Patents by Inventor Abhijit Gurav
Abhijit Gurav 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: 11935698Abstract: This invention relates to a multilayer ceramic capacitor produced by alternatively stacking the ceramic dielectric layers and internal electrodes mainly comprise base metals. The present dielectric ceramic composition having a main component with a perovskite structure ABO3 formula of: (KxNayLizA1-x-y-z)m(NbuTav)O3 wherein: A, B, x, y, z, u, v, w, m, u, v and w are defined further. The dielectric ceramic composition further contains: a first accessory ingredient composes at least one selected from the rare-earth compounds; a second accessory ingredient composes at least one selected from transition metal compounds; and a third accessory ingredient.Type: GrantFiled: January 27, 2022Date of Patent: March 19, 2024Assignee: KEMET Electronics CorporationInventors: Hanzheng Guo, Abhijit Gurav
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Patent number: 11802087Abstract: The present invention discloses a dielectric ceramic formula enabling one to obtain a multilayer ceramic capacitor by alternatively stacking the ceramic dielectric layers and base metal internal electrodes. The dielectric ceramic composition comprises a primary ingredient: [(Na1-xKx)sA1-s]m[(Nb1-yTay)uB1vB2w)]O3 wherein: A, B1, B2, x, y, s, u, v, w and m are defined.Type: GrantFiled: January 27, 2022Date of Patent: October 31, 2023Assignee: KEMET Electronics CorporationInventors: Hanzheng Guo, Abhijit Gurav
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Publication number: 20230187134Abstract: Provided is an improved multilayered ceramic capacitor and an electronic device comprising the multilayered ceramic capacitor. The multilayer ceramic capacitor comprises first conductive plates electrically connected to first external terminations and second conductive plates electrically connected to second external terminations. The first conductive plates and second conductive plates form a capacitive couple. A ceramic portion is between the first conductive plates and said second conductive plates wherein the ceramic portion comprises paraelectric ceramic dielectric. The multilayer ceramic capacitor has a rated DC voltage and a rated AC VPP wherein the rated AC VPP is higher than the rated DC voltage.Type: ApplicationFiled: February 8, 2023Publication date: June 15, 2023Inventors: John Bultitude, Nathan A. Reed, Allen Templeton, James R. Magee, James Davis, Abhijit Gurav, Hunter Hayes
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Patent number: 11646156Abstract: A dielectric ceramic composition comprising a main component comprising an oxide represented by: UaXbYcZd((Ca1-x-ySrxMy)m(Zr1-u-vTiuHfv)O3)1-a-b-c-d wherein the elements defined by U, X, Y, Z and M and subscripts a, b, c, d, x, y, m, u and v are defined.Type: GrantFiled: September 7, 2021Date of Patent: May 9, 2023Assignee: KEMET Electronics CorporationInventors: Hanzheng Guo, Abhijit Gurav
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Patent number: 11621126Abstract: Provided is an improved multilayered ceramic capacitor and an electronic device comprising the multilayered ceramic capacitor. The multilayer ceramic capacitor comprises first conductive plates electrically connected to first external terminations and second conductive plates electrically connected to second external terminations. The first conductive plates and second conductive plates form a capacitive couple. A ceramic portion is between the first conductive plates and said second conductive plates wherein the ceramic portion comprises paraelectric ceramic dielectric. The multilayer ceramic capacitor has a rated DC voltage and a rated AC VPP wherein the rated AC VPP is higher than the rated DC voltage.Type: GrantFiled: September 7, 2021Date of Patent: April 4, 2023Assignee: KEMET Electronics CorporationInventors: John Bultitude, Nathan A. Reed, Allen Templeton, James R. Magee, James Davis, Abhijit Gurav, Hunter Hayes, Hanzheng Guo
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Publication number: 20220238277Abstract: This invention relates to a multilayer ceramic capacitor produced by alternatively stacking the ceramic dielectric layers and internal electrodes mainly comprise base metals. The present dielectric ceramic composition having a main component with a perovskite structure ABO3 formula of: (KxNayLizA1-x-y-z)m(NbuTavBw)O3 wherein: A is at least one selected from the alkaline earth element group of Ca, Sr, and Ba; B is at least one selected from the group of Ti, Zr, Hf and Sn; and wherein: x, y, z, u, v, and w are molar fractions of respective elements, and m is the molar ratio of A-site and B-site elements. They are in the following respective range: 0.95?m?1.05; 0.05?x?0.90; 0.05?y?0.90; 0.00?z?0.12 0<u<1; 0.0?w?0.Type: ApplicationFiled: January 27, 2022Publication date: July 28, 2022Inventors: Hanzheng Guo, Abhijit Gurav
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Publication number: 20220234958Abstract: The present invention discloses a dielectric ceramic formula enabling one to obtain a multilayer ceramic capacitor by alternatively stacking the ceramic dielectric layers and base metal internal electrodes. The dielectric ceramic composition comprises a primary ingredient: [(Na1-xKx)sA1-s]m[(Nb1-yTay)uB1vB2w)]O3 wherein: A is at least one selected from the alkaline-earth element group of Mg, Ca, Sr, and Ba; B1 is at least one selected from the group of Ti, Zr, Hf and Sn; B2 is at least one selected from transition metal elements; and wherein: x, y, s, u, v, and w are molar fractions of respective elements, and m is the molar ratio of [(Na1-xKx)sA1-s] and [(Nb1-yTay)uB1vB2w)]. They are in the following respective range: 0.93?m?1.07; 0.7?s?1.0; 0.00?x?0.05; 0.00?y?0.65; 0.7?u?1.0; 0.0?v?0.3; 0.001?w?0.Type: ApplicationFiled: January 27, 2022Publication date: July 28, 2022Inventors: Hanzheng Guo, Abhijit Gurav
