Patents by Inventor Kathleen Carmichael

Kathleen Carmichael 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).

  • Patent number: 7704658
    Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: April 27, 2010
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus R. Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
  • Publication number: 20090269687
    Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.
    Type: Application
    Filed: July 15, 2009
    Publication date: October 29, 2009
    Applicant: XEROX CORPORATION
    Inventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
  • Publication number: 20090239166
    Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.
    Type: Application
    Filed: June 22, 2006
    Publication date: September 24, 2009
    Applicant: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
  • Patent number: 7582399
    Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: September 1, 2009
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
  • Patent number: 7524597
    Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano-sized particles serving as fillers dispersed or contained in one or more layers of the imaging member that provide for increased mechanical strength and improved wear.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: April 28, 2009
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Chieh-Min Cheng, Kenny-tuan Dinh, Susan Vandusen, Cindy Chen, Huoy-Jen Yuh, Lanhui Zhang
  • Patent number: 7361440
    Abstract: The presently disclosed embodiments are directed to anticurl backing layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved anticurl backing layer including a low surface energy polymeric material to prevent curling and reduce friction, and a process for making and using the member.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: April 22, 2008
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Satish Parikh, Anthony M. Horgan, Kathleen Carmichael, Markus Silvestri, Edward Grabowski, Donald Goodman, Richard Post, Kenny-tuar Dinh
  • Publication number: 20070298340
    Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano-sized particles serving as fillers dispersed or contained in one or more layers of the imaging member that provide for increased mechanical strength and improved wear.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 27, 2007
    Applicant: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Chieh-Min Cheng, Kenny-tuan Dinh, Susan Vandusen, Cindy Chen, Huoy-Jen Yuh, Lanhui Zhang
  • Publication number: 20070298110
    Abstract: Method for producing nanoparticles that can be used in a variety of applications, including improving performance of electrostatographic apparatuses. More particularly, a method for producing nanoparticles through a precipitation process occurring in a matrix of two or more molecules in a multi-solvent system.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 27, 2007
    Applicant: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Anthony Horgan, Kathleen Carmichael
  • Publication number: 20070172749
    Abstract: A flexible imaging member which does not require the use of an anti-curl back coating is disclosed herein. The flexible imaging member has a layer comprising two charge transport molecules dispersed in a film-forming polymer binder. The first charge transport molecule is a biphenyl amine, terphenyl diamine, or bis(triarylamine) stilbene. The second charge transport molecule is a bis(triarylamine), tri-p-tolylamine, or triphenylamine. The weight ratio of second charge transport molecule to first charge transport molecule is from about 90:10 to about 67:33. Trifluoro acetic acid is also added to the layer containing the charge transport material.
    Type: Application
    Filed: October 28, 2005
    Publication date: July 26, 2007
    Inventors: Kathleen Carmichael, Kent Evans, Donald Sullivan, Satish Parikh, Kathy Lippman
  • Publication number: 20070148575
    Abstract: The presently disclosed embodiments are directed to overcoat layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved overcoat layer including a polymeric binder that lowers the surface energy involved and reduces friction.
    Type: Application
    Filed: December 27, 2005
    Publication date: June 28, 2007
    Applicant: XEROX CORPORATION
    Inventors: Satchidanand Mishra, Kathleen Carmichael, Anthony Horgan, Markus Silvestri, Satish Parikh, Edward Grabowski, Kenny-tuan Dinh, Richard Post, Donald Goodman
  • Publication number: 20070148573
    Abstract: The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved charge transport layer including a polymeric binder that lowers the surface energy involved and reduces friction.
