Title:
アルミニウム製プラッタの製造方法
Document Type and Number:
Japanese Patent JP6894535
Kind Code:
B2
Abstract:
In one aspect, the present disclosure provides a method for producing an aluminum platter, which can improve the smoothness of the substrate surface before a magnetic layer is formed thereon and can provide a hard disk substrate that can be processed into a medium with a high yield. In another aspect, the present disclosure relates to a method for producing an aluminum platter, including the following steps 1 and 2: step 1: bringing a composition containing a compound (component A) that has at least one structure represented by the following formula (I) and has a molecular weight between 50 and 100,000 inclusive into contact with a substrate surface of a Ni—P plated aluminum alloy substrate; and step 2: forming a magnetic layer on the substrate obtained in the step 1.
Inventors:
Keisuke Ando
Application Number:
JP2019561503A
Publication Date:
June 30, 2021
Filing Date:
December 27, 2017
Export Citation:
Assignee:
Kao Corporation
International Classes:
G11B5/84; G11B5/73
Domestic Patent References:
| JP2015170373A | ||||
| JP2017222840A | ||||
| JP2017199448A |
Attorney, Agent or Firm:
Patent business corporation Ikeuchi and Partners