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:
Jun. 15, 2004
Filed:
Nov. 26, 1999
Migaku Takahashi, Miyagi-ken, JP;
Akira Kikuchi, Miyagi-ken, JP;
Migaku Takahashi, , JP;
Abstract
A magnetic recording medium having a high normalized coercive force of a ferromagnetic metal layer and excellent S/N ration and adaptable to high density recording. The magnetic recording medium comprises a substrate body and a Co-based ferromagnetic metal layer formed thereon via a metallic underlying layer. The oxygen concentrations in the metallic underlying layer and in the ferromagnetic metal layer are not larger that 100 wt ppm. Magnetic in version is used for the recording. The value of 4ΠMs/H is the saturation magnetization of the ferromagnetic metal layer and H is the anisotropic magnetic field of the individual crystalline particles constituting the ferromagnetic metal layer is 1 or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile