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Title:
ALUMINUM ALLOY DISC BLANK FOR MAGNETIC DISC, AND MAGNETIC DISC
Document Type and Number:
WIPO Patent Application WO/2022/131210
Kind Code:
A1
Abstract:
This aluminum alloy disc blank for a magnetic disc is characterized by being formed from an aluminum alloy containing 3.40-3.90 mass% of Mg, the remainder being Al and unavoidable impurities, and by having a conductivity of at least 36.0% IACS.

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Inventors:
KITAWAKI KOTARO (JP)
KUMAGAI WATARU (JP)
SAKAMOTO RYO (JP)
HATAKEYAMA HIDEYUKI (JP)
Application Number:
PCT/JP2021/045824
Publication Date:
June 23, 2022
Filing Date:
December 13, 2021
Export Citation:
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Assignee:
UACJ CORP (JP)
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
C22C21/06; C22C21/00; C22F1/00; C22F1/047; G11B5/73; G11B5/82; G11B5/84
Domestic Patent References:
WO2017188320A12017-11-02
Foreign References:
JPH10110232A1998-04-28
JPH0883417A1996-03-26
JP2006260745A2006-09-28
JP2008238517A2008-10-09
JP2019056163A2019-04-11
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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