公开(公告)号：US12098444B2

公开(公告)日：2024-09-24

申请号：US17461174

申请日：2021-08-30

Applicant: Tekna Plasma Systems Inc.

Inventor： Jiayin Guo ,  Eric Bouchard ,  Richard Dolbec

IPC: H01G4/008 ,  B22F1/052 ,  B22F1/054 ,  B22F1/065 ,  B22F9/12 ,  C22C1/04 ,  H01G4/012 ,  H01G4/30

CPC classification number: C22C1/0433 ,  B22F1/052 ,  B22F1/054 ,  B22F1/056 ,  B22F1/065 ,  B22F9/12 ,  H01G4/008 ,  B22F2304/05 ,  H01G4/012 ,  H01G4/30

Abstract: The present disclosure generally relates to metallic powders for use in multilayer ceramic capacitors, to multilayer ceramic capacitors containing same and to methods of manufacturing such powders and capacitors. The disclosure addresses the problem of having better controlled smaller particle size distribution, with minimal contaminant contents which can be implemented at an industrial scale.

公开(公告)号：US20240312704A1

公开(公告)日：2024-09-19

申请号：US18600937

申请日：2024-03-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  NICHIA CORPORATION

Inventor： Tomonori INUZUKA ,  Masaaki ITO ,  Motoki HIRAOKA ,  Hisashi MAEHARA

IPC: H01F41/02 ,  B22F1/00 ,  B22F1/052 ,  B22F1/145 ,  B22F1/16 ,  B22F3/16 ,  B22F3/24 ,  H01F1/059

CPC classification number: H01F41/0266 ,  B22F1/052 ,  B22F1/09 ,  B22F1/145 ,  B22F1/16 ,  B22F3/16 ,  B22F3/24 ,  H01F1/059 ,  B22F2003/248 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2301/35 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00

Abstract: A method of producing a SmFeN-based rare earth magnet having excellent magnetic properties is provided.
The present disclosure relates to a method of producing a SmFeN-based rare earth magnet in which a powder having a large particle size and a powder having a small particle size are used as SmFeN-based anisotropic magnetic powders, and the powders are separately dry treated at temperatures appropriate for the respective particle sizes when the powders are surface treated using phosphoric acid source to perform phosphoric acid coating.

公开(公告)号：US20240282742A1

公开(公告)日：2024-08-22

申请号：US18582801

申请日：2024-02-21

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Shamik Ghosal ,  Remya Chandran ,  Venodh Manoharan ,  Siuli Sarkar ,  Bawa Singh ,  Rahul Raut

IPC: H01L23/00 ,  B22F1/052 ,  B22F1/07 ,  B22F1/102 ,  B22F5/00 ,  B22F9/24 ,  B23K35/02 ,  B23K35/30 ,  B82Y40/00

CPC classification number: H01L24/29 ,  B22F1/052 ,  B22F1/07 ,  B22F1/102 ,  B22F5/006 ,  B22F9/24 ,  B23K35/025 ,  B23K35/302 ,  B22F2301/10 ,  B22F2304/054 ,  B22F2304/056 ,  B22F2304/058 ,  B82Y40/00

Abstract: A sintering powder comprising copper particles, wherein: the particles are at least partially coated with a capping agent, and the particles exhibit a D10 of greater than or equal to 100 nm and a D90 of less than or equal to 2000 nm.

公开(公告)号：US12059725B2

公开(公告)日：2024-08-13

申请号：US18083634

申请日：2022-12-19

Applicant: Metal Powder Works, LLC

Inventor： John E. Barnes ,  Christopher B. Aldridge

IPC: B22F1/05 ,  B22F1/052 ,  B22F1/065 ,  B22F1/14 ,  B22F9/04 ,  B22F9/08 ,  B22F10/20 ,  B22F10/28 ,  B22F10/34 ,  B22F12/90 ,  B23B1/00 ,  B23B5/00 ,  B23B29/12 ,  B23P17/06 ,  B23P25/00 ,  B29B9/02 ,  B29B9/12 ,  B33Y10/00 ,  B33Y70/00 ,  C04B35/622

