Patents by Inventor David Gruszczynski
David Gruszczynski 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: 9869778Abstract: Described is a scintillator screen including a plurality of filaments. Each of the plurality of filaments includes scintillating particles dispersed within a thermoplastic polymer. The thermoplastic polymer includes an elastic additive. The scintillating particles are from about 10 volume percent to about 60 volume percent of each of the plurality of filaments. Each of the plurality of filaments has a refractive index of greater than or equal to 1.5. The plurality of filaments are substantially parallel to each other and are at a volume packing of from about 60 percent to about 90 percent.Type: GrantFiled: November 8, 2013Date of Patent: January 16, 2018Inventors: Seshadri Jagannathan, Charles M. Rankin, David Gruszczynski, Jean-Marc Inglese, Kevin L. Bishop, Richard A. Lombardo
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Patent number: 9739896Abstract: Described is a scintillator screen that includes a supporting layer having a phosphor dispersed in a polymeric binder disposed on the supporting layer and a barrier layer disposed on the polymeric binder. The barrier layer includes a non-moisture absorbing polymer selected from the group consisting of polyethylene terephthalate, cellulose diacetate, ethylene vinyl acetate and polyvinyl butyraldehyde. The barrier layer has a thickness of less than 1 micron. An antistatic layer is disposed on the barrier layer. The antistatic layer includes poly(3,4-ethylenedixythiophene)-poly(styrene sulfonate) (PEDOT/PSS) dispersed in a polymer selected from the group consisting of a polyester and a polyurethane. The antistatic layer has a transparency of greater than 95 percent at a wavelength of from about 400 nm to 600 nm.Type: GrantFiled: November 17, 2016Date of Patent: August 22, 2017Assignee: Carestream Health, Inc.Inventors: Seshadri Jagannathan, Timothy J. Tredwell, Charles M. Rankin, David Gruszczynski, Daniel M. Leusch
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Publication number: 20170068002Abstract: Described is a scintillator screen that includes a supporting layer having a phosphor dispersed in a polymeric binder disposed on the supporting layer and a barrier layer disposed on the polymeric binder. The barrier layer includes a non-moisture absorbing polymer selected from the group consisting of polyethylene terephthalate, cellulose diacetate, ethylene vinyl acetate and polyvinyl butyraldehyde. The barrier layer has a thickness of less than 1 micron. An antistatic layer is disposed on the barrier layer. The antistatic layer includes poly(3,4-ethylenedixythiophene)-poly(styrene sulfonate) (PEDOT/PSS) dispersed in a polymer selected from the group consisting of a polyester and a polyurethane. The antistatic layer has a transparency of greater than 95 percent at a wavelength of from about 400 nm to 600 nm.Type: ApplicationFiled: November 17, 2016Publication date: March 9, 2017Inventors: Seshadri Jagannathan, Timothy J. Tredwell, Charles M. Rankin, David Gruszczynski, Daniel M. Leusch
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Publication number: 20160131770Abstract: Described is a scintillator screen including a plurality of filaments. Each of the plurality of filaments includes scintillating particles dispersed within a thermoplastic polymer. The thermoplastic polymer includes an elastic additive. The scintillating particles are from about 10 volume percent to about 60 volume percent of each of the plurality of filaments. Each of the plurality of filaments has a refractive index of greater than or equal to 1.5. The plurality of filaments are substantially parallel to each other and are at a volume packing of from about 60 percent to about 90 percent.Type: ApplicationFiled: November 8, 2013Publication date: May 12, 2016Applicant: Carestream Health, Inc.Inventors: Seshadri Jagannathan, Charles M. Rankin, David Gruszczynski, Jean-Marc Inglese, Kevin L. Bishop, Richard A. Lombardo
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Patent number: 9211565Abstract: There is described a digital radiography panel that includes a scintillator screen, an adhesive layer and a flat panel detector. The scintillator screen includes a supporting layer; a phosphor dispersed in a polymeric binder disposed on the supporting layer and an antistatic layer disposed on the polymeric binder, wherein the antistatic layer has a transparency of greater than 95 percent at a wavelength of from about 400 nm to 600 nm and a surface resistivity of less than 105 ohms per square. The adhesive layer is disposed on the scintillator screen and includes a material selected from the group consisting of acrylic polymers and urethane polymers. The adhesive layer has a thickness of from about 5 ?m to about 15 ?m. The adhesive layer has a transmittance of greater than 95 percent at a wavelength of from about 400 nm to 600 nm. The flat panel detector is disposed on the adhesive layer.Type: GrantFiled: February 25, 2013Date of Patent: December 15, 2015Assignee: Carestream Health, Inc.Inventors: Seshadri Jagannathan, David Gruszczynski, Charles M. Rankin, Kevin L. Bishop, Brian P. Aylward
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Publication number: 20150301198Abstract: Described is a scintillator screen including a plurality of filaments. Each of the plurality of filaments includes scintillating particles dispersed within a thermoplastic polymer. The thermoplastic polymer includes an elastic additive. The scintillating particles are from about 10 volume percent to about 60 volume percent of each of the plurality of filaments. Each of the plurality of filaments has a refractive index of greater than or equal to 1.5. The plurality of filaments are substantially parallel to each other and are at a volume packing of from about 60 percent to about 90 percent.Type: ApplicationFiled: November 8, 2013Publication date: October 22, 2015Applicant: Carestream Health, Inc.Inventors: Seshadri Jagannathan, Charles M. Rankin, David Gruszczynski, Jean-Marc Inglese, Kevin L. Bishop, Richard A. Lombardo
