Patent classifications
G
PHYSICS
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G11
INFORMATION STORAGE
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G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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23/00
Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus; ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
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G11B23/02
Containers; Storing means; both adapted to cooperate with the recording or reproducing means
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G11B23/03
Containers for flat record carriers
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G11B23/0326
Assembling of containers
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G11B23/0326

BASE MEMBER, AND DISK DRIVE APPARATUS INCLUDING THE SAME
20190139579 · 2019-05-09 ·

A base member is structured to define a portion of a casing in which a gas with a density lower than that of air is to be sealed and to support a motor to be housed in the casing. The base member includes a base body made of a cast material, an information mark, and an insulating coating layer. The information mark includes casting information and is located on a portion of a surface of the base body. The insulating coating layer is defined on the surface of the base body and covers the information mark.