Patents by Inventor John E. Roberts
John E. Roberts 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: 11937429Abstract: Some embodiments include an integrated structure having vertically-stacked conductive levels alternating with dielectric levels. A layer over the conductive levels includes silicon, nitrogen, and one or more of carbon, oxygen, boron and phosphorus. In some embodiments the vertically-stacked conductive levels are wordline levels within a NAND memory array. Some embodiments include an integrated structure having vertically-stacked conductive levels alternating with dielectric levels. Vertically-stacked NAND memory cells are along the conductive levels within a memory array region. A staircase region is proximate the memory array region. The staircase region has electrical contacts in one-to-one correspondence with the conductive levels. A layer is over the memory array region and over the staircase region. The layer includes silicon, nitrogen, and one or more of carbon, oxygen, boron and phosphorus.Type: GrantFiled: December 20, 2021Date of Patent: March 19, 2024Assignee: Micron Technology, Inc.Inventors: Justin B. Dorhout, Fei Wang, Chet E. Carter, Ian Laboriante, John D. Hopkins, Kunal Shrotri, Ryan Meyer, Vinayak Shamanna, Kunal R. Parekh, Martin C. Roberts, Matthew Park
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Patent number: 10092749Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed on a circuit board within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.Type: GrantFiled: September 14, 2017Date of Patent: October 9, 2018Assignee: Greatbatch Ltd.Inventors: Robert A. Stevenson, Robert Shawn Johnson, Warren S. Dabney, Thomas Marzano, Richard L. Brendel, Christopher Michael Williams, Holly Noelle Moschiano, Keith W. Seitz, John E. Roberts
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Publication number: 20180008822Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed on a circuit board within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.Type: ApplicationFiled: September 14, 2017Publication date: January 11, 2018Inventors: Robert A. Stevenson, Robert Shawn Johnson, Warren S. Dabney, Thomas Marzano, Richard L. Brendel, Christopher Michael Williams, Holly Noelle Moschiano, Keith W. Seitz, John E. Roberts
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Patent number: 9764129Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed on a circuit board within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.Type: GrantFiled: May 24, 2016Date of Patent: September 19, 2017Assignee: Greatbatch Ltd.Inventors: Robert A. Stevenson, Robert Shawn Johnson, Warren S. Dabney, Thomas Marzano, Richard L. Brendel, Christopher Michael Williams, Holly Noelle Moschiano, Keith W. Seitz, John E. Roberts
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Patent number: 9757558Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.Type: GrantFiled: April 16, 2015Date of Patent: September 12, 2017Assignee: Greatbatch Ltd.Inventors: Robert A. Stevenson, Robert Shawn Johnson, Warren S. Dabney, Thomas Marzano, Richard L. Brendel, Christopher Michael Williams, Holly Noelle Moschiano, Keith W. Seitz, John E. Roberts
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Publication number: 20160263373Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed on a circuit board within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.Type: ApplicationFiled: May 24, 2016Publication date: September 15, 2016Inventors: Robert A. Stevenson, Robert Shawn Johnson, Warren S. Dabney, Thomas Marzano, Richard L. Brendel, Christopher Michael Williams, Holly Noelle Moschiano, Keith W. Seitz, John E. Roberts
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Publication number: 20150217111Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.Type: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Inventors: Robert A. Stevenson, Robert Shawn Johnson, Warren S. Dabney, Thomas Marzano, Richard L. Brendel, Christopher Michael Williams, Holly Noelle Moschiano, Keith W. Seitz, John E. Roberts
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Patent number: 9064640Abstract: An EMI filtered terminal assembly including at least one conductive terminal pin, a feedthrough capacitor, and a counter-bore associated with a passageway through the capacitor is described. Preferably, the feedthrough capacitor having counter-drilled or counter-bored holes on its top side is first bonded to a hermetic insulator. The counter-drilled or counter-bore holes in the capacitor provide greater volume for the electro-mechanical attachment between the capacitor and the terminal pin or lead wire, permitting robotic dispensing of, for example, thermal-setting conductive adhesive.Type: GrantFiled: June 25, 2013Date of Patent: June 23, 2015Assignee: Greatbatch Ltd.Inventors: Richard L. Brendel, Jason Woods, Jose Luis Lorente-Adame, Robert A. Stevenson, John E. Roberts, Buehl E. Truex
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Patent number: 9014808Abstract: An RF filter for an active medical device (AMD), for handling RF power induced in an associated lead from an external RF field at a selected MRI frequency or range frequencies includes a capacitor having a capacitance of between 100 and 10,000 picofarads, and a temperature stable dielectric having a dielectric constant of 200 or less and a temperature coefficient of capacitance (TCC) within the range of plus 400 to minus 7112 parts per million per degree centigrade. The capacitor's dielectric loss tangent in ohms is less than five percent of the capacitor's equivalent series resistance (ESR) at the selected MRI RF frequency or range of frequencies.Type: GrantFiled: February 23, 2014Date of Patent: April 21, 2015Assignee: Greatbatch Ltd.Inventors: Robert A. Stevenson, Christine A. Frysz, Jason Woods, Richard L. Brendel, Robert S. Johnson, Dominick J. Frustaci, Warren S. Dabney, Keith W. Seitz, Thomas Marzano, John E. Roberts, William C. Thiebolt, Christopher M. Williams, Buehl E. Truex
