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21.发明授权公开(公告)号：US11004583B2
公开(公告)日：2021-05-11
申请号：US16067181
申请日：2017-01-18
Applicant: ROGERS CORPORATION
Inventor： Yajie Chen , Karl Edward Sprentall , Murali Sethumadhavan
Abstract: 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.
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公开(公告)号：US20190291364A1
公开(公告)日：2019-09-26
申请号：US16357929
申请日：2019-03-19
Applicant: ROGERS CORPORATION
Inventor： Stephen O'Connor , Murali Sethumadhavan
Abstract: In an embodiment, a thermoplastic composite comprises a thermoplastic polymer; and a dielectric filler having a multimodal particle size distribution; wherein a peak of a first mode of the multimodal particle size distribution is at least seven times that of a peak of a second mode of the multimodal particle size distribution; and a flow modifier.
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公开(公告)号：US20180323514A1
公开(公告)日：2018-11-08
申请号：US15957043
申请日：2018-04-19
Applicant: Rogers Corporation
Inventor： Kristi Pance , Gianni Taraschi , Murali Sethumadhavan , Stephen O'Connor , Karl E. Sprentall , Shawn P. Williams
CPC classification number: H01Q21/065 , H01Q9/0485 , H01Q19/18 , H01Q21/0093 , H01Q21/061
Abstract: A connected dielectric resonator antenna array (connected-DRA array) operational at an operating frequency and associated wavelength, includes: a plurality of dielectric resonator antennas (DRAs), each of the plurality of DRAs having at least one volume of non-gaseous dielectric material; wherein each of the plurality of DRAs is physically connected to at least one other of the plurality of DRAs via a relatively thin connecting structure, each connecting structure being relatively thin as compared to an overall outside dimension of one of the plurality of DRAs, each connecting structure having a cross sectional overall height that is less than an overall height of a respective connected DRA and being formed from at least one of the at least one volume of non-gaseous dielectric material, each connecting structure and the associated volume of the at least one volume of non-gaseous dielectric material forming a single monolithic portion of the connected-DRA array.
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公开(公告)号：US10108033B2
公开(公告)日：2018-10-23
申请号：US15222395
申请日：2016-07-28
Applicant: Rogers Corporation
Inventor： Murali Sethumadhavan , Trevor Polidore
IPC: G02F1/1333 , B32B5/02 , B32B7/12
Abstract: A subassembly for a display device includes a display component having an outer display surface and an opposite inner surface; a compressible pressure pad including a plurality of nonwoven fibers having an average diameter of 100 micrometers or less, disposed on the inner surface of the display component; and an internal component disposed on a side of the compressible pressure pad on a side opposite the display component. Methods for reducing ripple effect and improving impact absorption in a display device are also described.
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公开(公告)号：US20180218836A1
公开(公告)日：2018-08-02
申请号：US15882397
申请日：2018-01-29
Applicant: Rogers Corporation
Inventor： Eui Kyoon Kim , Michael White , Murali Sethumadhavan , Karl Edward Sprentall
Abstract: In an embodiment, a method of forming a magneto-dielectric material comprises roll coating a ferromagnetic material onto a dielectric layer comprising a dielectric material by continuously moving the dielectric layer through a ferromagnetic coating zone to form a coated sheet; forming a plurality of sheets from the coated sheet; forming a layered stack of the plurality of sheets; laminating the layered stack to form the magneto-dielectric material having a plurality of alternating ferromagnetic layers and dielectric layers. In another embodiment, a method of forming a magneto-dielectric material comprises drum roll coating a ferromagnetic material and a dielectric material onto a drum roll to form the magneto-dielectric material having a plurality of alternating ferromagnetic layers and dielectric layers.
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Patent Agency Ranking
公开(公告)号：US20180182525A1
公开(公告)日：2018-06-28
申请号：US15850466
申请日：2017-12-21
Applicant: Rogers Corporation
Inventor： Karl E. Sprentall , Aniruddha J. Shere , Yajie Chen , Murali Sethumadhavan
Abstract: A magneto-dielectric material operable between a minimum frequency and a maximum frequency, having: a plurality of layers that alternate between a dielectric material and a ferromagnetic material, lowermost and uppermost layers of the plurality of layers each being a dielectric material; each layer of the plurality of ferromagnetic material layers having a thickness equal to or greater than 1/15th a skin depth of the respective ferromagnetic material at the maximum frequency, and equal to or less than ⅕th the skin depth of the respective ferromagnetic material at the maximum frequency; each layer of the plurality of dielectric material layers having a thickness and a dielectric constant that provides a dielectric withstand voltage across the respective thickness of equal to or greater than 150 Volts peak and equal to or less than 1,500 Volts peak; and, the plurality of layers having an overall thickness equal to or less than one wavelength of the minimum frequency in the plurality of layers.
