Base member, spindle motor, and hard disk drive device
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United States of America Patent
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Jun 20, 2023
Grant Date -
N/A
app pub date -
Aug 16, 2021
filing date -
Aug 27, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A base member serves as a part of a housing of a hard disk drive device. The base member includes a base body being a cast product, a first machined surface obtained by machining a portion formed with a convex portion of the base body, and a coating film covering a surface of the base body. The base body includes a coated surface obtained by covering the first machined surface with the coating film, and a second machined portion obtained by machining a part of the base body other than the first machined surface.
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