The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2005
Filed:
Oct. 21, 2002
Timothy John Klemmer, Pittsburgh, PA (US);
Ganping Ju, Wexford, PA (US);
René Johannes Marinus Van DE Veerdonk, Pittsburgh, PA (US);
Todd Dennis Leonhardt, Pittsburgh, PA (US);
David Eugene Laughlin, Pittsburgh, PA (US);
Timothy John Klemmer, Pittsburgh, PA (US);
Ganping Ju, Wexford, PA (US);
René Johannes Marinus van de Veerdonk, Pittsburgh, PA (US);
Todd Dennis Leonhardt, Pittsburgh, PA (US);
David Eugene Laughlin, Pittsburgh, PA (US);
Carnegie Mellon University, Pittsburgh, PA (US);
Abstract
Magnetic films having magnetic regions and non-magnetic regions are disclosed. The film is subjected to ion irradiation in order to produce chemically disordered regions in the film. The irradiated disordered regions may correspond to the non-magnetic regions of the film. Alternatively, the irradiated disordered regions may correspond to the magnetic regions of the film. In one embodiment, portions of a magnetic CrPtfilm are converted to non-magnetic regions by irradiating the regions with boron ions which disorder the CrPtfilm in the treated regions. The film may be patterned into magnetic regions and non-magnetic regions for applications such as magnetic recording media in computer disc drive systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile