Patents by Inventor Stephen T. Avery
Stephen T. Avery 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: 8173341Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor layer curling.Type: GrantFiled: May 1, 2009Date of Patent: May 8, 2012Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Yuhua Tong
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Patent number: 8168356Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor upward curling.Type: GrantFiled: May 1, 2009Date of Patent: May 1, 2012Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Yuhua Tong, Michael Roetker, Edward F. Grabowski, Jimmy E. Kelly
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Patent number: 8124305Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor layer curling.Type: GrantFiled: May 1, 2009Date of Patent: February 28, 2012Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Edward F. Grabowski, Terry L. Street, Jimmy E. Kelly, Joellen Simone
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Publication number: 20110318675Abstract: The presently disclosed embodiments are directed to layer(s) that are useful in imaging apparatus members and components, for use in electrophotography, including digital, apparatuses. More particularly, the present embodiments provide the negatively charged electrophotographic imaging members with a novel cross-linked charge blocking undercoat layer, which is created to comprise of a binary composition of melamine and formaldehyde or a triple composition consisting of a hydroxyl functional acrylic polyol binder and a methylolation of melamine-formaldehyde, and methods for making the same. The charge blocking layer provides stabilized cyclic photo-electrical properties, enhanced mechanical adhesion bonding, and improved copy print out quality for service life extension.Type: ApplicationFiled: June 25, 2010Publication date: December 29, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Yuhua Tong, Min-Hong Fu, Stephen T. Avery
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Patent number: 8084173Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.Type: GrantFiled: April 7, 2008Date of Patent: December 27, 2011Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Kent J. Evans
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Publication number: 20110255904Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.Type: ApplicationFiled: June 14, 2011Publication date: October 20, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Kathleen M. Carmichael
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Publication number: 20110256474Abstract: The presently disclosed embodiments relate in general to electrostatography comprising improved features in the flexible imaging member that enhance function when used in the electrostatographic imaging system. These embodiments pertain, more particularly, to a structurally simplified curl-free flexible electrostatographic imaging member belt containing a stress/strain free ground strip layer and stress/strain free imaging layer(s) to improve dynamic belt cyclic motion quality and extend service life.Type: ApplicationFiled: April 16, 2010Publication date: October 20, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Yuhua Tong, Michael S. Roetker, Jimmy E. Kelly, Kyle B. Tallman
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Publication number: 20110229808Abstract: Present embodiments are directed to the improvement of flexible imaging members used in electrophotography. More particularly, embodiments pertain to a structurally simplified curl-free flexible electrophotographic imaging member without the need for an anticurl back coating, having a functionally improved top outermost exposed slippery imaging layer which furthers extends service life, and provides a process for making and using the member.Type: ApplicationFiled: March 17, 2010Publication date: September 22, 2011Applicant: Xerox CorporationInventors: Robert C. U. Yu, Yuhua Tong, Stephen T. Avery
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Publication number: 20110207038Abstract: A flexible imaging member comprising a slippery charge transport layer including a novel low surface energy polymer binder and a charge transport compound in the layer. In specific embodiments, the novel low surface energy polymer binder in the charge transport layer is a bisphenol A polycarbonate containing short polysiloxane segments present in the polycarbonate backbone—thus eliminating the light scattering effect to render optical clarity—and the charge transport compound is a diamine hole transporting species. The imaging member does include an anticurl back coating to maintain flatness.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Yuhua Tong, Stephen T. Avery, Jimmy E. Kelly
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Patent number: 8003285Abstract: Embodiments pertain to a flexible imaging member used in electrostatography and processes for making and using the imaging member. More particularly, the embodiments pertain to a structurally simplified flexible electrophotographic imaging member that has reasonable flatness and exhibits good performance without the need of an anticurl back coating layer.Type: GrantFiled: August 31, 2009Date of Patent: August 23, 2011Assignee: Xerox CorporationInventors: Robert C. U. Yu, Yuhua Tong, Stephen T. Avery, Michael S. Roetker
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Patent number: 7998646Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.Type: GrantFiled: April 7, 2008Date of Patent: August 16, 2011Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Kathleen M. Carmichael
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Publication number: 20110176831Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.Type: ApplicationFiled: March 29, 2011Publication date: July 21, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Edward F. Grabowski, Kathleen M. Carmichael, Stephen T. Avery, Satish Parikh
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Publication number: 20110129769Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of an ozone quenching compound into the charge transport layer to quench the corona effluents and protect the polycarbonate binder of the charge transport layer from being attacked by ozone species, thereby enhancing wear resistance and fatigue cracking.Type: ApplicationFiled: November 30, 2009Publication date: June 2, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Jimmy E. Kelly
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Patent number: 7943278Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.Type: GrantFiled: April 7, 2008Date of Patent: May 17, 2011Assignee: Xerox CorporationInventors: Robert C. U. Yu, Edward F. Grabowski, Kathleen M. Carmichael, Stephen T. Avery, Satish Parikh
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Publication number: 20110053068Abstract: Embodiments pertain to a flexible imaging member used in electrostatography and processes for making and using the imaging member. More particularly, the embodiments pertain to a structurally simplified flexible electrophotographic imaging member that has reasonable flatness and exhibits good performance without the need of an anticurl back coating layer.Type: ApplicationFiled: August 31, 2009Publication date: March 3, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Yuhua Tong, Stephen T. Avery, Michael S. Roetker
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Publication number: 20110053069Abstract: Embodiments pertain to a flexible imaging member used in electrostatography and processes for making and using the imaging member. More particularly, the embodiments pertain to a structurally simplified flexible electrophotographic imaging member that has reasonable flatness and exhibits good performance without the need of an anticurl back coating layer.Type: ApplicationFiled: August 31, 2009Publication date: March 3, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Yuhua Tong, Stephen T. Avery, Michael S. Roetker, Jimmy E. Kelly
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Publication number: 20100304285Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the development of a structurally simplified flexible electrophotographic imaging member without the need of an anticurl back coating layer and a post treatment process for effecting the imaging member service life extension in the field.Type: ApplicationFiled: June 1, 2009Publication date: December 2, 2010Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Michael S. Roetker
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Publication number: 20100279217Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor upward curling.Type: ApplicationFiled: May 1, 2009Publication date: November 4, 2010Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Yuhua Tong, Michael Roetker, Edward F. Grabowski, Jimmy E. Kelly
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Publication number: 20100279219Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor layer curling.Type: ApplicationFiled: May 1, 2009Publication date: November 4, 2010Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Edward F. Grabowski, Terry L. Street, Jimmy E. Kelly, Joellen Simone
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Publication number: 20100279218Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor layer curling.Type: ApplicationFiled: May 1, 2009Publication date: November 4, 2010Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Yuhua Tong