BASE PLATE, SPINDLE MOTOR, DISK DRIVE DEVICE, AND METHOD FOR MANUFACTURING BASE PLATE
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United States of America
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Issued Date -
Nov 21, 2024
app pub date -
Sep 14, 2022
filing date -
Sep 14, 2022
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Abstract
This base plate constitutes a part of a housing of a disk drive device, and is formed from a metal plate and a die-cast part. The metal plate includes a board-shaped bottom plate portion that spreads out perpendicular to an up-down extending axis of rotation of a disk. The die-cast part covers at least a part of the bottom plate portion. Metal which constitutes the bottom plate portion is higher in rigidity than metal which constitutes the die-cast part.
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