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:
May. 11, 2010
Filed:
Mar. 20, 2006
Applicant:
Koji Ishii, Kawasaki, JP;
Inventor:
Koji Ishii, Kawasaki, JP;
Assignee:
Toshiba Storage Device Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01); G11B 27/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A write head, which is positioned by reading a servo pattern with a read head, writes data on even tracks of a magnetic disc, and then writes data on odd tracks. Then a read head is positioned on a read position and sequentially reads all the written data. As a result, it is decided whether a read error has occurred. Further, positional deviation of the tracks, in which the read error occurs, is measured.
Ishii, Koji. (2010). Method of testing magnetic disc device (U.S. Patent No. 7715139). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7715139
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile