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US 10,916,269 B2Granted
Magnet for motor of magnetic storage device
AssigneeWestern Digital Technologies, Inc.
InventorsToshio Takahashi, Kazushi Tsuwako, Masamichi Sakauchi, Takako Hayakawa, Kouki Uefune
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Abstract
Disclosed here is a magnet for use in a motor. The magnet comprises a magnet body. The magnet body comprises a plurality of coated magnetic granules. Each coated magnetic granule of the plurality of coated magnetic granules comprises a magnetic granule and a metallic layer coating the magnetic granule.
Claims20
A hard disk drive, comprising:
- a spindle;
- a carriage comprising carriage arms;
- and
- a motor coupled to and operable to actuate one of the spindle or the carriage, wherein the motor comprises a magnet, comprising a magnet body that comprises a plurality of coated magnetic granules, wherein each coated magnetic granule of the plurality of coated magnetic granules comprises a magnetic granule and a metallic layer coating the magnetic granule.
1 more element
A method of making a magnetic storage device, the method comprising:
- coating each magnetic granule of a magnet powder with a metallic coating to form a plurality of coated magnetic granules;
- forming the plurality of coated magnetic granules into a magnet body;
- and
- operably coupling a motor to an actuatable component of the magnetic storage device, wherein the motor comprises the magnet body and is operable to actuate the actuatable component.
1 more element
A magnetic storage device, comprising:
- an actuatable component;
- and
- a motor coupled to and operable to actuate the actuatable component, wherein:
- the motor comprises a magnet comprising a magnet body;
- the magnet body comprises a plurality of coated magnetic granules;
- and
- each coated magnetic granule of the plurality of coated magnetic granules comprises a magnetic granule and a metallic layer coating the magnetic granule.
4 more elements
Dependencies are inferred from the claim text.