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:
Dec. 23, 2008
Filed:
May. 03, 2006
Applicants:
Syuji Nishida, Kanagawa, JP;
Ikuya Tagawa, Kanagawa, JP;
Yasutaka Nishida, Tokyo, JP;
Satoshi Tabata, Kanagawa, JP;
Inventors:
Syuji Nishida, Kanagawa, JP;
Ikuya Tagawa, Kanagawa, JP;
Yasutaka Nishida, Tokyo, JP;
Satoshi Tabata, Kanagawa, JP;
Assignee:
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
Embodiments of the invention improve efficiency in alternating-current demagnetization of a magnetic recording medium. In specific embodiments, magnet fields in a direction slanting to an easy direction of magnetization of recording layer magnetization of a medium in rotation are applied.
Nishida, Syuji. (2008). Method of demagnetizing magnetic recording medium and apparatus for carrying out same (U.S. Patent No. 7468852). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7468852
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile