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:
Mar. 01, 2011
Filed:
Feb. 12, 2009
Hideki Mochizuki, Ashigarakami-gun, JP;
Yoshihiro Sakurai, Ashigarakami-gun, JP;
Toshiaki Suzuki, Ashigarakami-gun, JP;
Hideki Mochizuki, Ashigarakami-gun, JP;
Yoshihiro Sakurai, Ashigarakami-gun, JP;
Toshiaki Suzuki, Ashigarakami-gun, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A write sensitive width is calculated by writing a test data by a write head by moving the write head in a radial direction of a magnetic recording medium at a designated speed K to obliquely cross a designated track or a track adjacent to the designated track, reading the test data recorded in the track obliquely by a read head to obtain a read characteristics profile of a read voltage with respect to the track scanning time and obtaining a moving distance in the radial direction of the head by multiplying the test data scanning time of the read head with the designated moving speed K.