Substrates for thin-film magnetic heads, magnetic head sliders, and hard disk drive devices
US-2015380025-A1 · Dec 31, 2015 · US
Magnetic head and head gimbal assembly maintaining stable flying height in a disk drive
USRE46121E · US · E1
| Field | Value |
|---|---|
| Publication number | US-RE46121-E |
| Application number | US-201414484126-A |
| Country | US |
| Kind code | E1 |
| Filing date | Sep 11, 2014 |
| Priority date | Jul 25, 2012 |
| Publication date | Aug 23, 2016 |
| Grant date | Aug 23, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
According to one embodiment, a bearing surface of the head slider includes a leading step at the inflow end portion, a skirt portion at the inflow end portion, a leading pad on the leading step and including a junction extending to the skirt portion, first groove surfaces individually on the opposite sides of the junction and being continuous with a downstream central portion of the skirt portion, second groove surfaces on an upstream side of the first groove surfaces and formed deeper than the first groove surfaces, and negative-pressure grooves individually on the transversely opposite sides of the first groove surfaces between the second groove surfaces and the skirt portion and formed deeper than the second groove surfaces.
First claim
Opening claim text (preview).
What is claimed is: 1. A magnetic head comprising: a head slider comprising a bearing surface opposed to a surface of a recording medium, and an inflow end portion and an outflow end portion for an airflow produced between the recording medium surface and the bearing surface; and a recording element and a reproduction element in the outflow end portion of the head slider, the bearing surface comprising a leading step at the inflow end portion, a skirt portion located at the in…
Assignees
Inventors
Classifications
- G11B5/6005Primary
Physics · mapped topic
- G11B5/6082Primary
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent USRE46121E cover?
- According to one embodiment, a bearing surface of the head slider includes a leading step at the inflow end portion, a skirt portion at the inflow end portion, a leading pad on the leading step and including a junction extending to the skirt portion, first groove surfaces individually on the opposite sides of the junction and being continuous with a downstream central portion of the skirt porti…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification G11B5/6005. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (E1). 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).