H01F 1/08

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


Subclass 1/08: 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 in the form of particles, e.g. powder (H01F 1/047 takes precedence) pressed, sintered, or bound together

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12246475 Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the sameOct 13, 23Mar 11, 25Toda Kogyo Corp.
12224092 Compression molded core, method for manufacturing the compression molded core, inductor including the compression molded core, and electric/electronic equipment mounted with the inductorApr 09, 21Feb 11, 25Alps Alpine Co., Ltd.
12205762 Feedstock and heterogeneous structure for tough rare earth permanent magnets and production thereforOct 15, 18Jan 21, 25Iowa State University Research Foundation, Inc.
12146210 FeNi ordered alloy, method for manufacturing FeNi ordered alloy, and magnetic material including FeNi ordered alloyMay 21, 21Nov 19, 24DENSO Corporation
12087482 Flexible permanent magnetic material, preparation method and application thereof in magnetic biological effect productsAug 30, 23Sep 10, 24Beijing Peking University WBL Corporation Ltd.
12051530 Ferrite sintered body and wire-wound coil componentSep 27, 21Jul 30, 24Murata Manufacturing Co., Ltd.
12044676 3D cell viability assayApr 09, 19Jul 23, 24Greiner Bio-One North America, Inc.
12046398 Method for producing a permanent or soft magnetDec 12, 19Jul 23, 24L'Institut National des Sciences Appliquées (INSA); Universite Paul Sabatier Toulouse III; Centre National De La Recherche Scientifique (CNRS);
12040113 Ferrite sintered body and wire-wound coil componentSep 27, 21Jul 16, 24Murata Manufacturing Co., Ltd.
11996232 Applied magnetic field synthesis and processing of iron nitride magnetic materialsApr 30, 21May 28, 24Regents of the University of Minnesota
11984257 Method for manufacturing field magnetJun 06, 23May 14, 24AICHI STEEL CORPORATION
11909270 Electric motor with permanent magnets abutted by tabs in lamination cavitiesJun 01, 21Feb 20, 24Atieva, Inc.
11820055 Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the sameApr 01, 14Nov 21, 23Toda Kogyo Corp.
11791075 Iron-based superconducting permanent magnet and method of manufactureAug 15, 19Oct 17, 23The Florida State University Research Foundation Inc.; Japan Science and Technology Agency;
11776720 Calcined ferrite, and sintered ferrite magnet and its production methodApr 20, 22Oct 03, 23PROTERIAL, LTD.
11746830 Encoder wheel for wheel hub assemblyJul 15, 22Sep 05, 23Aktiebolaget SKF
11710598 Method for manufacturing field magnetMay 29, 20Jul 25, 23AICHI STEEL CORPORATION
11688534 Process for producing R-T-B-based rare earth magnet particles, R-T-B-based rare earth magnet particles, and bonded magnetJan 29, 16Jun 27, 23Toda Kogyo Corp.
11670332 Magnetic tape, magnetic tape cartridge, and magnetic tape apparatusSep 16, 21Jun 06, 23FUJIFILM Corporation
11588359 Rotating electric machineMar 09, 21Feb 21, 23KABUSHIKI KAISHA TOSHIBA

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0118,467 DUST CORE AND METHOD FOR MANUFACTURING DUST COREDec 12, 22Apr 10, 25Panasonic Intellectual Property Management Co., Ltd.
2025/0095,914 FEEDSTOCK AND HETEROGENEOUS STRUCTURES FOR TOUGH RARE EARTH PERMANENT MAGNETS AND PRODUCTION PROCESS THEREFORDec 04, 24Mar 20, 25Not available
2025/0024,565 HONEYCOMB STRUCTURE AND METHOD OF PRODUCING HONEYCOMB STRUCTUREJun 06, 24Jan 16, 25NGK INSULATORS, LTD.
2024/0412,904 METHOD FOR MANUFACTURING Mn-Bi BASED SINTERED MAGNET, AND Mn-Bi BASED SINTERED MAGNET MANUFACTURED THEREFROMJul 15, 22Dec 12, 24Not available
2024/0304,375 INDUCTOR COMPONENTMar 05, 24Sep 12, 24Murata Manufacturing Co., Ltd.
2024/0290,539 APPLIED MAGNETIC FIELD SYNTHESIS AND PROCESSING OF IRON NITRIDE MAGNETIC MATERIALSApr 22, 24Aug 29, 24Not available
2024/0194,402 DEVICE AND METHOD FOR MOLDING MAGNETIC POWDERMay 08, 23Jun 13, 24Not available
2024/0096,550 High-compactness bonded rare earth permanent magnet and preparation method thereofFeb 22, 23Mar 21, 24Not available
2023/0343,497 METAL MAGNETIC POWDER, COMPOSITE MAGNETIC BODY, AND ELECTRONIC COMPONENTApr 18, 23Oct 26, 23501 TDK Corporation
2023/0146,566 Heat Treatable Magnets Having Improved Alignment Through Application Of External Magnetic Field During Binder-Assisted MoldingSep 26, 22May 11, 23Not available
2022/0246,336 MANUFACTURING METHOD FOR RARE EARTH MAGNETDec 28, 21Aug 04, 22c/o TOYOTA JIDOSHA KABUSHIKI KAISHA
2019/0392,970 Methods of Making Physical Unclonable Functions Having Magnetic ParticlesAug 27, 19Dec 26, 19Not available
2019/0318,855 SINTERABLE MAGNETIC POWDER COMPOSITION AND THREE-DIMENSIONAL OBJECT MANUFACTURED BY SINTERING SUCH A COMPOSITIONNov 20, 17Oct 17, 19Arkema France
2019/0255,618 METHOD OF PROCESSING RARE EARTH MAGNETFeb 19, 19Aug 22, 19TDK Corporation
2019/0221,339 METHOD FOR MANUFACTURING SINTERED BODY FOR FORMING SINTERED MAGNET, AND METHOD FOR MANUFACTURING PERMANENT MAGNET USING SINTERED BODY FOR FORMING SINTERED MAGNETSep 22, 17Jul 18, 19Not available
2018/0130,581 METHOD FOR PRODUCING SINTERED BODY THAT FORMS RARE-EARTH PERMANENT MAGNET AND HAS NON-PARALLEL EASY MAGNETIZATION AXIS ORIENTATIONMar 24, 16May 10, 18Not available
2016/0307,677 Nanostructured Mn-Al Permanent Magnets And Method of Producing SameMar 20, 12Oct 20, 16THE TRUSTEES OF DARTMOUTH COLLEGE
2016/0042,848 R-T-B BASED SINTERED MAGNETMar 27, 14Feb 11, 16HITACHI METALS, LTD.
2015/0364,251 SINTERED MAGNET PRODUCTION METHODFeb 03, 14Dec 17, 15DAIDO STEEL CO., LTD., INTERMETALLICS CO., LTD.,
2015/0302,960 MANUFACTURING METHOD OF A POWDER FOR COMPACTING RARE EARTH MAGNET AND THE RARE EARTH MAGNET OMITTING JET MILLING PROCESSNov 08, 13Oct 22, 15XIAMEN TUNGSTEN CO., LTD.

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Patents Issued To Date - By Filing Year

Average Time to Issuance