Bond magnet and method for manufacturing the same
US10232538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2016 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/113
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a bond magnet includes providing a bond magnet composition including a magnetic material and a resin, extruding the bond magnet composition in one direction to produce a molded body while orienting the magnetic material in the one direction, magnetizing the molded body in the one direction using an axial magnetization to produce a magnetized molded body, and laminating the magnetized molded body to produce a laminated molded body including first magnetized molded layers and second magnetized molded layers. The first magnetized molded layers and the second magnetized molded layers are alternately laminated. A first magnetization direction of each of the first magnetized molded layers is opposite to a second magnetization direction of each of the second magnetized molded layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.