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Publication number: 20220076886Abstract: a dielectric ceramic composition comprising a main component comprising an oxide represented by: UaXbYcZd((Ca1-x-ySrxMy)m(Zr1-u-vTiuHfv)O3)1-a-b-c-d wherein the elements defined by U, X, Y, Z and M and subscripts a, b, c, d, x, y, m, u and v are defined.Type: ApplicationFiled: September 7, 2021Publication date: March 10, 2022Inventors: Hanzheng Guo, Abhijit Gurav
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Publication number: 20220076892Abstract: Provided is an improved multilayered ceramic capacitor and an electronic device comprising the multilayered ceramic capacitor. The multilayer ceramic capacitor comprises first conductive plates electrically connected to first external terminations and second conductive plates electrically connected to second external terminations. The first conductive plates and second conductive plates form a capacitive couple. A ceramic portion is between the first conductive plates and said second conductive plates wherein the ceramic portion comprises paraelectric ceramic dielectric. The multilayer ceramic capacitor has a rated DC voltage and a rated AC VPP wherein the rated AC VPP is higher than the rated DC voltage.Type: ApplicationFiled: September 7, 2021Publication date: March 10, 2022Inventors: John Bultitude, Nathan A. Reed, Allen Templeton, James R. Magee, James Davis, Abhijit Gurav, Hunter Hayes, Hanzheng Guo
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Patent number: 10840023Abstract: An improved multilayered ceramic capacitor is provided wherein the capacitor has improved heat dissipation properties. The capacitor comprises first internal electrodes and second internal electrodes wherein the first internal electrodes are parallel with, and of opposite polarity, to the second internal electrodes. Dielectric layers are between the first internal electrodes and second internal electrodes and a thermal dissipation channel is in at least one dielectric layer. A thermal transfer medium is in the thermal dissipation channel.Type: GrantFiled: October 30, 2018Date of Patent: November 17, 2020Assignee: KEMET Electronics CorporationInventors: John Bultitude, Philip M. Lessner, Abhijit Gurav
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Publication number: 20190066927Abstract: An improved multilayered ceramic capacitor is provided wherein the capacitor has improved heat dissipation properties. The capacitor comprises first internal electrodes and second internal electrodes wherein the first internal electrodes are parallel with, and of opposite polarity, to the second internal electrodes. Dielectric layers are between the first internal electrodes and second internal electrodes and a thermal dissipation channel is in at least one dielectric layer. A thermal transfer medium is in the thermal dissipation channel.Type: ApplicationFiled: October 30, 2018Publication date: February 28, 2019Inventors: John Bultitude, Philip M. Lessner, Abhijit Gurav
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Patent number: 10147544Abstract: An improved multilayered ceramic capacitor is provided wherein the capacitor has improved heat dissipation properties. The capacitor comprises first internal electrodes and second internal electrodes wherein the first internal electrodes are parallel with, and of opposite polarity, to the second internal electrodes. Dielectric layers are between the first internal electrodes and second internal electrodes and a thermal dissipation channel is in at least one dielectric layer. A thermal transfer medium is in the thermal dissipation channel.Type: GrantFiled: May 22, 2017Date of Patent: December 4, 2018Assignee: KEMET Electronics CorporationInventors: John Bultitude, Philip M. Lessner, Abhijit Gurav
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Publication number: 20180337002Abstract: An improved multilayered ceramic capacitor is provided wherein the capacitor has improved heat dissipation properties. The capacitor comprises first internal electrodes and second internal electrodes wherein the first internal electrodes are parallel with, and of opposite polarity, to the second internal electrodes. Dielectric layers are between the first internal electrodes and second internal electrodes and a thermal dissipation channel is in at least one dielectric layer. A thermal transfer medium is in the thermal dissipation channel.Type: ApplicationFiled: May 22, 2017Publication date: November 22, 2018Inventors: John Bultitude, Philip M. Lessner, Abhijit Gurav
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Publication number: 20180254147Abstract: An multilayered ceramic capacitor is provided with mitigated microphonic noise propagation. The multilayered ceramic capacitor comprising a body comprising at least one face wherein the face has a body length. Parallel internal electrodes of alternating polarity are in the body wherein each internal electrode has a tab integral thereto wherein adjacent tabs are not in registration and alternate tabs are in registration. A dielectric is between adjacent internal electrodes. External terminations wherein a first external termination are in electrical contact with first tabs in registration and a second external termination is in electrical contact with second tabs in registration wherein the first external termination and second external termination are on the face and separated by a termination separation. A ratio of the termination separation to the body length is no more than 0.6 and the body comprises an extended portion beyond the external terminations.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Inventors: Randal J. Vaughan, Gregory L. Crosby, Abhijit Gurav
