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H01F1/0577
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ELECTRICITY
H01
Electric elements
H01F
MAGNETS INDUCTANCES TRANSFORMERS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F1/00
Magnets or magnetic bodies characterised by the magnetic materials therefor Selection of materials for their magnetic properties
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H01F1/0577
sintered
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Patents Grants
last 30 patents
Information
Patent Grant
Rare earth permanent magnet material, raw material composition, pre...
Patent number
12,272,472
Issue date
Apr 8, 2025
FUJIAN GOLDEN DRAGON RARE- EARTH Co., Ltd.
Zongbo Liao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Anisotropic rare earth sintered magnet and method for producing the...
Patent number
12,272,473
Issue date
Apr 8, 2025
Shin-Etsu Chemical Co., Ltd.
Tadao Nomura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sintered magnet and production method for sintered magnet
Patent number
12,234,534
Issue date
Feb 25, 2025
Hitachi, Ltd.
Matahiro Komuro
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of producing sintered magnet
Patent number
12,205,738
Issue date
Jan 21, 2025
LG Chem, Ltd.
Tae Hoon Kim
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Feedstock and heterogeneous structure for tough rare earth permanen...
Patent number
12,205,762
Issue date
Jan 21, 2025
Iowa State University Research Foundation, Inc.
Jun Cui
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Rare earth permanent magnet material and raw material composition,p...
Patent number
12,198,840
Issue date
Jan 14, 2025
FUJIAN GOLDEN DRAGON RARE- EARTH Co., Ltd.
Qin Lan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Rare earth magnet and preparation method thereof
Patent number
12,131,850
Issue date
Oct 29, 2024
SANVAC (BEIJING) MAGNETICS CO., LTD.
Guoan Chen
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for producing sintered magnet and sintered magnet
Patent number
12,119,150
Issue date
Oct 15, 2024
LG Chem, Ltd.
Nakheon Sung
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Gradient Nd—Fe—B magnet and a method of production
Patent number
12,080,478
Issue date
Sep 3, 2024
YANTAI SHOUGANG MAGNETIC MATERIALS INC.
Kunkun Yang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Rare earth permanent magnet and rotating electric machine including...
Patent number
12,074,475
Issue date
Aug 27, 2024
TDK Corporation
Takuma Hayakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Low-cost rare earth magnet and corresponding manufacturing method t...
Patent number
12,057,263
Issue date
Aug 6, 2024
Yantai Dongxing Magnetic Materials Inc.
Chuanshen Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Mold for and method of producing polar anisotropic ring-shaped bond...
Patent number
12,040,128
Issue date
Jul 16, 2024
Nichia Corporation
Masahiro Abe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for increasing the coercivity of a sintered type NdFeB perma...
Patent number
12,027,307
Issue date
Jul 2, 2024
Yantai Shougang Magnetic Materials Inc
Chuanshen Wang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Methods for tailoring magnetism, and structures obtained therefrom
Patent number
12,027,293
Issue date
Jul 2, 2024
HRL Laboratories, LLC
Brennan Yahata
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
R-T-B based permanent magnet and motor
Patent number
12,020,836
Issue date
Jun 25, 2024
TDK Corporation
Koji Miura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Manufacturing method of sintered magnet
Patent number
12,020,835
Issue date
Jun 25, 2024
LG Chem, Ltd.
Tae Hoon Kim
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
R-FE-B-based sintered magnet with low B content and preparation met...
Patent number
11,993,836
Issue date
May 28, 2024
FUJIAN GOLDEN DRAGON RARE- EARTH Co., Ltd.
Qin Lan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Sintered neodymium-iron-boron magnet and preparation method thereof
Patent number
11,984,244
Issue date
May 14, 2024
Baotou Jinmeng Magnetic Materials Co., Ltd.
Yujun Zeng
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for preparing sintered magnet and sintered magnet
Patent number
11,978,576
Issue date
May 7, 2024
LG Chem, Ltd.
In Gyu Kim
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method about increasing the coercivity of a sintered type NdFeB per...
Patent number
11,948,734
Issue date
Apr 2, 2024
Yantai Shougang Magnetic Materials Inc
Chuanshen Wang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Grain boundary engineering of sintered magnetic alloys and the comp...