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Patent number: 8855768Abstract: An RF filter for an active medical device (AMD), for handling RF power induced in an associated lead from an external RF field at a selected MRI frequency or range frequencies includes a capacitor having a capacitance of between 100 and 10,000 picofarads, and a temperature stable dielectric having a dielectric constant of 200 or less and a temperature coefficient of capacitance (TCC) within the range of plus 400 to minus 7112 parts per million per degree centigrade. The capacitor's dielectric loss tangent in ohms is less than five percent of the capacitor's equivalent series resistance (ESR) at the selected MRI RF frequency or range of frequencies.Type: GrantFiled: November 25, 2013Date of Patent: October 7, 2014Assignee: Greatbatch Ltd.Inventors: Robert Shawn Johnson, Dominick J. Frustaci, Warren S. Dabney, Robert A. Stevenson, Keith W. Seitz, Christine A. Frysz, Thomas Marzano, Richard L. Brendel, John E. Roberts, William Thiebolt, Christopher M. Williams, Jason Woods, Buehl E. Truex
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Publication number: 20140168850Abstract: An RF filter for an active medical device (AMD), for handling RF power induced in an associated lead from an external RF field at a selected MRI frequency or range frequencies includes a capacitor having a capacitance of between 100 and 10,000 picofarads, and a temperature stable dielectric having a dielectric constant of 200 or less and a temperature coefficient of capacitance (TCC) within the range of plus 400 to minus 7112 parts per million per degree centigrade. The capacitor's dielectric loss tangent in ohms is less than five percent of the capacitor's equivalent series resistance (ESR) at the selected MRI RF frequency or range of frequencies.Type: ApplicationFiled: February 23, 2014Publication date: June 19, 2014Applicant: Greatbatch Ltd.Inventors: Robert A. Stevenson, Christine A. Frysz, Jason Woods, Richard L. Brendel, Robert S. Johnson, Dominick J. Frustaci, Warren S. Dabney, Keith W. Seitz, Thomas Marzano, John E. Roberts, William C. Thiebolt, Christopher M. Williams, Buehl E. Truex
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Publication number: 20130286537Abstract: An EMI filtered terminal assembly including at least one conductive terminal pin, a feedthrough capacitor, and a counter-bore associated with a passageway through the capacitor is described. Preferably, the feedthrough capacitor having counter-drilled or counter-bored holes on its top side is first bonded to a hermetic insulator. The counter-drilled or counter-bore holes in the capacitor provide greater volume for the electro-mechanical attachment between the capacitor and the terminal pin or lead wire, permitting robotic dispensing of, for example, thermal-setting conductive adhesive.Type: ApplicationFiled: June 25, 2013Publication date: October 31, 2013Inventors: Richard L. Brendel, Jason Woods, Jose Luis Lorente-Adame, Robert A. Stevenson, John E. Roberts, Buehl E. Truex
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Publication number: 20120256704Abstract: An RF filter for an active medical device (AMD), for handling RF power induced in an associated lead from an external RF field at a selected MRI frequency or range frequencies includes a capacitor having a capacitance of between 100 and 10,000 picofarads, and a temperature stable dielectric having a dielectric constant of 200 or less and a temperature coefficient of capacitance (TCC) within the range of plus 400 to minus 7112 parts per million per degree centigrade. The capacitor's dielectric loss tangent in ohms is less than five percent of the capacitor's equivalent series resistance (ESR) at the selected MRI RF frequency or range of frequencies.Type: ApplicationFiled: February 29, 2012Publication date: October 11, 2012Applicant: GREATBATCH LTD.Inventors: Robert Shawn Johnson, Dominick J. Frustaci, Warren S. Dabney, Robert A. Stevenson, Keith W. Seitz, Christine A. Frysz, Thomas Marzano, Richard L. Brendel, John E. Roberts, William Thiebolt, Christopher M. Williams, Jason Woods, Buehl E. Truex
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Patent number: 6567259Abstract: A feedthrough filter capacitor assembly for use in active implantable medical devices and a related process for manufacturing a monolithic ceramic capacitor utilizing dielectric materials having a dielectric constant greater than 7000, and preferably in the range of 8500 to 22,000. In the manufacture of the monolithic ceramic capacitor, one or more Curie point shifters and/or other dopants are added to the dielectric material to optimize the dielectric constant at the human body temperature of 37° C. For manufacturing purposes, dopants may be added to the dielectric material to broaden the Curie point peak or point of maximum dielectric constant thereof. The effect is that when such capacitors and terminal assemblies are utilized in a high-voltage defibrillator circuit of an implantable medical device, the dielectric material is optimized so that during the delivery of high-voltage electrical energy, capacitance value of the capacitor drops substantially.Type: GrantFiled: September 20, 2002Date of Patent: May 20, 2003Assignee: Greatbatch-Sierra, Inc.Inventors: Robert A. Stevenson, Donald K. Haskell, John E. Roberts
