Patents Assigned to Rogers Corporation
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Publication number: 20190013128Abstract: In an embodiment, a magneto-dielectric material comprises a polymer matrix; a plurality of hexaferrite microfibers; wherein the magneto-dielectric material has a permeability of 2.5 to 7, or 2.5 to 5 in an x-direction parallel to a broad surface of the magneto-dielectric material and a magnetic loss tangent of less than or equal to 0.03; as determined at 1 GHz, or 1 to 2 GHz.Type: ApplicationFiled: January 18, 2017Publication date: January 10, 2019Applicant: Rogers CorporationInventors: Yajie CHEN, Karl Edward SPRENTALL, Murali SETHUMADHAVAN
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Publication number: 20180309202Abstract: A dielectric resonator antenna (DRA), includes: an electrically conductive ground structure; a plurality of volumes of dielectric materials disposed on the ground structure comprising N volumes, N being an integer equal to or greater than 3, disposed to form successive and sequential layered volumes V(i), i being an integer from 1 to N, wherein volume V(1) forms an innermost first volume, wherein a successive volume V(i+1) forms a layered shell disposed over and at least partially embedding volume V(i), wherein volume V(N) at least partially embeds all volumes V(1) to V(N?1); wherein a portion of the dielectric material of volume V(N) bifurcates at least a portion of volumes V(1) to V(N?1); and a signal feed electromagnetically coupled to one or more of the plurality of volumes of dielectric materials.Type: ApplicationFiled: October 27, 2016Publication date: October 25, 2018Applicant: Rogers CorporationInventors: Kristi PANCE, Karl E Sprentall, Shawn P. Williams
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Publication number: 20170199095Abstract: A pressure sensor includes a first plate (102), a second plate (104) and a foam (106) disposed between the first and second plate. The foam is a polyurethane foam having an average cell size of about 50 to 250 urn and a density of between 5 to 30 lbs/ft3.Type: ApplicationFiled: July 13, 2015Publication date: July 13, 2017Applicant: Rogers CorporationInventors: Aniruddha SHERE, Karl E. SPRENTALL
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Publication number: 20170055339Abstract: A thermally conductive composite includes a polymer; and boron nitride, wherein the boron nitride is in a form of a nanofiber, a nanotube, a nanoplate, or a combination thereof. Alternatively, a thermally conductive composite includes a boron nitride comprising pores; and a polymer disposed in a pore of the boron nitride.Type: ApplicationFiled: April 24, 2015Publication date: February 23, 2017Applicant: Rogers CorporationInventors: Li ZHANG, Murali SETHUMADHAVAN
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Patent number: 9056382Abstract: A polyurethane layer for forming a polishing pad for a semiconductor wafer is described, wherein the polyurethane layer comprises: a foamed polyurethane, wherein the polyurethane foam has a density of about 640 to about 960 kg/m3, and a plurality of cells having an average diameter of about 20 to about 200 micrometers; and particles of a hydrophobic polymer having a critical surface energy of less than 35 mN/m and having a median particle size of 3 to 100 micrometers. Polishing pads as well as methods for polishing are also described.Type: GrantFiled: May 27, 2010Date of Patent: June 16, 2015Assignee: Rogers CorporationInventors: Brian Litke, Michele K. Koss
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Patent number: 8809690Abstract: A bond ply, comprising a first outer layer comprising a thermosetting composition and a filler composition; a second outer layer comprising a thermosetting composition and a filler composition that is of the same type as that of the first outer layer; and an intermediate layer disposed between the first and the second outer layers, and comprising a thermosetting composition and a filler composition that is of the same type as the first and second outer layers, wherein the thermosetting composition of the intermediate layer has a degree of cure that is greater than a degree of cure for each of the thermosetting compositions of the first and the second outer layers.Type: GrantFiled: March 4, 2011Date of Patent: August 19, 2014Assignee: Rogers CorporationInventors: Dirk M. Baars, Dale J. Doyle, Sankar J. Paul, Diana J. Williams, Carlos L. Barton
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Patent number: 8754676Abstract: A high voltage waveform is generated that is similar to a low voltage input waveform. The high voltage waveform is a series of pulses that are applied directly to the device. An error signal controls the frequency, magnitude, and duration of the pulses. A feedback signal derived from the high voltage waveform is compared with the input waveform to produce the error signal.Type: GrantFiled: March 15, 2013Date of Patent: June 17, 2014Assignee: Rogers CorporationInventor: Karl Edward Sprentall
