Method for providing a magnetic recording transducer using a chemical buffer
US-9196283-B1 · Nov 24, 2015 · US
Method for manufacturing magnetic recording medium
US2016293199A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016293199-A1 |
| Application number | US-201515034502-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 20, 2015 |
| Priority date | Apr 24, 2014 |
| Publication date | Oct 6, 2016 |
| Grant date | — |
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Abstract
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The purpose of the present invention is to provide a method for manufacturing a magnetic recording medium including a magnetic recording layer having a larger magnetic anisotropic constant Ku. The method according to the present invention includes the steps of: (a) preparing a substrate; (b) heating the substrate to a temperature of 350° C. or higher, and depositing a non-magnetic material containing MgO as a main component to form a base layer; and (c) forming a magnetic recording layer onto the base layer.
First claim
Opening claim text (preview).
1 . A method for manufacturing a magnetic recording medium comprising the steps of: (a) preparing a substrate; (b) heating the substrate to a temperature of 350° C. or higher and depositing a non-magnetic material comprising MgO as a main component, to form a base layer; and (c) forming a magnetic recording layer onto the base layer. 2 . The method for manufacturing a magnetic recording medium according to claim 1 , further comprising the step of: (b′) depositing Cr metal or an alloy having a bcc structure and comprising Cr as a main component, to form a second base layer, prior to the step (b). 3 . The method for manufacturing a magnetic recording medium according to claim 1 , wherein a material for forming an ordered alloy is deposited in the step (c). 4 . The method for manufacturing a magnetic recording medium according to claim 1 , wherein a magnetic material for forming magnetic crystal grains and a non-magnetic material for forming a non-magnetic grain boundary which surrounds the magnetic crystal grains are deposited in the step (c). 5 . The method for manufacturing a magnetic recording medium according to claim 4 , wherein the magnetic material comprises a material for forming an ordered alloy.
Assignees
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Classifications
made of metals other than silver · CPC title
of aluminium, magnesium or beryllium · CPC title
Properties of coatings · CPC title
Multilayers containing at least two functional metal layers · CPC title
Pre-treatment · CPC title
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- What does patent US2016293199A1 cover?
- The purpose of the present invention is to provide a method for manufacturing a magnetic recording medium including a magnetic recording layer having a larger magnetic anisotropic constant Ku. The method according to the present invention includes the steps of: (a) preparing a substrate; (b) heating the substrate to a temperature of 350° C. or higher, and depositing a non-magnetic material cont…
- Who is the assignee on this patent?
- Fuji Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G11B5/8404. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Oct 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).