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Publication number: 20030053284Abstract: A feedthrough filter capacitor assembly for use in active implantable medical devices and a related process for manufacturing a monolithic ceramic capacitor utilizing dielectric materials having a dielectric constant greater than 7000, and preferably in the range of 8500 to 22,000. In the manufacture of the monolithic ceramic capacitor, one or more Curie point shifters and/or other dopants are added to the dielectric material to optimize the dielectric constant at the human body temperature of 37° C. For manufacturing purposes, dopants may be added to the dielectric material to broaden the Curie point peak or point of maximum dielectric constant thereof. The effect is that when such capacitors and terminal assemblies are utilized in a high-voltage defibrillator circuit of an implantable medical device, the dielectric material is optimized so that during the delivery of high-voltage electrical energy, capacitance value of the capacitor drops substantially.Type: ApplicationFiled: September 20, 2002Publication date: March 20, 2003Inventors: Robert A. Stevenson, Donald K. Haskell, John E. Roberts
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Patent number: 5573094Abstract: A ball bearing/freewheel clutch is provided with an inner race member defining an inner race surface; an outer race member defining an outer race surface concentric with said inner race member; and a raceway between said inner and outer races. The inner and outer race members each have a series of short radially oriented sawtooth inclines on their respective inner and outer race surfaces at right angles to said raceway. A plurality of modified ball bearings are disposed in said raceway between said inner and outer race members, such that said modified ball bearings serve to prevent relative rotation of said inner and outer race members in one direction, and to transmit a torque between said inner and outer races. In the preferred embodiment of the invention, said modified ball bearings have flattened poles which engage said sawtooth inclines in one direction of rotation.Type: GrantFiled: March 7, 1995Date of Patent: November 12, 1996Assignee: GTE Government Systems CorporationInventor: John E. Roberts
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Patent number: 4932176Abstract: A telescopic mast system has a base tube, a plurality of axially movable coaxial inner tubes nestable successively within each other and within the base tube, and a winch supported at the lower end of the base tube with a pair of preferably wire ropes driven thereby for extending and retracting the inner tubes. The base and inner tubes have collars at their respective ends, the collars of adjacent tubes engaging each other to limit extension thereof and to provide additional structural support during application of bending loads on the mast system. The ropes are connected to pulleys mounted near or within tube collars so that the ropes and pulleys are totally enclosed within the mast system. As the winch is rotated in one direction, the ropes axially move the inner tubes from a nested or stowed position within the base tube to a fully vertically extended operational position.Type: GrantFiled: September 19, 1988Date of Patent: June 12, 1990Assignee: GTE Government Systems CorporationInventors: John E. Roberts, Jerome L. Hitchcock
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Patent number: 4912994Abstract: A linkage device connectable between adjacent ends of a tubular support member and payload member is adapted to rotate the payload member through approximately 180.degree. about the end of the support member between inoperative and operative positions by movement of an actuating rod longitudinally within the tubular member. The linkage device comprises first and second frames secured to adjacent ends of the members and four bars pivotally connected at opposite ends to corners of the frames, the first pair of bars extending within the frames and the second pair extending outside the frames. The actuating rod is connected to the first pair of bars and rotates them about their pivotal connection to the first frame when the rod is moved longitudinally within the tubular member. Both pairs of bars cause the payload member to rotate about the end of the support member through 180.degree. and into an operative position in longitudinal alignment with the support member.Type: GrantFiled: March 6, 1989Date of Patent: April 3, 1990Assignee: GTE Government Systems CorporationInventor: John E. Roberts
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Patent number: 4911373Abstract: A winch having a torodially-shaped drum with an axis of rotation and at least one cable wound on the drum having a cable length extending from the drum parallel to and substantially equally spaced from said axis at all times during rotation of the winch. The drum has negatively-curved and positively-curved surfaces joined at a common edge, the cable being wound on the negatively-curved surface and directed therefrom over the positively-curved surface in a direction parallel to the drum axis. This drum is used advantageously with the mast system described in application Ser. No. 246,112.Type: GrantFiled: April 24, 1989Date of Patent: March 27, 1990Assignee: GTE Government Systems CorporationInventor: John E. Roberts
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Patent number: 4738582Abstract: A tank carrier and manipulator primarily for handling cylindrical tanks of liquid such as liquified gas or chemicals and inverting them for use. Normally mounted on a wheeled vehicle for transport and liquid dispensing use, the tank is strapped to a support member while standing in a vertical position on the ground. The tank can then be tilted to a desired angle clearing structure on the vehicle and rotated approximately 180.degree. to present the top of the tank in a generally downward position for dispensing its contents in liquid form. The vehicle can contain auxiliary equipment such as a pressure vessel for heating the liquid and delivering it as a gas.Type: GrantFiled: December 11, 1986Date of Patent: April 19, 1988Assignee: E Manufacturing Company Inc.Inventor: John E. Roberts