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:
Jul. 03, 2012
Filed:
Feb. 13, 2007
Masato Fukushima, Ichihara, JP;
Akira Sakawaki, Ichihara, JP;
Yasumasa Sasaki, Tokyo, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A discrete track-type magnetic recording medium () includes a nonmagnetic substrate (), a magnetic recording track and a servo signal pattern which are provided on at least one side of the nonmagnetic substrate, and a nonmagnetic part () consisting of a nonmagnetic alloy containing Si for physically separating the magnetic recording track and the servo signal pattern. A magnetic recording and reproducing device comprising, in combination, the magnetic recording medium (), a driving part () serving to drive the magnetic recording medium in a direction of recording, a magnetic head () composed of a recording part and a reproducing part, a device () to impart motion to the magnetic head relative to the magnetic recording medium, and a recording and reproducing signal processing device () for entering a signal into the magnetic head and reproducing an output signal from the magnetic head.