Magnetic disk device and reference pattern writing method of the same
US-2024079028-A1 · Mar 7, 2024 · US
Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method
US8995085B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8995085-B2 |
| Application number | US-201414184406-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2014 |
| Priority date | Nov 28, 2008 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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.
An example magnetic recording apparatus includes a magnetic recording medium and a magnetic recording head. The magnetic recording head includes a first magnetic pole to apply a recording magnetic field to a magnetic recording medium, a spin torque oscillator provided parallel to the first magnetic pole, a first coil which surrounds the first magnetic pole, to magnetize the first magnetic pole, and a second coil to pass a current independently of the first coil and magnetize the first magnetic pole. A signal processor writes and reads a signal on the magnetic recording medium by using the magnetic recording head.
First claim
Opening claim text (preview).
What is claimed is: 1. A magnetic recording apparatus, comprising: a magnetic recording medium; a magnetic recording head comprising: a first magnetic pole to apply a recording magnetic field to the magnetic recording medium, the first magnetic pole having a recording medium facing surface; a spin torque oscillator provided parallel to the first magnetic pole; a first coil, whose center axis is parallel to its length and perpendicular to the recording medium facing surface…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
- G11B5/09Primary
Physics · mapped topic
- G11B5/1278Primary
Physics · mapped topic
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 US8995085B2 cover?
- An example magnetic recording apparatus includes a magnetic recording medium and a magnetic recording head. The magnetic recording head includes a first magnetic pole to apply a recording magnetic field to a magnetic recording medium, a spin torque oscillator provided parallel to the first magnetic pole, a first coil which surrounds the first magnetic pole, to magnetize the first magnetic pole,…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification G11B5/09. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 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).