZA, Nancy BELKNAP, Yonn RASMUSSEN, Geoffrey M. T. FOLEY, John F. YANUS, Jennifer Y. HWANG, Robert P. ALTAVELA
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Patent number: 7544451Abstract: An imaging member containing a substrate, and an outer layer containing an antioxidant lubricant additive, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retentive surface to develop said electrostatic latent image to form a developed image on said charge-retentive surface; a transfer component for transferring said developed image from said charge-retentive surface to another member or a copy substrate; and a fusing member to fuse said developed image to said copy substrate.Type: GrantFiled: July 28, 2005Date of Patent: June 9, 2009Assignee: Xerox CorporationInventors: Jin Wu, Robert P. Altavela, James R. Backus, Liang-Bih Lin
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Patent number: 7534535Abstract: An electrophotographic photoreceptor is disclosed which is provided with an anti-corrosion layer on the interface between the substrate surface and hole blocking layer. The photoreceptor has high mechanical strength and minimizes defects in print for longer periods of time.Type: GrantFiled: November 23, 2004Date of Patent: May 19, 2009Assignee: Xerox CorporationInventors: Liang-Bih Lin, Philip G. Perry, Andronique Ioannidis, William G. Herbert, David M. Skinner, Jin Wu, Kendra Michele Giza, Nancy Belknap, Yonn Rasmussen, Geoffrey M. T. Foley, John F. Yanus, Jennifer Y. Hwang, Robert P. Altavela
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Patent number: 7527902Abstract: An imaging member containing a substrate, and an outer layer containing solid and liquid lubricants, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retentive surface to develop said electrostatic latent image to form a developed image on said charge-retentive surface; a transfer component for transferring said developed image from said charge-retentive surface to another member or a copy substrate; and a fusing member to fuse said developed image to said copy substrate.Type: GrantFiled: July 28, 2005Date of Patent: May 5, 2009Assignee: Xerox CorporationInventors: Jin Wu, Geoffrey M T. Foley, Jodie L. Watson, Liang-Bih Lin, Edward C. Savage, Robert P. Altavela, Linda Ferrarese, Marc J. Livecchi
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Patent number: 7468208Abstract: An imaging member containing a substrate, and a layer containing a polytetrafluoroethylene and a polyol ester, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retentive surface to develop said electrostatic latent image to form a developed image on said charge-retentive surface; a transfer component for transferring said developed image from said charge-retentive surface to another member or a copy substrate; and a fusing member to fuse said developed image to said copy substrate.Type: GrantFiled: July 28, 2005Date of Patent: December 23, 2008Assignee: Xerox CorporationInventors: Jin Wu, Geoffrey M T. Foley, Jodie L. Watson, Liang-Bih Lin, Edward C. Savage, Robert P. Altavela, Linda Ferrarese, Marc J. Livecchi
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Patent number: 7427440Abstract: An imaging member containing a substrate, and an outer layer containing a polyether lubricant, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retentive surface to develop said electrostatic latent image to form a developed image on said charge-retentive surface; a transfer component for transferring said developed image from said charge-retentive surface to another member or a copy substrate; and a fusing member to fuse said developed image to said copy substrate.Type: GrantFiled: July 28, 2005Date of Patent: September 23, 2008Assignee: Xerox CorporationInventors: Jin Wu, Geoffrey M T. Foley, Liang-Bih Lin, Edward C. Savage, Robert P. Altavela, Marc J. Livecchi
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Patent number: 7368210Abstract: An imaging member containing a substrate, and an outer layer containing a zinc diethyldithiophosphate, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retentive surface to develop said electrostatic latent image to form a developed image on said charge-retentive surface; a transfer component for transferring said developed image from said charge-retentive surface to another member or a copy substrate; and a fusing member to fuse said developed image to said copy substrate.Type: GrantFiled: July 28, 2005Date of Patent: May 6, 2008Assignee: Xerox CorporationInventors: Jin Wu, Linda Ferrarese, Robert P. Altavela, Liang-Bih Lin