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:
Oct. 13, 2015
Filed:
Jun. 17, 2013
Showa Denko K.k., Minato-ku, Tokyo, JP;
Ryuji Sakaguchi, Chiba, JP;
SHOWA DENKO K.K., Tokyo, JP;
Abstract
An object is to provide a burnishing method in which it is possible to reduce the flying height of a magnetic head by improving the smoothness of the surface of a magnetic disk while suppressing contamination of the magnetic disk due to falling-off or crushing of abrasive grains from a polishing tape. In the burnishing method, an alignment process of adjusting the position in a thickness direction of a magnetic diskof an outer peripheral plateinstalled outside an outer peripheral endof at least one of the magnetic diskand the magnetic diskso as to make the surface of the outer peripheral plateand the surface of the magnetic diskbecome flush with each other is performed between a substrate installation process and a burnishing process.