H01F 1/059

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Class  H01F : MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES


Subclass 1/059: Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (thin magnetic films characterised by their composition H01F 10/1) of inorganic materials (H01F 1/44 takes precedence) characterised by their coercivity of hard-magnetic materials metals or alloys Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12217907 Rare-earth magnet and method of manufacturing the sameDec 01, 21Feb 04, 25501 Toyota Jidosha Kabushiki Kaisha; Nichia Corporation;
12205762 Feedstock and heterogeneous structure for tough rare earth permanent magnets and production thereforOct 15, 18Jan 21, 25Iowa State University Research Foundation, Inc.
12191059 Rare earth magnet and production method thereofNov 14, 22Jan 07, 25501 Toyota Jidosha Kabushiki Kaisha; Nichia Corporation;
12148554 Bonded magnet and method of preparing the sameSep 27, 19Nov 19, 24Nichia Corporation
12142403 Anisotropic bonded magnet and preparation method thereofMay 26, 21Nov 12, 24GRIREM HI-TECH CO., LTD.; GRIREM ADVANCED MATERIALS CO., LTD; Grirem (Rongcheng) Co., Ltd.;
12121963 Metastable single-crystal rare earth magnet fine powder and method for producing sameMar 13, 20Oct 22, 24Japan as represented by Director General of National Institute of Advanced Industrial Science and Technology Ministry of Economy Trade and Industry
12080455 Sm—Fe—N-based magnetic material and manufacturing method thereofSep 15, 21Sep 03, 24501 Toyota Jidosha Kabushiki Kaisha
12027294 Method of producing SmFeN-based rare earth magnetSep 27, 22Jul 02, 24Nichia Corporation; 501 Toyota Jidosha Kabushiki Kaisha;
12027306 Method of producing SmFeN-based rare earth magnetJun 10, 22Jul 02, 24Nichia Corporation; 501 Toyota Jidosha Kabushiki Kaisha;
11990259 Rare earth-iron-nitrogen-based magnetic powder, compound for bonded magnet, bonded magnet, and method for producing rare earth-iron-nitrogen-based magnetic powderMar 31, 21May 21, 24Japan as Represented by President of Tohoku University; Sumitomo Metal Mining Co. Ltd.;
11990260 Rare earth magnet and production method thereofNov 01, 22May 21, 24501 Toyota Jidosha Kabushiki Kaisha; Nichia Corporation;
11981983 Composite rare earth anisotropic bonded magnet and a preparation method thereofNov 05, 20May 14, 24GRIREM ADVANCED MATERIALS CO., LTD; GRIREM HI-TECH CO., LTD.;
11948733 Processing of anisotropic permanent magnet without magnetic fieldJan 17, 20Apr 02, 24Ford Global Technologies LLC
11935676 Sm—Fe—N-based magnetic material and manufacturing method thereofSep 21, 21Mar 19, 24501 Toyota Jidosha Kabushiki Kaisha
11865623 Magnetic powder and method of preparing magnetic powderAug 06, 19Jan 09, 24LG Chem, Ltd
11862372 Composition for bonded magnets and method of manufacturing the sameJan 28, 22Jan 02, 24Nichia Corporation
11862370 High-resistivity sintered samarium-cobalt magnet and preparation method thereofApr 19, 22Jan 02, 24China Jiliang University
11837393 Iron-based nanoparticles and grainsSep 30, 21Dec 05, 23Regents of the University of Minnesota
11798739 Samarium-iron-nitrogen based magnet powder and method of manufacturing same, and samarium-iron-nitrogen based magnet and method of manufacturing sameMar 27, 19Oct 24, 23TDK Corporation
11742121 Sm—Fe—N magnet material and Sm—Fe—N bonded magnetFeb 26, 19Aug 29, 23Daido Steel Co. LTD