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公开(公告)号：US20250075011A1
公开(公告)日：2025-03-06
申请号：US18950400
申请日：2024-11-18
Applicant: ROGERS CORPORATION
Inventor： Trevor Polidore , Dirk Baars , Thomas A. Koes , Bruce Fitts , Murali Sethumadhavan
IPC: C08F2/50 , B29C64/106 , B29K33/00 , B29K35/00 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C08F20/18 , C08F22/10 , C08F22/20 , C08F22/22 , C08F136/06 , C08K3/22
Abstract: A photocurable composition for stereolithographic three-dimensional printing, wherein the photocurable composition comprises a photoreactive oligomer component comprising a hydrophobic oligomer comprising a photoreactive end group, a photoreactive monomer component comprising a photoreactive monomer having a photoreactive end group, and a photoinitiation composition comprising a photoinitiator; the photocurable composition has a viscosity of 250 to 10,000 centipoise at 22° C., determined using a Brookfield viscometer; and the photocured composition has a dielectric loss of less than 0.010, preferably less than 0.008, more preferably less than 0.006, most preferably less than 0.004, each determined by split-post dielectric resonator testing at 10 gigahertz at 23° C.
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公开(公告)号：US11787878B2
公开(公告)日：2023-10-17
申请号：US17831554
申请日：2022-06-03
Applicant: ROGERS CORPORATION
Inventor： Trevor Polidore , Dirk Baars , Thomas A. Koes , Bruce Fitts , Murali Sethumadhavan
IPC: C08F2/46 , C08F2/50 , C08G61/04 , B29C64/106 , C08F22/10 , C08F20/18 , C08F22/20 , C08F22/22 , C08F136/06 , C08K3/22 , B33Y10/00 , B33Y70/00 , B33Y80/00 , B29K33/00 , B29K35/00
CPC classification number: C08F2/50 , B29C64/106 , C08F20/18 , C08F22/1006 , C08F22/20 , C08F22/22 , C08F136/06 , C08K3/22 , B29K2033/08 , B29K2035/00 , B29K2995/0006 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C08K2003/2227 , C08K2003/2237
Abstract: A photocurable composition for stereolithographic three-dimensional printing, wherein the photocurable composition comprises a photoreactive oligomer component comprising a hydrophobic oligomer comprising a photoreactive end group, a photoreactive monomer component comprising a photoreactive monomer having a photoreactive end group, and a photoinitiation composition comprising a photoinitiator; the photocurable composition has a viscosity of 250 to 10,000 centipoise at 22° C., determined using a Brookfield viscometer; and the photocured composition has a dielectric loss of less than 0.010, preferably less than 0.008, more preferably less than 0.006, most preferably less than 0.004, each determined by split-post dielectric resonator testing at 10 gigahertz at 23° C.
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29.发明授权公开(公告)号：US11545753B2
公开(公告)日：2023-01-03
申请号：US17543195
申请日：2021-12-06
Applicant: ROGERS CORPORATION
Inventor： Stephen O'Connor , Gianni Taraschi , Christopher Brown , Kristi Pance , Karl E. Sprentall , Bruce Fitts , Dirk Baars , William Blasius , Murali Sethumadhavan , Roshin Rose George , Michael S. White , Michael Lunt , Sam Henson , John Dobrick
Abstract: An electromagnetic, EM, device, includes: a substrate having a dielectric layer and a first conductive layer at a first side of the substrate, the substrate having a via that extends at least partially through the substrate from the first side toward an opposing second side of the substrate; at least one dielectric structure having at least one non-gaseous dielectric material that forms a first dielectric portion that extends outward from the first side of the substrate, the first dielectric portion having a first average dielectric constant, the at least one dielectric structure further having a second dielectric portion that is contiguous with the first dielectric portion; wherein the second dielectric portion extends into the via of the substrate, the via having a mechanical interlock surface; and wherein the at least one dielectric structure includes a mechanical interlock between the second dielectric portion and the mechanical interlock surface of the via of the substrate.
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公开(公告)号：US20220298270A1
公开(公告)日：2022-09-22
申请号：US17831554
申请日：2022-06-03
Applicant: ROGERS CORPORATION
Inventor： Trevor Polidore , Dirk Baars , Thomas A. Koes , Bruce Fitts , Murali Sethumadhavan
IPC: C08F2/50 , B29C64/106 , C08F22/10 , C08F20/18 , C08F22/20 , C08F22/22 , C08F136/06 , C08K3/22
Abstract: A photocurable composition for stereolithographic three-dimensional printing, wherein the photocurable composition comprises a photoreactive oligomer component comprising a hydrophobic oligomer comprising a photoreactive end group, a photoreactive monomer component comprising a photoreactive monomer having a photoreactive end group, and a photoinitiation composition comprising a photoinitiator; the photocurable composition has a viscosity of 250 to 10,000 centipoise at 22° C., determined using a Brookfield viscometer; and the photocured composition has a dielectric loss of less than 0.010, preferably less than 0.008, more preferably less than 0.006, most preferably less than 0.004, each determined by split-post dielectric resonator testing at 10 gigahertz at 23° C.
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