H01F 1/058

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


Subclass 1/058: 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 IVa elements, e.g. Gd2Fe14C

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12205762 Feedstock and heterogeneous structure for tough rare earth permanent magnets and production thereforOct 15, 18Jan 21, 25Iowa State University Research Foundation, Inc.
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.;
11901104 Composite magnetic material and inductor using the sameFeb 21, 23Feb 13, 24Murata Manufacturing Co., Ltd.
11728074 Magnetocaloric alloys useful for magnetic refrigeration applicationsFeb 20, 19Aug 15, 23General Engineering & Research, L.L.C.; The Regents of the University of California;
11664140 Rare earth magnet and manufacturing method thereforFeb 23, 21May 30, 23501 Toyota Jidosha Kabushiki Kaisha
11631513 Composite magnetic material and inductor using the sameMar 27, 20Apr 18, 23Murata Manufacturing Co., Ltd.
11328846 Oxide superconductor and method for manufacturing the sameApr 29, 20May 10, 22KABUSHIKI KAISHA TOSHIBA
11213890 Sub-micron particles of rare earth and transition metals and alloys, including rare earth magnet materialsAug 16, 17Jan 04, 22Urban Mining Technology Company, Inc.
11205532 Permanent magnet and permanent magnet powderNov 30, 17Dec 21, 21501 TDK Corporation
11189405 Composite magnet with magnetically hard and soft phasesFeb 07, 19Nov 30, 21Ford Global Technologies LLC
11062827 Sintered magnet composition without heavy rare earth element and a method of making the sintered magnetJan 09, 17Jul 13, 21YANTAI SHOUGANG MAGNETIC MATERIALS INC.
11024448 Alloy for R-T-B-based rare earth sintered magnet, process of producing alloy for R-T-B-based rare earth sintered magnet, alloy material for R-T-B-based rare earth sintered magnet, R-T-B-based rare earth sintered magnet, process of producing R-T-B-based rare earth sintered magnet, and motorJul 25, 16Jun 01, 21501 TDK Corporation
10943717 R-T-B based permanent magnetFeb 23, 17Mar 09, 21501 TDK Corporation
10926333 Caster assemblyAug 16, 17Feb 23, 21Urban Mining Technology Company, Inc.
10886044 Rare earth permanent magnetMar 05, 19Jan 05, 21501 TDK Corporation
10784028 R-T-B based permanent magnetFeb 23, 17Sep 22, 20501 TDK Corporation
10755840 R-T-B based sintered magnetMay 01, 18Aug 25, 20501 TDK Corporation
10692634 Oxide superconductor and method for manufacturing the sameMar 01, 17Jun 23, 20KABUSHIKI KAISHA TOSHIBA
10529474 Rare-earth permanent magnetMar 10, 15Jan 07, 20501 TDK Corporation
10497496 Rare earth-cobalt permanent magnetSep 04, 15Dec 03, 19Nec Tokin Corporation

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0095,914 FEEDSTOCK AND HETEROGENEOUS STRUCTURES FOR TOUGH RARE EARTH PERMANENT MAGNETS AND PRODUCTION PROCESS THEREFORDec 04, 24Mar 20, 25Not available
2023/0005,646 RARE-EARTH SINTERED MAGNETNov 24, 20Jan 05, 23Shin-Etsu Chemical Co., Ltd.
2019/0279,794 RARE EARTH PERMANENT MAGNETMar 05, 19Sep 12, 19501 TDK Corporation
2018/0182,516 RARE EARTH MAGNETDec 19, 17Jun 28, 18c/o TOYOTA JIDOSHA KABUSHIKI KAISHA
2018/0182,515 RARE EARTH MAGNET AND PRODUCTION METHOD THEREOFDec 19, 17Jun 28, 18c/o TOYOTA JIDOSHA KABUSHIKI KAISHA
2018/0061,537 OXIDE SUPERCONDUCTOR AND METHOD FOR MANUFACTURING THE SAMEMar 01, 17Mar 01, 18KABUSHIKI KAISHA TOSHIBA

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Patents Issued To Date - By Filing Year

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