公开(公告)号：US12237105B2

公开(公告)日：2025-02-25

申请号：US17547809

申请日：2021-12-10

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Wanfeng Li ,  Michael W. Degner

IPC: H01F41/02 ,  B29C64/153 ,  B29C64/393 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  H01F1/053 ,  H01F1/10

Abstract: Permanent magnets and methods of making the same are disclosed herein. The permanent magnets include a 3D-printed, i.e., additively manufactured, framework and an infiltrate such that there is a discrete magnetic phase and a discrete non-magnetic phase or two discrete magnetic phases. The infiltrate may provide superior strength, elasticity or magnetic properties.

公开(公告)号：US12233581B2

公开(公告)日：2025-02-25

申请号：US17699583

申请日：2022-03-21

Applicant: SUMIDA CORPORATION

Inventor： Motomi Takahashi ,  Tomohiro Kajiyama ,  Teruaki Tanaka ,  Shinichi Sakamoto ,  Juichi Oki ,  Mitsugu Kawarai ,  Tsutomu Otsuka

IPC: B29C43/18 ,  B22F1/08 ,  B22F1/10 ,  B29C43/00 ,  B29C43/52 ,  H01F17/04 ,  H01F27/28 ,  H01F27/29 ,  H01F41/00 ,  H01F41/02 ,  H01F41/061 ,  H01F41/076 ,  B22F3/12 ,  B29K83/00 ,  B29K105/16 ,  B29K505/00 ,  B29L31/34

Abstract: A manufacturing method of a coil component comprising the steps of: preparing a coil assembly body in which a coil is attached on a magnetic core and a mold body which is formed with a cavity portion in the inside thereof and which includes at least one opening portion, putting a viscous admixture including magnetic powders and thermosetting resin and the coil assembly body in the cavity portion, pushing the put-in viscous admixture in the mold body, and thermally-curing the pushed-in viscous admixture and forming a magnetic exterior body which covers the coil assembly body.

公开(公告)号：US12230438B2

公开(公告)日：2025-02-18

申请号：US17455155

申请日：2021-11-16

Applicant: NICHIA CORPORATION

Inventor： Satoshi Yamanaka ,  Takayuki Yano ,  Shuichi Tada ,  Masahiro Abe ,  Kenta Iwai

IPC: B29C45/00 ,  B29B7/88 ,  H01F1/057 ,  H01F41/02 ,  B29K77/00 ,  B29K505/00

Abstract: A method of producing a compound for bonded magnets, the method including: heat-curing a thermosetting resin and a curing agent having a ratio of the number of reactive groups of the curing agent to the number of reactive groups of the thermosetting resin of at least 2 but not higher than 11 to obtain an additive for bonded magnets; and kneading the additive for bonded magnets, magnetic powder, and a thermoplastic resin to obtain a compound for bonded magnets in which a filling ratio of the magnetic powder is at least 91.5% by mass.

公开(公告)号：US12230437B2

公开(公告)日：2025-02-18

申请号：US18137051

申请日：2023-04-20

Applicant: Trustees of Dartmouth College

Inventor： Bradley A. Reese ,  Ulrike G. K. Wegst ,  Charles R. Sullivan

IPC: H01F41/02 ,  B22F1/068 ,  B22F1/10 ,  B22F3/00 ,  B22F3/22 ,  H01F7/02

Abstract: In an embodiment, the present disclosure pertains to a method of making a composite. In some embodiments, the method includes applying an external magnetic field to a mixture composed of a plurality of magnetic materials in a container, in which the external magnetic field produces a homogenous and uniform magnetic flux in the container. In some embodiments, the method further includes solidifying the mixture to result in the growth of solvent crystals in the mixture, and subliming a solvent phase of the mixture in the container to thereby form a composite having uniformly aligned magnetic materials. In an additional embodiment, the present disclosure pertains to a composite having uniformly aligned magnetic materials. In some embodiments, a majority of the magnetic materials in the composite are aligned in the same direction.

公开(公告)号：US20250055435A1

公开(公告)日：2025-02-13

申请号：US18722653

申请日：2022-12-07

Applicant: SCHAFFNER EMV AG

Inventor： Andrew Cecil TUCKER ,  Tianyi ZHANG ,  Roland GENTSCH ,  Abiezer TEJEDA ,  Szymon PASKO

IPC: H03H7/01 ,  H01F27/24 ,  H01F27/28 ,  H01F41/02

Abstract: The invention relates to an electromagnetic interference (EMI) filter (100), having line-side terminals (L1-L3) for connecting to an electric supply(S) and load-side terminals (L1′-L3′) for connecting to a load device (L), the EMI filter (100) comprises a load-side passive EMI filter stage (1) connected 5 to the load-side terminals (L1′-L3′) and is configured to suppress common-mode and differential-mode noise. The EMI filter (100) also comprises a line-side active EMI filter stage (3) connected to the line-side terminals (L1-L3) and is configured to suppress differential-mode noise, and at least one intermediate active EMI filter 10stage (2) located between the load-side EMI filter stage (1) and the line-side EMI filter stage (3), configured to suppress common-mode noise. The invention relates also to a method for manufacturing the EMI filter (100).