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0118,466 RARE-EARTH BONDED MAGNET COMPOUND AND METHOD FOR PRODUCING RARE-EARTH BONDED MAGNET USING SAMESep 28, 24Apr 10, 25Not available
2025/0095,914 FEEDSTOCK AND HETEROGENEOUS STRUCTURES FOR TOUGH RARE EARTH PERMANENT MAGNETS AND PRODUCTION PROCESS THEREFORDec 04, 24Mar 20, 25Not available
2025/0037,910 BONDED MAGNET AND METHOD OF PREPARING THE SAMEOct 15, 24Jan 30, 25Nichia Corporation
2025/0014,791 METHOD OF PRODUCING MAGNETIC POWDER, MAGNETIC MATERIAL FOR MAGNETIC FIELD AMPLIFICATION, AND MAGNETIC MATERIAL FOR HYPER-HIGH FREQUENCY ABSORPTIONNov 09, 22Jan 09, 25Nichia Corporation
2025/0001,498 PREPARATION METHOD OF RARE EARTH PERMANENT MAGNETIC MATERIALMar 13, 23Jan 02, 25Not available
2024/0387,082 SMFEN-BASED ANISOTROPIC MAGNETIC POWDER AND BONDED MAGNET, AND METOHD OF PRODUCING SAID POWDER AND MAGNETSep 12, 22Nov 21, 24Nichia Corporation
2024/0371,551 SM-FE-N-BASED MAGNETIC POWDER AND METHOD FOR MANUFACTURING SAMEOct 04, 22Nov 07, 24Not available
2024/0355,516 SM-FE-N-BASED MAGNETIC MATERIAL AND PRODUCTION METHOD THEREOFApr 10, 24Oct 24, 24c/o TOYOTA JIDOSHA KABUSHIKI KAISHA
2024/0312,704 METHOD OF PRODUCING SmFeN-BASED RARE EARTH MAGNETMar 11, 24Sep 19, 24Not available
2024/0274,335 SmFeN-BASED ANISOTROPIC MAGNETIC POWDER AND BONDED MAGNET, AND PRODUCTION METHODS THEREOFJun 02, 22Aug 15, 24Nichia Corporation
2024/0266,095 RARE-EARTH MAGNET MATERIAL AND MAGNETMar 05, 24Aug 08, 24Not available
2024/0249,877 PROCESSING OF ANISOTROPIC PERMANENT MAGNET WITHOUT MAGNETIC FIELDFeb 29, 24Jul 25, 24Not available
2024/0212,899 ANISOTROPIC SAMARIUM-IRON-NITROGEN MAGNETIC ALLOY POWDER AND PREPARATION METHOD THEREFOROct 13, 23Jun 27, 24GRIREM HI-TECH CO., LTD.; GRIREM ADVANCED MATERIALS CO., LTD;
2024/0186,037 MAGNETIC MATERIAL FOR HIGH FREQUENCY USE, AND METHOD FOR PRODUCING SAMEMar 22, 22Jun 06, 24National Institute of Advanced Industrial Science and Technology
2024/0177,897 MAGNETIC POWDER, COMPOUND, MOLDED BODY, BONDED MAGNET, AND POWDER MAGNETIC COREApr 15, 22May 30, 24Not available
2024/0161,975 SmFeN BASED RARE EARTH MAGNET AND PRODUCTION METHOD THEREOFNov 10, 23May 16, 24Nichia Corporation; c/o TOYOTA JIDOSHA KABUSHIKI KAISHA;
2024/0112,838 METHOD OF PRODUCING PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDERSep 29, 23Apr 04, 24Nichia Corporation
2024/0112,857 METHOD OF PREPARING ANISOTROPIC MAGNETIC POWDER COMPRESSION MOLDED PRODUCT AND BONDED MAGNETSep 29, 23Apr 04, 24Nichia Corporation
2024/0062,936 METHOD OF PRODUCING RARE EARTH MAGNETIC POWDER AND RARE EARTH MAGNETIC POWDERAug 11, 23Feb 22, 24Nichia Corporation; c/o TOYOTA JIDOSHA KABUSHIKI KAISHA;
2024/0055,165 IRON-BASED NANOPARTICLES AND GRAINSOct 26, 23Feb 15, 24Not available

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