Patent application number | Description | Published |
20100043206 | Method of manufacturing rotor magnet for micro rotary electric machine - A method of manufacturing a rotor magnet for a micro rotary electric machine is provided which includes steps of: a process in which a plurality of thick films, each of which is made of nanocomposite texture composed of αFe and R-TM-B where R is either 10 to 20 atomic % Nd or 10 to 20 atomic % Pr, B is 5 to 20 atomic % and TM is either Fe or partly Co-substituted Fe with 0 to atomic %, are formed into a laminated magnet including isotropic nano-crystalline texture which contains αFe and R | 02-25-2010 |
20100219921 | RARE-EARTH IRON-BASED MAGNET WITH SELF-RECOVERABILITY - A rare-earth iron-based magnet with self-recoverability is provided and includes a plurality of segments, wherein the segments each include a matrix having a microstructure in which rare-earth iron-based aligned magnetic powders of at least one kind are solidified by a cross-linking reaction phase and also in which the cross-liking reaction phase and a viscous deformation phase resulting from on a viscosity flow are chemically bound to each other between the magnetic powders, and wherein while the inner and outer circumferential surfaces of the segments are constrained, the fracture surfaces of the segments, and also the segments on a needed-basis, are mutually aggregated and rigidified together by taking advantage of self-recovery function based on viscous deformation caused by heat and external force and also on cross-linking reaction. | 09-02-2010 |
20110074531 | ANISOTROPIC RARE EARTH-IRON BASED RESIN BONDED MAGNET - Anisotropic rare earth-iron based resin bonded magnet comprises: [1] a continuous phase including: (1) a spherical Sm | 03-31-2011 |
20110121675 | METHOD OF RARE EARTH-IRON BASED ANNULAR MAGNET AND MOTOR FABRICATED THEREBY - Improvement of torque densities, miniaturization and weight saving for outer rotor type motors or permanent-magnet-field-type DC motors can be efficiently achieved by high-energy densification of a magnet. However, torque pulsation or armature reaction gives negative influences thereto. Further, in application of a slotless (coreless) structure eliminating the torque pulsation or the armature reaction, the magnetic resistance of motor magnetic circuits will be enhanced. For solving the above problems, there is provided an annular magnet that is opened in a reverse direction relative to the opening direction of a U-shaped segment fabricated in constantly-directed magnetic fields, the annular magnet having an anisotropic distribution where angles relative to inner peripheral tangent lines can be continuously changed in the range of approximately 0 to 90 degrees, and having energy density (BH) | 05-26-2011 |
20110266894 | MANUFACTURING METHOD OF LAMINATED MAGNET FILM WITH SELF-BONDING LAYER - There is provided the manufacturing method of a laminated magnet film, including the steps of: a first step of preparing a magnet film, 40 μm to 300 μm in thickness, provided with a nanocrystalline structure magnetically isotropic; a second step of applying a self-bonding resin composition with film formability on the magnet film preparing a self-bonding magnet film composed of the magnet film and a self-bonding layer; a third step of mechanically processing the self-bonding magnet film being solid or hollow; a fourth step of preparing the laminated magnet film by laminating the self-bonding magnet films; a fifth step of melting the self-bonding layer of the laminated magnet film and then cooling and solidifying the self-bonding layer to integrally rigidify the laminated magnet film; and a sixth step of magnetizing the rigidified laminated magnet film. | 11-03-2011 |
20130088114 | INNER ROTOR-TYPE PERMANENT MAGNET MOTOR - A motor includes poles P having a remanence Mr of 0.9 T or more, a coercivity HcJ of 0.80 MA/m or more, and a maximum energy product (BH) | 04-11-2013 |
20140010955 | METHOD OF PRODUCING ALPHA-FE/R2TM14B-TYPE NANOCOMPOSITE MAGNET - There is provided a method of producing an α-Fe/R | 01-09-2014 |
20160072371 | INNER ROTOR-TYPE PERMANENT MAGNET MOTOR WITH ANNULAR MAGNETIC POLES - A motor includes poles P having a remanence Mr of 0.9 T or more, a coercivity HcJ of 0.80 MA/m or more, and a maximum energy product (BH) | 03-10-2016 |