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Patent number: 9079217Abstract: There is described a method of manufacturing a digital radiography panel. The method includes providing a scintillator screen and spray coating an acrylic adhesive composition on the scintillator screen. A flat panel detector and the scintillator screen with acrylic adhesive composition are compressed together at a force of about 5 psi to about 15 psi, at an atmospheric pressure of about 0.3 Torr to about 100.0 Torr for a time sufficient to affix the flat panel detector to the scintillator screen to form the digital radiography panel.Type: GrantFiled: February 25, 2013Date of Patent: July 14, 2015Assignee: Carestream Health, Inc.Inventors: Seshadri Jagannathan, Timothy J. Tredwell, Eric L. Dillenbeck, David Gruszczynski, Daniel M. Leusch, Charles M. Rankin, Bradley S. Jadrich, Brian P. Aylward, Kevin L. Bishop
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Patent number: 9069086Abstract: A patterned scintillator panel including an extruded scintillator layer comprising a thermoplastic polyolefin and a scintillator material, wherein the scintillator layer comprises a pattern. Also disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by melt extrusion, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer. Further disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by injection molding, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer.Type: GrantFiled: June 21, 2012Date of Patent: June 30, 2015Assignee: Carestream Health, Inc.Inventors: Seshadri Jagannathan, Charles M. Rankin, Jean-Marc Inglese, David Gruszczynski
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Publication number: 20140186594Abstract: A patterned scintillator panel including an extruded scintillator layer comprising a thermoplastic polyolefin and a scintillator material, wherein the scintillator layer comprises a pattern. Also disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by melt extrusion, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer. Further disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by injection molding, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer.Type: ApplicationFiled: June 21, 2012Publication date: July 3, 2014Inventors: Seshadri Jagannathan, Charles M. Rankin, Jean-Marc Inglese, David Gruszczynski
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Publication number: 20130220514Abstract: There is described a method of manufacturing a digital radiography panel. The method includes providing a scintillator screen and spray coating an acrylic adhesive composition on the scintillator screen. A flat panel detector and the scintillator screen with acrylic adhesive composition are compressed together at a force of about 5 psi to about 15 psi, at an atmospheric pressure of about 0.3 Torr to about 100.0 Torr for a time sufficient to affix the flat panel detector to the scintillator screen to form the digital radiography panel.Type: ApplicationFiled: February 25, 2013Publication date: August 29, 2013Inventors: Seshadri Jagannathan, Timothy J. Tredwell, Eric L. Dillenbeck, David Gruszczynski, Daniel M. Leusch, Charles M. Rankin, Bradley S. Jadrich, Brian P. Aylward, Kevin L. Bishop
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Publication number: 20130221225Abstract: Described is a scintillator screen that includes a supporting layer having a phosphor dispersed in a polymeric binder disposed on the supporting layer and a barrier layer disposed on the polymeric binder. The barrier layer includes a non-moisture absorbing polymer selected from the group consisting of polyethylene terephthalate, cellulose diacetate, ethylene vinyl acetate and polyvinyl butyraldehyde. The barrier layer has a thickness of less than 1 micron. An antistatic layer is disposed on the barrier layer. The antistatic layer includes poly(3,4-ethylenedixythiophene)-poly(styrene sulfonate) (PEDOT/PSS) dispersed in a polymer selected from the group consisting of a polyester and a polyurethane. The antistatic layer has a transparency of greater than 95 percent at a wavelength of from about 400 nm to 600 nm.Type: ApplicationFiled: February 25, 2013Publication date: August 29, 2013Inventors: Seshadri Jagannathan, Timothy J. Tredwell, Charles M. Rankin, David Gruszczynski, Daniel M. Leusch
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Publication number: 20130221229Abstract: There is described a digital radiography panel that includes a scintillator screen, an adhesive layer and a flat panel detector. The scintillator screen includes a supporting layer; a phosphor dispersed in a polymeric binder disposed on the supporting layer and an antistatic layer disposed on the polymeric binder, wherein the antistatic layer has a transparency of greater than 95 percent at a wavelength of from about 400 nm to 600 nm and a surface resistivity of less than 105 ohms per square. The adhesive layer is disposed on the scintillator screen and includes a material selected from the group consisting of acrylic polymers and urethane polymers. The adhesive layer has a thickness of from about 5 ?m to about 15 ?m. The adhesive layer has a transmittance of greater than 95 percent at a wavelength of from about 400 nm to 600 nm. The flat panel detector is disposed on the adhesive layer.Type: ApplicationFiled: February 25, 2013Publication date: August 29, 2013Inventors: Seshadri Jagannathan, David Gruszczynski, Charles M. Rankin, Kevin L. Bishop, Brian P. Aylward