Patent number
11,942,245
Issue date
Mar 26, 2024
Noveon Magnetics Inc.
Miha Zakotnik
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
NdFeB alloy powder for forming high-coercivity sintered NdFeB magne...
Patent number
11,923,114
Issue date
Mar 5, 2024
YANTAI SHOUGANG MAGNETIC MATERIALS INC.
Kunkun Yang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for producing rare earth sintered magnet
Patent number
11,915,845
Issue date
Feb 27, 2024
Shin-Etsu Chemical Co., Ltd.
Taiga Asai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Preparation device and method of ceramic coating on a sintered type...
Patent number
11,908,600
Issue date
Feb 20, 2024
Yantai Dongxing Magnetic Materials Inc.
Chuanshen Wang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Preparation method of ring-shaped sintered Nd—Fe—B magnet and its m...
Patent number
11,881,351
Issue date
Jan 23, 2024
YANTAI SHOUGANG MAGNETIC MATERIALS INC.
Zhanji Dong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Rare earth magnet and producing method thereof
Patent number
11,869,690
Issue date
Jan 9, 2024
Toyota Jidosha Kabushiki Kaisha
Noritsugu Sakuma
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Permanent magnets with tailored texture and magnetic orientation
Patent number
11,862,369
Issue date
Jan 2, 2024
HRL Laboratories, LLC
Brennan Yahata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of preparing a high-coercivity sintered NdFeB magnet
Patent number
11,854,736
Issue date
Dec 26, 2023
Yantai Dongxing Magnetic Materials Inc.
Kunkun Yang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of manufacturing permanent magnets
Patent number
11,842,832
Issue date
Dec 12, 2023
Advanced Magnet Lab, Inc.
Rainer Meinke
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
R-T-B-based magnet, motor, and generator
Patent number
11,837,915
Issue date
Dec 5, 2023
TDK Corporation
Tomohiro Kajita
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Modified Sintered Neodymium-iron-boron Permanent Magnetic Material...
Publication number
20250118465
Publication date
Apr 10, 2025
ZHEJIANG DONGYANG DMEGC RARE EARTH MAGNET CO., LTD
Xiaoxin AN
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
FEEDSTOCK AND HETEROGENEOUS STRUCTURES FOR TOUGH RARE EARTH PERMANE...
Publication number
20250095914
Publication date
Mar 20, 2025
Iowa State University Research Foundation, Inc.
Jun Cui
B22 - CASTING POWDER METALLURGY
Information
Patent Application
NEODYMIUM-IRON-BORON MAGNET MATERIAL AND PREPARATION METHOD THEREFO...
Publication number
20250087394
Publication date
Mar 13, 2025
FUJIAN GOLDEN DRAGON RARE-EARTH Co., Ltd.
Weiguo MOU
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HIGH-PERFORMANCE SINTERED NEODYMIUM-IRON-BORON MAGNET AND PREPARATI...
Publication number
20250075295
Publication date
Mar 6, 2025
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
NEODYMIUM-IRON-BORON MAGNET MATERIAL, PREPARATION THEREFOR, AND APP...
Publication number
20250069785
Publication date
Feb 27, 2025
FUJIAN GOLDEN DRAGON RARE-EARTH Co., Ltd.
Weiguo MOU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NEODYMIUM-IRON-BORON MAGNET AS WELL AS PREPARATION METHOD THEREFOR...
Publication number
20250069784
Publication date
Feb 27, 2025
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Yongjiang YU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HOT-DEFORMED R-Fe-B MAGNET FOR VARIABLE-MAGNETIC-FORCE MOTOR, VARIA...
Publication number
20250054664
Publication date
Feb 13, 2025
National Institute for Materials Science
Xin TANG
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR PRODUCING RARE EARTH IRON-BASED SINTERED MAGNET, APPARAT...
Publication number
20250037933
Publication date
Jan 30, 2025
MINEBEA MITSUMI INC.
Yu OKAWARA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
R-T-B PERMANENT MAGNET
Publication number
20250011904
Publication date
Jan 9, 2025
TDK CORPORTION
Hiroki KAWAMURA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-T-B BASED PERMANENT MAGNET
Publication number
20250014792
Publication date
Jan 9, 2025
TDK Corporation
Hiroki KAWAMURA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HIGH-REMANENCE NEODYMIUM-IRON-BORON MAGNET, AND PREPARATION METHOD...
