Log in
Enquire now
‌

US Patent 7392578 Thin film magnetic head and manufacturing method thereof

OverviewStructured DataIssuesContributors

Contents

Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7392578
Date of Patent
July 1, 2008
Patent Application Number
11748919
Date Filed
May 15, 2007
Patent Primary Examiner
‌
William J Klimowicz
Patent abstract

A method for manufacturing a thin film magnetic head with a write element, the write element having a first yoke portion and a second yoke portion connected to each other by a back gap portion, a first pole portion and a second pole portion disposed in the medium-facing surface side of the first yoke portion and the second yoke portion respectively, a gap film disposed between the first pole portion and the second pole portion, and a coil surrounding in a spiral form the back gap portion, and the manufacturing method including the steps of forming the coil above the first yoke portion, forming a part which the first pole portion is composed of so that the part extends to cover the upper surface of the coil, forming the gap film on the first pole portion, forming the second yoke portion, which includes the second pole portion, above the gap film, and trimming the first pole portion so as to have a width fitting the second pole portion.

Timeline

No Timeline data yet.

Further Resources

Title
Author
Link
Type
Date
No Further Resources data yet.

References

Find more entities like US Patent 7392578 Thin film magnetic head and manufacturing method thereof

Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more.
Open Query Tool
Access by API
Golden Query Tool
Golden logo

Company

  • Home
  • Press & Media
  • Blog
  • Careers
  • WE'RE HIRING

Products

  • Knowledge Graph
  • Query Tool
  • Data Requests
  • Knowledge Storage
  • API
  • Pricing
  • Enterprise
  • ChatGPT Plugin

Legal

  • Terms of Service
  • Enterprise Terms of Service
  • Privacy Policy

Help

  • Help center
  • API Documentation
  • Contact Us