公开(公告)号：US12217909B2

公开(公告)日：2025-02-04

申请号：US17700831

申请日：2022-03-22

Applicant: City University of Hong Kong Matter Science Research Institute (Futian)

Inventor： Jian Lu ,  Zhou Chen ,  Lei Wan ,  Yunhu He

IPC: C08K3/38 ,  B29C45/00 ,  B29C45/16 ,  C08L83/00 ,  C08L83/04 ,  H01F1/053 ,  H01F1/113 ,  H01F1/117 ,  H01F1/34 ,  H01F7/20 ,  H01F41/02 ,  H01H55/00 ,  B29C71/00 ,  B29K83/00 ,  B29K505/02 ,  B29K505/08 ,  B29K505/12 ,  C08K3/22

Abstract: Disclosed are a soft bistable magnetic actuator, a fabrication method thereof, a fatigue testing device, and an auto underwater vehicle. The method for fabricating the soft bistable magnetic actuator includes the following operations: casting a soft precursor by injection molding, wherein the soft precursor consists of a soft deformable portion and a soft peripheral portion surrounded, the soft deformable portion is made of magnetic particles and polymer, and the soft peripheral portion is made of a magnetic particle, a mixture of organic liquid, and polymer; and extracting the organic liquid by an organic solvent shrinks the soft peripheral portion, buckles the soft deformable portion towards one side.

公开(公告)号：US12211637B2

公开(公告)日：2025-01-28

申请号：US17540014

申请日：2021-12-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukinobu Masuda ,  Shigeto Yamamoto ,  Shingo Nakamoto ,  Kaori Takezawa

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/29 ,  H01F41/02 ,  H01F41/06

Abstract: A coil component comprises a first wire including a winding portion wound around a winding core portion of a core, a first end portion electrically connected to a terminal electrode provided in a first flange portion, and a first extended portion connecting the winding portion and the first end portion. In a first direction, the first end portion is positioned on a first side with respect to a central axis of the winding core portion, and a first boundary portion which is a boundary portion between the first extended portion and the winding portion is positioned on a second side with respect to the central axis. A corner of the winding core portion is positioned between the first boundary portion and the first end portion in a circumferential direction. A gap is interposed between the first extended portion and the corner.

公开(公告)号：US20250029764A1

公开(公告)日：2025-01-23

申请号：US18643852

申请日：2024-04-23

Applicant: Delta Electronics (Shanghai) Co., Ltd.

Inventor： Quanguang Chen ,  Jinping Zhou ,  Min Zhou ,  Wen Han ,  Ganyu Zhou

IPC: H01F27/00 ,  H01F41/00 ,  H01F41/02 ,  H01F41/10

Abstract: A magnetic component assembly and a manufacturing method thereof are disclosed. The magnetic component assembly includes a magnetic component and a peripheral structure. The magnetic component includes a magnetic core and a winding. The winding is embedded in the magnetic core, and passes through the top surface or the bottom surface of the magnetic core to form a pin. The peripheral structure is disposed adjacent to a peripheral side of the magnetic core. The magnetic component and the peripheral structure are combined to form a magnetic assembling body. The manufacturing method thereof includes a step of thinning the top surface or the bottom surface of the magnetic assembling body through a thinning process. The manufacturing method thereof includes another step of thinning the top surface or the bottom surface of the magnetic core through a thinning process, or thinning the pin through the thinning process.

公开(公告)号：US12205762B2

公开(公告)日：2025-01-21

申请号：US16350215

申请日：2018-10-15

Applicant: Iowa State University Research Foundation, Inc.

Inventor： Jun Cui ,  Baozhi Cui

IPC: H01F1/153 ,  B22F1/05 ,  B22F1/052 ,  B22F9/04 ,  H01F1/055 ,  H01F1/057 ,  H01F1/058 ,  H01F1/059 ,  H01F41/02 ,  B22F1/054 ,  B22F3/14 ,  B22F3/18 ,  B22F3/20 ,  B33Y10/00 ,  C22C19/07 ,  C22C38/00 ,  H01F1/08

Abstract: New types of particle feedstocks and heterogeneous grain structures are provided for rare earth permanent magnets (REPMs) and their production in a manner to significantly enhance toughness of the magnet with little or no sacrifice in the hard magnetic properties. The novel tough REPMs made from the feedstock have heterogeneous grain structures, such as bi-modal, tri-modal, multi-modal, laminated, gridded, gradient fine/coarse grain structures, or other microstructural heterogeneity and configurations, without changing the chemical compositions of magnets.

公开(公告)号：US12205761B2

公开(公告)日：2025-01-21

申请号：US17583882

申请日：2022-01-25

Applicant: Robert Bosch GmbH

Inventor： Michael Sturm ,  Kevin Wienen ,  Michael Yankonis

IPC: H01F41/02 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  H01F7/20 ,  H02N2/00

Abstract: A method for manufacturing a shaker device using 3D-printing (i.e., additive manufacturing). An electromagnet is formed by producing a bobbin body and winding an electrical conductor on the bobbin body to form an electromagnet coil. A cylindrical body is 3D-printed and the bobbin body with the electromagnet coil is coupled within an interior of the cylindrical body. A piston assembly is then positioned within the bobbin assembly. The shaker device is operated by controllably applying a magnetic field through the electromagnet coil that impinges a permanent magnet of the piston assembly to cause movement of the cylindrical body relative to the piston. By using these 3D printing techniques, the composition of materials can be varied within a single component part, fine structural details can be included in the components, and components can be 3D printed directly on each other to eliminate tolerance issues relating to small variations in component size.