    Type: Application
    Filed: December 27, 2005
    Publication date: June 28, 2007
    Applicant: XEROX CORPORATION
    Inventors: Satchidanand Mishra, Kathleen Carmichael, Satish Parikh, Anthony Horgan, Markus Silvestri, Edward Grabowski, Kenny-tuan Dinh, Richard Post, Donald Goodman
  • Publication number: 20070148572
    Abstract: An imaging member having an adhesive charge transport layer is disclosed herein. The charge transport layer comprises a low surface energy polymer having siloxane segments in its backbone and a charge transport compound; it may further comprise a film-forming polymer. The charge transport layer has low surface energy, reduced coefficient of surface contact friction, and improved surface lubricity.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Inventors: Robert Yu, Stephen Avery, Kathleen Carmichael, Jimmy Kelly
  • Publication number: 20070141489
    Abstract: An imaging member is disclosed which includes a charge generating layer and a charge transport layer. The charge transport layer includes a first charge transport layer adjacent the charge generating layer and at least a second charge transport layer adjacent the first charge transport layer. Each charge transport layer includes a film forming polymer binder and a charge transport material dispersed therein. The first charge transport material has a composition which is the same or different than the second charge transport material and of a lower concentration. It may be selected from an aryl amine, aryl diamine, or combinations thereof. The combination has the effect of reducing charge deficient spots.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Satchidanand Mishra, Kathleen Carmichael, Yuhua Tong, Anthony Horgan, Edward Grabowski, Richard Post, Susan VanDusen
  • Publication number: 20070141491
    Abstract: An imaging member comprising a barrier or under-layer intermediate a photogenerating layer and charge transport layer to reduce charge deficiency spots. The barrier under-layer comprises a film forming polymer binder selected from a conductive polymer binder, a non-conductive polymer binder, or mixtures thereof. Optionally, the barrier layer can include a small amount of a charge transport material.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Satchidanand Mishra, Kathleen Carmichael, Yuhua Tong, Anthony Horgan, Edward Grabowski, Richard Post, Robert Yu, Dennis Prosser, Edward Domm, Min-Hong Fu
  • Publication number: 20070099101
    Abstract: A flexible imaging member which does not require the use of an anti-curl back coating is disclosed herein. The flexible imaging member has a layer comprising two charge transport molecules dispersed in a film-forming polymer binder and an overcoat layer. The first charge transport molecule is a biphenyl amine, terphenyl diamine, or bis(triarylamine) stilbene. The second charge transport molecule is a bis(triarylamine), tri-p-tolylamine, or triphenylamine. The weight ratio of second charge transport molecule to first charge transport molecule is from about 90:10 to about 66:34. Trifluoro acetic acid is also added to the layer containing the charge transport material.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 3, 2007
    Inventors: Anthony Horgan, Robert Yu, Kathleen Carmichael
  • Publication number: 20070092813
    Abstract: An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.
    Type: Application
    Filed: November 16, 2006
    Publication date: April 26, 2007
    Inventors: Anthony Horgan, Robert Yu, Satchidanand Mishra, Richard Post, Edward Grabowski, Kathleen Carmichael, John Lambie, Houy Yuh, Timothy Fuller, John Yanus, Markus Silvestri, Yuhua Tong, Dale Renfer, Kenny-Tuan Dinh, Geoffrey Foley
  • Publication number: 20070059616
    Abstract: An imaging member includes a conductive substrate, a SiOx layer coated over the conductive substrate, a charge generating layer coated over the SiOx layer, and a charge transport layer
    Type: Application
    Filed: September 12, 2005
    Publication date: March 15, 2007
    Applicant: Xerox Corporation
    Inventors: Satchidanand Mishra, Anthony Horgan, Kent Evans, George Liebermann, Ah-Mee Hor, Min-Hong Fu, Richard Post, Kathleen Carmichael, Satish Parikh, Edward Grabowski, Donald Goodman, Gregory Kovacs
  • Publication number: 20070059622
    Abstract: 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 an improved electrophotographic imaging member having a protective overcoat layer comprising a low surface energy polymeric material to enhance the imaging member physical/mechanical function as well as render its service life extension and a process for making and using the member.
    Type: Application
    Filed: July 28, 2006
    Publication date: March 15, 2007
    Applicant: Xerox Corporation
    Inventors: Robert Yu, Stephen Avery, Kathleen Carmichael
  • Publication number: 20070037081
    Abstract: The presently disclosed embodiments are directed to anticurl backing layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved anticurl backing layer including a low surface energy polymeric material to prevent curling and reduce friction, and a process for making and using the member.
    Type: Application
    Filed: August 9, 2005
    Publication date: February 15, 2007
    Applicant: Xerox Corporation
    Inventors: Satchidanand Mishra, Satish Parikh, Anthony Horgan, Kathleen Carmichael, Markus Silvestri, Edward Grabowski, Donald Goodman, Richard Post, Kenny-tuan Dinh
  • Publication number: 20060292466
    Abstract: An imaging member includes a conductive substrate, a charge generating layer, a charge transport layer, and an intermediate layer between the charge generating layer and the charge transport layer, the intermediate layer including a hole transport material, such as three different hole transfer materials, dispersed in a film forming binder, such as two different binder materials.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 28, 2006
    Applicant: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Anthony Horgan, Kathleen Carmichael, Dennis Prosser, Richard Post, Edward Grabowski