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Patent number: 8632874Abstract: A circuit subassembly, comprising a dielectric layer formed from a dielectric composition comprising, based on the total volume of the composition: about 15 to about 65 volume percent of a dielectric filler; and about 35 to about 85 volume percent of a thermosetting composition comprising: a poly(arylene ether), and a carboxy-functionalized polybutadiene or polyisoprene polymer.Type: GrantFiled: August 23, 2010Date of Patent: January 21, 2014Assignee: Rogers CorporationInventors: Sankar Paul, Scott D. Kennedy, Dirk M. Baars
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Patent number: 8613881Abstract: A polymer foam layer is disclosed, comprising a polymer foam and a plurality of electrically conductive particles dispersed within the polymer foam, polymer foam layer having an unabraded first surface and an opposite, second surface, wherein the electrically conductive particles essentially continuously span the polymer foam layer, and a portion of the electrically conductive particles are exposed at the first surface of the layer and another portion of the electrically conductive particles are exposed at the second surface. The foams are useful as gaskets for electromagnetic shielding, grounding pads, battery contact conductive spring elements, and the like.Type: GrantFiled: December 28, 2010Date of Patent: December 24, 2013Assignee: Rogers CorporationInventor: Sharon Y. Soong
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Patent number: 8578599Abstract: A method of making a supported foam circuit laminate comprises fitting a dielectric foam substrate having a shape defined by edges to a support frame having a thickness, an inner rim and an outer rim, wherein the edges of the dielectric foam substrate are flush with the inner rim of the support frame, and the dielectric foam substrate has a thickness that is greater than the thickness of the support frame; disposing an electrically conductive layer onto a side of the dielectric foam substrate and the support frame, wherein the edges of the electrically conductive layer overlap the inner rim of the support frame; and co-laminating the electrically conductive layer to the dielectric foam substrate and the overlapped support frame under heat and pressure to provide a supported foam circuit laminate.Type: GrantFiled: March 22, 2011Date of Patent: November 12, 2013Assignee: Rogers CorporationInventor: Michael S. Kuszaj
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Patent number: 8536906Abstract: A high voltage waveform is generated that is similar to a low voltage input waveform. The high voltage waveform is a series of pulses that are applied directly to the device. An error signal controls the frequency, magnitude, and duration of the pulses. A feedback signal derived from the high voltage waveform is compared with the input waveform to produce the error signal.Type: GrantFiled: June 10, 2011Date of Patent: September 17, 2013Assignee: Rogers CorporationInventors: Karl Edward Sprentall, Douglas James Anderson
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Publication number: 20130202928Abstract: A multilayer busbar for connecting a plurality of battery cells includes a cell connection layer including a plurality of conductor plates arranged to serially connect the plurality of battery cells. The busbar also includes a flexible circuit layer including a substrate having a plurality of measurement lines formed on it where the measurement lines are arranged to connect to a positive and a negative connection location on at least two of the plurality of battery cells.Type: ApplicationFiled: August 8, 2012Publication date: August 8, 2013Applicant: Rogers CorporationInventors: Marc Beulque, Stefan Desmet
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Patent number: 8371734Abstract: A tab is cut into a sheet of transparent material. The tab has a free end and a fixed end. A source of light is attached to the tab and the tab and the sheet are displaced along the z-axis of the sheet to direct light from the source into an edge of the sheet. The tab can include conductive traces for electrical connection to the light source or other electrical devices on the sheet. A variable display device adjacent the sheet is viewed through the sheet and the sheet with attached light source provides front lighting for the variable display device.Type: GrantFiled: September 17, 2010Date of Patent: February 12, 2013Assignee: Rogers CorporationInventor: Mahyar Vahabzadeh
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Publication number: 20120312519Abstract: A partially composite plate includes an area of metal matrix composite and a margin of metal, of the same metal as used to infiltrate the composite, along at least one edge of the composite. In a preferred embodiment of the invention, the margin surrounds the composite, the metal is aluminum, and the metal matrix composite is AlSiC.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: Rogers CorporationInventor: Birol Sonuparlak
