Magnetic recording medium fabrication method and apparatus

US9196285B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9196285-B2
Application numberUS-201314031184-A
CountryUS
Kind codeB2
Filing dateSep 19, 2013
Priority dateOct 4, 2012
Publication dateNov 24, 2015
Grant dateNov 24, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The stacked body is enclosed in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus, and the transfer container unit is transported to a vapor-phase lubrication deposition apparatus. The stacked body is removed from the transfer container unit without exposing the stacked body to the atmosphere, in order to form the lubricant layer on the stacked body within the vapor-phase lubrication deposition apparatus.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of fabricating a magnetic recording medium by sequentially forming a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body, comprising: enclosing the stacked body in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus; transporting the transfer container unit that is detachably connected to the deposition apparatus by disconnecting the transfer container unit from the deposition apparatus, transporting the transfer container unit disconnected from the deposition apparatus to a vapor-phase lubrication deposition apparatus that is provided separately and independently of the deposition apparatus, and detachably connecting the transfer container unit to the vapor-phase lubrication deposition apparatus; and removing the stacked body enclosed within the transfer container unit from the transfer container unit without exposing the stacked body to the atmosphere, and forming the lubricant layer on the stacked body within the vapor-phase lubrication deposition apparatus by vapor-phase lubrication, wherein the transfer container unit includes a transfer container configured to enclose the stacked body, an auxiliary chamber configured to detachably connect to the deposition apparatus and the vapor-phase lubrication deposition apparatus, and a gate valve configured to connect the transfer container and the auxiliary chamber. 2. The method of fabricating the magnetic recording medium as claimed in claim 1 , wherein an inside of the transfer container unit is vacuum. 3. The method of fabricating the magnetic recording medium as claimed in claim 1 , wherein an inside of the transfer container unit is an inert gas atmosphere. 4. The method of fabricating the magnetic recording medium as claimed in claim 3 , wherein an inert gas pressure inside the transfer container unit is in a range of 10 Pa to 200 Pa. 5. The method of fabricating the magnetic recording medium as claimed in claim 1 , wherein the transporting transports the transfer container unit disconnected from the deposition apparatus to the vapor-phase lubrication deposition apparatus by a transport apparatus that is provided between the deposition apparatus and the vapor-phase lubrication deposition apparatus.

Assignees

Inventors

Classifications

  • G11B5/8408Primary

    protecting the magnetic layer · CPC title

  • G11B5/85Primary

    Coating a support with a magnetic layer by vapour deposition · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9196285B2 cover?
A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The stacked body is enclosed in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus, and the transfer container unit is transported to…
Who is the assignee on this patent?
Showa Denko Kk
What technology area does this patent fall under?
Primary CPC classification G11B5/8408. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Nov 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).