Publication number
20250006411
Publication date
Jan 2, 2025
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Yongjiang YU
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ANISOTROPIC NANOCRYSTALLINE RARE EARTH PERMANENT MAGNET AND PREPARA...
Publication number
20240420873
Publication date
Dec 19, 2024
SICHUAN UNIVERSITY
Ying LIU
B22 - CASTING POWDER METALLURGY
Information
Patent Application
HIGH-COERCIVITY ND-FE-B SERIES SINTERED MAGNET AND PREPARATION METH...
Publication number
20240412903
Publication date
Dec 12, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Yongjiang YU
B22 - CASTING POWDER METALLURGY
Information
Patent Application
METHOD FOR PRODUCING RFeB-BASED MAGNET, AND ALLOY FOR GRAIN BOUNDAR...
Publication number
20240395456
Publication date
Nov 28, 2024
DAIDO STEEL CO., LTD.
Mayu KIKUCHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
R-T-B BASED SINTERED MAGNET
Publication number
20240363272
Publication date
Oct 31, 2024
Proterial, Ltd.
Futoshi KUNIYOSHI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-T-B BASED PERMANENT MAGNET AND METHOD OF MANUFACTURING THE SAME
Publication number
20240363271
Publication date
Oct 31, 2024
TDK Corporation
Hiroki KAWAMURA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-T-B MAGNET AND PREPARATION METHOD THEREFOR
Publication number
20240355515
Publication date
Oct 24, 2024
Fujian Golden Dragon Rare-Earth Co., Ltd
Weiguo Mou
B22 - CASTING POWDER METALLURGY
Information
Patent Application
RARE EARTH SINTERED MAGNET, METHOD FOR PRODUCING RARE EARTH SINTERE...
Publication number
20240339252
Publication date
Oct 10, 2024
Mitsubishi Electric Corporation
Akito IWASAKI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
CORROSION-RESISTANT AND HIGH-PERFORMANCE SINTERED NEODYMIUM-IRON-BO...
Publication number
20240331898
Publication date
Oct 3, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-T-B BASED PERMANENT MAGNET
Publication number
20240331899
Publication date
Oct 3, 2024
TDK Corporation
Ikuya KOKAWA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-FE-B SINTERED MAGNET, PREPARATION METHOD AND USE THEREOF
Publication number
20240321489
Publication date
Sep 26, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhaopu XU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
R-T-B BASED PERMANENT MAGNET
Publication number
20240321491
Publication date
Sep 26, 2024
TDK Corporation
Takuma HAYAKAWA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-T-B BASED PERMANENT MAGNET
Publication number
20240321490
Publication date
Sep 26, 2024
TDK Corporation
Takuma HAYAKAWA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
LOW-COST HIGH-COERCIVITY LACE-RICH NEODYMIUM-IRON-BORON PERMANENT M...
Publication number
20240274333
Publication date
Aug 15, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Bingqiang SHI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-T-B MAGNET AND PREPARATION METHOD THEREOF
Publication number
20240274334
Publication date
Aug 15, 2024
BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
Fangyun WEI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
EXPANDABLE SINTERED NEODYMIUM-IRON-BORON MAGNET, PREPARATION METHOD...
Publication number
20240274332
Publication date
Aug 15, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
NEODYMIUM-IRON-BORON MAGNET PREPARED BY USING WASTE SINTERED MAGNET...
Publication number
20240242862
Publication date
Jul 18, 2024
JL MAG RARE EARTH CO., LTD.
Yunpeng CHEN
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD OF MAKING A MAGNETIC MATERIAL AND A FLUIDIZED BED MIXER FOR...
Publication number
20240226827
Publication date
Jul 11, 2024
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Qigui Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Application
NdFeB Magnet and Preparation Method Thereof
Publication number
20240222006
Publication date
Jul 4, 2024
GANZHOU DMEGC RARE EARTH MAGNET CO.,LTD
Longgui LI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
SINTERED R-T-B BASED MAGNET
Publication number
20240212895
Publication date
Jun 27, 2024
Proterial, Ltd.
Futoshi KUNIYOSHI
H01 - BASIC ELECTRIC ELEMENTS