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Patent Searching and Data


Title:
SUBSTRATE FOR MAGNETIC DISKS, AND MAGNETIC DISK
Document Type and Number:
WIPO Patent Application WO/2020/032146
Kind Code:
A1
Abstract:
This substrate for magnetic disks, which is in the form of a disk, has a diameter D of 85 mm or more; the plate thickness T of this substrate is 0.6 mm or less; and this substrate uses a material that has a Young's modulus E of 90 GPa or more.

Inventors:
EDA SHINJI (VN)
Application Number:
PCT/JP2019/031269
Publication Date:
February 13, 2020
Filing Date:
August 07, 2019
Export Citation:
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Assignee:
HOYA CORP (JP)
International Classes:
G11B5/73; B24B1/00; G11B5/84
Domestic Patent References:
WO2017119147A12017-07-13
WO2012160897A12012-11-29
WO2017204143A12017-11-30
Foreign References:
JP2015069670A2015-04-13
JP2007197235A2007-08-09
JP2019128966A2019-08-01
Attorney, Agent or Firm:
GLOBAL IP TOKYO (JP)
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