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Patent number: 10002713Abstract: An electronic component with a self-damping MLCC is provided. The electronic component comprising a pulse signal generator and a substrate comprising first traces and second traces. An MLCC is provided comprising a first capacitive couple between two first external terminations and a second capacitive couple between two second external terminations wherein each first external termination is in electrical contact with a different first trace and each second external termination is in electrical contact with a different second trace. The pulse signal generator provides a first pulse to the first traces and a second pulse to the second traces wherein the first pulse and second pulse are not in phase.Type: GrantFiled: January 22, 2018Date of Patent: June 19, 2018Assignee: KEMET Electronics CorporationInventors: Randal J. Vaughan, Abhijit Gurav, Gregory L. Crosby, Buli Xu
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Publication number: 20180137981Abstract: An multilayered ceramic capacitor is provided with mitigated microphonic noise propagation. The multilayered ceramic capacitor comprising a body comprising at least one face wherein the face has a body length. Parallel internal electrodes of alternating polarity are in the body wherein each internal electrode has a tab integral thereto wherein adjacent tabs are not in registration and alternate tabs are in registration. A dielectric is between adjacent internal electrodes. External terminations wherein a first external termination are in electrical contact with first tabs in registration and a second external termination is in electrical contact with second tabs in registration wherein the first external termination and second external termination are on the face and separated by a termination separation. A ratio of the termination separation to the body length is no more than 0.6 and the body comprises an extended portion beyond the external terminations.Type: ApplicationFiled: November 8, 2017Publication date: May 17, 2018Inventors: Randal J. Vaughan, Gregory L. Crosby, Abhijit Gurav
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Patent number: 9779874Abstract: An method of forming a metal foil coated ceramic and a metal foil capacitor is provided in a method of making a metal foil coated ceramic comprising providing a metal foil; applying a ceramic precursor to the metal foil wherein the ceramic precursor comprises at least one susceptor and a high dielectric constant oxide and an organic binder, and sintering the ceramic precursor with a high intensity, high pulse frequency light energy to form the metal foil ceramic.Type: GrantFiled: July 5, 2012Date of Patent: October 3, 2017Assignee: KEMET Electronics CorporationInventors: John E. McConnell, John Bultitude, Abhijit Gurav
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Patent number: 9357634Abstract: An improved discrete electronic device and method of making the improved discrete electronic device is described. The discrete electronic device has an electronic passive component with a termination and a lead frame. A compensating compliant component is between the termination and the lead frame. The compensating compliant component has a composite core and a first conductor on the composite core. The first conductor is in electrical contact with the termination. A second conductor is also on the composite core wherein the second conductor is in electrical contact with the lead frame.Type: GrantFiled: April 25, 2013Date of Patent: May 31, 2016Assignee: Kemet Electronics CorporationInventors: John E. McConnell, Alan P. Webster, John Bultitude, Abhijit Gurav
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Patent number: 9025311Abstract: An improved high capacitance module for multi-layer ceramic capacitors is described. The module contains a flexible substrate comprising at least one first conductive trace and at least one second conductive trace. A first termination trace is in electrical connection with each first trace and a second termination trace is in electrical connection with each second trace. Each capacitor comprises interleaved conductors wherein alternate conductors are terminated to a first external termination and adjacent conductors are terminated to a second external termination. Each capacitor is mounted on the substrate with the first termination in electrical contact with the first trace and the second termination in electrical contact with the second trace. A housing with the substrate is received in the housing. A first lead tab is in electrical contact with the first termination wherein the first lead tab extends from the housing.Type: GrantFiled: April 23, 2013Date of Patent: May 5, 2015Assignee: Kemet Electronics CorporationInventors: John Bultitude, John E. McConnell, Abhijit Gurav
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Publication number: 20140139971Abstract: An method of forming a metal foil coated ceramic and a metal foil capacitor is provided in a method of making a metal foil coated ceramic comprising providing a metal foil; applying a ceramic precursor to the metal foil wherein the ceramic precursor comprises at least one susceptor and a high dielectric constant oxide and an organic binder, and sintering the ceramic precursor with a high intensity, high pulse frequency light energy to form the metal foil ceramic.Type: ApplicationFiled: January 28, 2014Publication date: May 22, 2014Applicant: Kemet Electronics CorporationInventors: John E. McConnell, John Bultitude, Abhijit Gurav