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Patent Searching and Data


Title:
METHOD FOR PRODUCING ALUMINUM-MADE PLATTER
Document Type and Number:
WIPO Patent Application WO/2019/130516
Kind Code:
A1
Abstract:
In one embodiment, a method for producing an aluminum-made platter is provided, whereby it becomes possible to improve the smoothness of the surface of a substrate on which a magnetic layer is not formed yet and to produce a hard disk substrate capable of being adapted to media communication with high yield. In one embodiment, the present disclosure relates to a method for producing an aluminum-made platter, which comprises the following steps 1 and 2: step 1 of bringing a composition containing a compound (component A) having at least one structure represented by formula (I) and having a molecular weight of 50 to 100,000 inclusive into contact with a substrate surface of a Ni-P-plated aluminum alloy substrate; and step 2 of forming a magnetic layer on the substrate produced in step 1.

Inventors:
ANDO Keisuke
Application Number:
JP2017/047086
Publication Date:
July 04, 2019
Filing Date:
December 27, 2017
Export Citation:
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Assignee:
KAO CORPORATION (14-10, Nihonbashi Kayabacho 1-chome Chuo-k, Tokyo 10, 〒1038210, JP)
International Classes:
G11B5/84; G11B5/73
Foreign References:
JP2017222840A2017-12-21
JP2015170373A2015-09-28
JP2017199448A2017-11-02
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (26th Floor, OAP TOWER 8-30, Tenmabashi 1-chome, Kita-ku, Osaka-sh, Osaka 26, 〒5306026, JP)
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