CPC classification number: B22F1/05 ,  B22F1/052 ,  B22F1/065 ,  B22F1/14 ,  B22F9/04 ,  B22F9/082 ,  B22F10/20 ,  B22F10/34 ,  B22F12/90 ,  B23B1/00 ,  B23B5/00 ,  B23P17/06 ,  B29B9/02 ,  B29B9/12 ,  B33Y70/00 ,  C04B35/622 ,  B22F2009/046 ,  B22F10/28 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  B23B29/125 ,  B23P25/006 ,  B29B2009/125 ,  B33Y10/00 ,  C04B2235/6026 ,  Y02P10/25 ,  B22F2999/00 ,  B22F1/14 ,  B22F1/065 ,  B22F2998/10 ,  B22F2009/046 ,  B22F10/34 ,  B22F10/28 ,  B22F2999/00 ,  B22F2009/046 ,  B22F2201/01

Abstract: A powder production method includes providing an elongated workpiece and repeatedly contacting an outer surface of the elongated workpiece with a reciprocating cutter according to a predetermined at least one frequency to produce a powder. The powder includes a plurality of particles, wherein at least 95% of the produced particles have a diameter or maximum dimension ranging from about 10 μm to about 200 μm. A system for producing powders having a plurality of particles including a cutter and at least one controller is also provided herein.

公开(公告)号：US12053819B2

公开(公告)日：2024-08-06

申请号：US18119060

申请日：2023-03-08

Applicant: HONDA MOTOR CO., LTD.

Inventor： Masaki Shinkawa ,  Kazuo Kikawa

IPC: B22F1/052 ,  B22F1/12 ,  B22F10/38 ,  B33Y70/10

CPC classification number: B22F1/052 ,  B22F1/12 ,  B22F10/38 ,  B33Y70/10

Abstract: A powder metal material for additive manufacturing contains: (A) a non-magnetic steel powder which is free of nitrogen; and (B) a ferrovanadium nitride powder, and a particle size of the component (B) is 15.0 μm≤D50≤25.0 μm in terms of volume average particle size, and a content of the component (B) is 0.3 mass % to 3.0 mass % with respect to a total amount of the powder metal material.

公开(公告)号：US12042869B2

公开(公告)日：2024-07-23

申请号：US17595739

申请日：2020-05-25

Applicant: Metalpine GmbH

Inventor： Martin Dopler ,  Christian Weiss

IPC: B22F9/08 ,  B22F1/052

CPC classification number: B22F9/082 ,  B22F1/052 ,  B22F2009/0824 ,  B22F2009/0832 ,  B22F2009/084 ,  B22F2009/086 ,  B22F2009/0888 ,  B22F2201/02 ,  B22F2201/30 ,  B22F2202/13

Abstract: A method for producing material powder, comprising providing material and an atomization gas charged with an atomization gas pressure by means of an atomization gas compressor to an atomization device, melting the material and pulverizing the molten material into material powder by means of charging the molten material with the atomization gas using the atomization device, introducing the material powder from the atomization device into a pressurized container and providing a conveyor gas charged with a conveyer gas pressure by means of a conveyer gas compressor to the pressurized container, wherein the conveyor gas pressure is higher than the atmospheric pressure and lower than the atomization gas pressure, as well as a device for carrying out the method.

公开(公告)号：US20240181525A1

公开(公告)日：2024-06-06

申请号：US18285037

申请日：2022-03-23

Applicant: FUJIMI INCORPORATED

Inventor： Junya YAMADA ,  Hiroyuki IBE ,  Yuta KATO

IPC: B22F1/00 ,  B22F1/052 ,  B22F1/12 ,  B22F10/20 ,  B33Y10/00 ,  B33Y70/10

CPC classification number: B22F1/09 ,  B22F1/052 ,  B22F1/12 ,  B22F10/20 ,  B33Y10/00 ,  B33Y70/10 ,  B22F2301/15 ,  B22F2302/10 ,  B22F2302/40 ,  B22F2304/10

Abstract: The powder material for additive manufacturing disclosed herein includes tungsten carbide (WC), cobalt (Co), and a carbon additive including carbon (C) as a main constituent element, and the value of a carbon content A (% by mass), which is represented by the following formula: [(mass of C derived from WC)+(mass of C derived from carbon additive)]/(mass of WC)×100, satisfies the condition of 6.4≤A≤7.2.

