公开(公告)号：US20240158302A1

公开(公告)日：2024-05-16

申请号：US18388229

申请日：2023-11-09

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Lance Young

IPC: C04B35/26 ,  C04B35/626 ,  C04B35/634 ,  C04B35/64

CPC classification number: C04B35/2633 ,  C04B35/62675 ,  C04B35/62695 ,  C04B35/634 ,  C04B35/64 ,  C04B2235/6567 ,  C04B2235/767 ,  C04B2235/96

Abstract: A ferrite composition having a formula of BaxNi2-yCuyTi3FezO31, wherein 4.5≤x≤5.5 0

公开(公告)号：US11679991B2

公开(公告)日：2023-06-20

申请号：US16938396

申请日：2020-07-24

Applicant: ROGERS CORPORATION

Inventor： Qifan Li ,  Yajie Chen

IPC: C01G49/00 ,  C08L23/00 ,  C08L27/12 ,  C08L61/16 ,  C08L81/02 ,  H01F1/34

CPC classification number: C01G49/009 ,  C08L23/00 ,  C08L27/12 ,  C08L61/16 ,  C08L81/02 ,  H01F1/348 ,  C01P2002/70 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2006/40 ,  C01P2006/42

Abstract: In an aspect, a multiphase ferrite comprises a Co2W phase that is optionally doped with Ru; a CFO phase having the formula Mer“Co1−rFe2+zO4, wherein Me” is at least one of Ni, Zn, or Mg, r is 0 to 0.5, and z is −0.5 to 6 0.5; and a CoRu-BaM phase having the formula BaCox+yRuyFe12−(2/3)x−2yO19, wherein x is 0 to 2, y is 0.01 to 2; and the Ba can be partially replaced by at least one of Sr or Ca. In another aspect, a composite can comprise a polymer and the multiphase ferrite. In yet another aspect, a method of making a multiphase ferrite can comprise mixing and grinding a CoRu-BaM phase ferrite and a CFO phase ferrite to form a mixture; and sintering the mixture in an oxygen atmosphere to form the multiphase ferrite.

公开(公告)号：US11476022B2

公开(公告)日：2022-10-18

申请号：US17000610

申请日：2020-08-24

Applicant: ROGERS CORPORATION

Inventor： Li Zhang ,  Yajie Chen

IPC: H01F1/34 ,  C09C1/24 ,  C08K9/02 ,  C08K3/22 ,  C23C18/34

Abstract: In an aspect, a composition comprises a plurality of magnetic particles. The magnetic particles each independently comprise a nickel ferrite core having the formula Ni1−xMxPe2+yO4, wherein M is at least one of Zn, Mg, Co, Cu, Al, Mn, or Cr; x is 0 to 0.95, and y=−0.5 to 0.5; and an iron nickel shell at least partially surrounding the core, wherein the iron nickel shell comprises iron, nickel, and optionally M. In another aspect, a method of forming the magnetic particles comprises heat treating a plurality of nickel ferrite particles in a hydrogen atmosphere to form the plurality of magnetic particles having the iron nickel shell on the nickel ferrite core. In yet another aspect, a composite can comprise the magnetic particles and a polymer.

公开(公告)号：US20210179442A1

公开(公告)日：2021-06-17

申请号：US17029733

申请日：2020-09-23

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Qifan Li

IPC: C01G49/00 ,  H05B6/72

Abstract: In an aspect, a ferrite composition comprises a BiRuCo-M-type ferrite having the formula Me1-xBixCoyRuzFe12-tO19, wherein Me is at least one of Sr, Pb, or Ba; x is 0.01 to 0.5; y is 0.1 to 2; z is 0 to 4, and t is 0 to 4; wherein the Co can be at least partially replaced by at least one of Zn, Cu, or Mg by an amount of less than y, and the Ru can be at least partially replaced by at least one of Ti, Sn, or Zr, where the substitution amount is not more than z or is less than z.

公开(公告)号：US20210065943A1

公开(公告)日：2021-03-04

申请号：US17000610

申请日：2020-08-24

Applicant: ROGERS CORPORATION

Inventor： Li Zhang ,  Yajie Chen

IPC: H01F1/34 ,  C09C1/24 ,  C08K9/02 ,  C08K3/22

Abstract: In an aspect, a composition comprises a plurality of magnetic particles. The magnetic particles each independently comprise a nickel ferrite core having the formula Ni1−xMxPe2+yO4, wherein M is at least one of Zn, Mg, Co, Cu, Al, Mn, or Cr; x is 0 to 0.95, and y=−0.5 to 0.5; and an iron nickel shell at least partially surrounding the core, wherein the iron nickel shell comprises iron, nickel, and optionally M. In another aspect, a method of forming the magnetic particles comprises heat treating a plurality of nickel ferrite particles in a hydrogen atmosphere to form the plurality of magnetic particles having the iron nickel shell on the nickel ferrite core. In yet another aspect, a composite can comprise the magnetic particles and a polymer.