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Publication number: 20120313682Abstract: A high voltage waveform is generated that is similar to a low voltage input waveform. The high voltage waveform is a series of pulses that are applied directly to the device. An error signal controls the frequency, magnitude, and duration of the pulses. A feedback signal derived from the high voltage waveform is compared with the input waveform to produce the error signal.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: Rogers CorporationInventors: Karl Edward Sprentall, Douglas James Anderson
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Publication number: 20120229108Abstract: A signal for controlling output voltage from the driver is modulated by the input signal to the driver, whereby the output voltage tracks the input signal, matching power to demand. The output storage capacitor can be reduced in size because the amount of energy that needs to be stored is reduced. In addition, feedback transistors are paired on the same substrate and cause opposite changes in response to changes in temperature, thereby automatically compensating for changes in temperature without the use of additional components.Type: ApplicationFiled: March 9, 2011Publication date: September 13, 2012Applicant: Rogers CorporationInventors: Karl Edward Sprentall, Douglas James Anderson
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Publication number: 20120070628Abstract: Small geometry images are printed by coating a surface with a first resin and printing the image from ink containing a second resin on the first resin. The first resin and the second resin are characterized by being solvated by the same solvent. The solvent by which both resins are solvated need not be the solvent used in the inks for either layer. The solvent need not be the same for the inks in both layers. It is believed that solvent from a freshly printed second layer is at least slightly absorbed by the first layer, thereby reducing spreading.Type: ApplicationFiled: September 17, 2010Publication date: March 22, 2012Applicant: Rogers CorporationInventors: Wayne A. Wilson, David G. Pires
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Publication number: 20120069596Abstract: A tab is cut into a sheet of transparent material. The tab has a free end and a fixed end. A source of light is attached to the tab and the tab and the sheet are displaced along the z-axis of the sheet to direct light from the source into an edge of the sheet. The tab can include conductive traces for electrical connection to the light source or other electrical devices on the sheet. A variable display device adjacent the sheet is viewed through the sheet and the sheet with attached light source provides front lighting for the variable display device.Type: ApplicationFiled: September 17, 2010Publication date: March 22, 2012Applicant: Rogers CorporationInventor: Mahyar Vahabzadeh
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Publication number: 20110031003Abstract: A circuit subassembly, comprising: a conductive layer, a dielectric layer formed from a thermosetting composition, wherein the thermosetting composition comprises, based on the total weight of the thermosetting composition a polybutadiene or polyisoprene resin, about 30 to about 70 percent by weight of a magnesium hydroxide having less than about 1000 ppm of ionic contaminants, and about 5 to about 15 percent by weight of a nitrogen-containing compound, wherein the nitrogen-containing compound comprises at least about 15 weight percent of nitrogen; and an adhesive layer disposed between and in intimate contact with the conductive layer and the dielectric layer, wherein the adhesive comprises a poly(arylene ether), wherein the circuit subassembly has a UL-94 rating of at least V-1.Type: ApplicationFiled: February 13, 2009Publication date: February 10, 2011Applicant: Rogers CorporationInventors: Sankar Paul, Dirk M. Baars
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Patent number: 7876399Abstract: A light shutter includes a first electrode, a second electrode, and a third electrode, wherein the first and second electrodes are capacitively coupled to each other by the third electrode. The first electrode and the second electrode can be segmented and the segments separately addressed. In a display having a light shutter and an EL panel stacked on the same side of a substrate, there is a common front electrode and separate rear electrodes for operating the light shutter and the EL panel. The common electrode is electrically floating and the rear electrodes are capacitively coupled to each other by the common front electrode. The rear electrodes can be segmented and the segments separately addressed.Type: GrantFiled: August 19, 2008Date of Patent: January 25, 2011Assignee: Rogers CorporationInventors: Mark A. Seelhammer, David G. Pires, Robert Allen Kimball