公开(公告)号：US20240177902A1

公开(公告)日：2024-05-30

申请号：US18358191

申请日：2023-07-25

Applicant: TDK CORPORATION

Inventor： Kazuhiro YOSHIDOME ,  Kensuke ARA

IPC: H01F1/20 ,  B22F1/052 ,  B22F1/08 ,  B22F1/103 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F3/24 ,  B22F9/08

CPC classification number: H01F1/20 ,  B22F1/052 ,  B22F1/08 ,  B22F1/103 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F3/24 ,  B22F9/082 ,  B22F2003/248 ,  B22F2009/0824 ,  B22F2301/35 ,  B22F2304/10 ,  B22F2998/10

Abstract: Provided is a magnetic core containing metal magnetic particles. A total area ratio occupied by the metal magnetic particles on a cross-section of the magnetic core is 75% or more. The metal magnetic particles include first large particles having an amorphous structure and having a Heywood diameter of 3 μm or more on the cross-section of the magnetic core, and second large particles having a nanocrystal structure and having a Heywood diameter of 3 μm or more on the cross-section of the magnetic core. An insulation coating of the first large particles is thicker than an insulation coating of the second large particles.

公开(公告)号：US20240116110A1

公开(公告)日：2024-04-11

申请号：US18066843

申请日：2022-12-15

Applicant: Honeywell Federal Manufacturing & Technologies, LLC

Inventor： Christian Gentry Miles Barr ,  Timothy Prost

IPC: B22F10/28 ,  B22F1/052 ,  B22F1/16 ,  B22F9/08

CPC classification number: B22F10/28 ,  B22F1/052 ,  B22F1/16 ,  B22F9/08 ,  B22F2202/11 ,  B22F2301/10 ,  B22F2303/01 ,  B22F2304/10

Abstract: A micro-alloyed copper powder was produced using gas atomization reaction synthesis, with the alloy preferably comprising Cu-0.3Zr-0.15Ag wt. %. The novel copper alloy improves the manufacturability of copper in powder bed fusion manufacturing processes by minimizing or avoiding the prior art problems associated with oxidation of the copper precursor used in additive manufacturing. Advantageously, the provided copper alloy powder maintains the high electrical conductivity of copper while addressing the prior art oxidation issue.

公开(公告)号：US11942245B2

公开(公告)日：2024-03-26

申请号：US18069321

申请日：2022-12-21

Applicant: Noveon Magnetics Inc.

Inventor： Miha Zakotnik

IPC: C22C33/02 ,  B22F1/052 ,  B22F1/17 ,  B22F3/10 ,  B22F3/24 ,  B22F5/00 ,  B22F9/04 ,  C22C38/00 ,  H01F1/057 ,  B22F1/054 ,  B22F9/06 ,  H01F41/02

CPC classification number: H01F1/0577 ,  B22F1/052 ,  B22F1/17 ,  B22F3/1035 ,  B22F3/24 ,  B22F5/00 ,  B22F9/04 ,  C22C33/02 ,  C22C33/0207 ,  C22C38/00 ,  B22F1/054 ,  B22F1/056 ,  B22F2003/248 ,  B22F2009/044 ,  B22F9/06 ,  B22F2201/013 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2207/07 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F41/0293 ,  B22F2998/10 ,  B22F3/02 ,  B22F3/10 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2009/048 ,  B22F2201/013 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2999/00 ,  B22F3/02 ,  B22F2202/05 ,  B22F2998/10 ,  B22F2009/0824 ,  B22F2202/05 ,  B22F2998/10 ,  B22F9/06 ,  B22F2009/044 ,  B22F2999/00 ,  B22F1/17 ,  B22F2207/07 ,  C22C2202/02 ,  B22F2999/00 ,  B22F1/142 ,  B22F1/17 ,  C22C2202/02 ,  B22F2999/00 ,  B22F1/17 ,  C22C2202/02 ,  B22F2207/07 ,  B22F2999/00 ,  B22F1/17 ,  C22C2202/02 ,  B22F1/142

Abstract: The present disclosure is directed at methods of preparing rare earth-based permanent magnets having improved coercivity and remanence, the method comprising one or more steps comprising: (a) homogenizing a first population of particles of a first GBM alloy with a second population of particles of a second core alloy to form a composite alloy preform, the first GBM alloy being substantially represented by the formula: ACbRxCoyCudMz, the second core alloy being substantially represented by the formula G2Fe14B, where AC, R, M, G, b, x, y, and z are defined; (b) heating the composite alloy preform particles to form a population of mixed alloy particles; (c) compressing the mixed alloy particles, under a magnetic field of a suitable strength to align the magnetic particles with a common direction of magnetization and inert atmosphere, to form a green body; (d) sintering the green body; and (e) annealing the sintered body. Particular embodiments include magnets comprising neodymium-iron-boron core alloys, including Nd2Fe14B.