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. 18, 2003
Filed:
Sep. 24, 1999
Hideyuki Akimoto, Kawasaki, JP;
Yuki Yoshida, Kawasaki, JP;
Kenji Sato, Kawasaki, JP;
Iwao Okamoto, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
There is provided a magnetic storage medium capable of recording information at high recording density and also regenerating the information with a high quality of signal (high S/N ), and in addition contributing to the elongation of a life span of the recorded information. The magnetic storage medium comprises a non-magnetic substrate, a plurality of magnetic recording layers of ferromagnetism formed on the non-magnetic substrate, and a dividing layer of antiferromagnetism for dividing said plurality of magnetic recording layers from one another through intervening between the magnetic recording layer-to-layer.