公开(公告)号：US20200161034A1

公开(公告)日：2020-05-21

申请号：US16676736

申请日：2019-11-07

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Xiaoyu Zhang ,  Li Zhang ,  Yuanyuan Xing

IPC: H01F1/16 ,  H01F1/38 ,  H01F41/18 ,  H01F41/32

Abstract: A multilayer film includes a substrate; a first magnetic layer disposed on the substrate and a second magnetic layer disposed on the first magnetic layer. The first magnetic layer includes Fe(50-80)N(10-20)B(1-20)M(0-10), wherein M is Si, Ta, Zr, Ti, Co, or a combination thereof. The second magnetic layer includes Fe(50-90)N(10-50) or Fe(60-90)N(1-10)Ta(5-30). The multilayer magnetic film has, over a frequency range of 50 MHz to 10 GHz, a magnetic permeability of greater than or equal to 1800 over a selected frequency band in the frequency range; a magnetic loss tangent of less than or equal to 0.3 over a selected frequency band in the frequency range; and a cutoff frequency of greater than or equal to 1 GHz, or greater than or equal to 2 GHz.

公开(公告)号：US20190221343A1

公开(公告)日：2019-07-18

申请号：US16242551

申请日：2019-01-08

Applicant: Rogers Corporation

Inventor： Yajie Chen ,  Karl Edward Sprentall ,  Kristi Pance

IPC: H01F1/33 ,  H01F1/147 ,  B22F1/00 ,  B22F1/02 ,  H01F1/00 ,  C01G49/02

CPC classification number: H01F1/33 ,  B22F1/0018 ,  B22F1/025 ,  B82Y25/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01G49/02 ,  C01P2006/42 ,  H01F1/0027 ,  H01F1/0054 ,  H01F1/1475 ,  H01F1/26

Abstract: In an aspect, a magnetic particle, comprises a core comprising iron, and a second metal comprising cobalt, nickel, or a combination thereof; wherein a core atomic ratio of the iron to the second metal is 50:50 to 75:25; and a shell at least partially surrounding the core, and comprising an iron oxide, an iron nitride, or a combination thereof, and the second metal. In another aspect, a magneto-dielectric material comprises a polymer matrix and a plurality of the magnetic particles; wherein the magneto-dielectric material has a magnetic loss tangent of less than or equal to 0.07 at 1 GHz.

公开(公告)号：US12230899B2

公开(公告)日：2025-02-18

申请号：US17948766

申请日：2022-09-20

Applicant: ROGERS CORPORATION

Inventor： Shailesh Pandey ,  Yajie Chen ,  Lance Young ,  Kristi Pance ,  Lori Brock

IPC: H01Q9/04 ,  H01Q1/38 ,  H01Q5/392

Abstract: A dual band antenna includes a substrate having a magnetodielectric material, and an electrically conductive patch disposed on the substrate, wherein the patch has at least one in-plane cutout having an H-shape or an I-shape, as observed in a plan view of the patch.

公开(公告)号：US11827527B2

公开(公告)日：2023-11-28

申请号：US17029733

申请日：2020-09-23

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Qifan Li

IPC: C01G49/00 ,  H05B6/72

CPC classification number: C01G49/0036 ,  H05B6/72

Abstract: In an aspect, a ferrite composition comprises a BiRuCo-M-type ferrite having the formula Me1-xBixCoyRuzFe12-tO19, wherein Me is at least one of Sr, Pb, or Ba; x is 0.01 to 0.5; y is 0.1 to 2; z is 0 to 4, and t is 0 to 4; wherein the Co can be at least partially replaced by at least one of Zn, Cu, or Mg by an amount of less than y, and the Ru can be at least partially replaced by at least one of Ti, Sn, or Zr, where the substitution amount is not more than z or is less than z.

公开(公告)号：US11691892B2

公开(公告)日：2023-07-04

申请号：US17166352

申请日：2021-02-03

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Li Zhang ,  Shawn Williams

IPC: H01F1/34 ,  H01F1/11 ,  C01G51/00 ,  C04B35/26 ,  C08K3/22

CPC classification number: C01G51/66 ,  C08K3/22 ,  H01F1/348 ,  C01P2004/04 ,  C01P2004/64 ,  C08K2003/2265 ,  C08K2201/001 ,  C08K2201/005 ,  C08K2201/01 ,  C08K2201/011

Abstract: In an aspect, a Co2Z ferrite has the formula: (Ba1-xSrx)3Co2+yMyFe24-2y-zO41. M is at least one of Mo, Ir, or Ru. The variable x can be 0 to 0.8, or 0.1 to 0.8. The variable y can be 0 to 0.8, or 0.01 to 0.8. The variable z can be −2 to 2. The Co2Z ferrite can have an average grain size of 5 to 100 nanometers, or 30 to 80, or 10 to 40 nanometers as measured using at least one of transmission electron microscopy, field emission scanning electron microscopy, or x-ray diffraction.