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. 28, 2008
Filed:
Apr. 17, 2006
Takehiko Hamaguchi, Fuchu, JP;
Atsushi Nakamura, Kodaira, JP;
Yasutaka Nishida, Kodaira, JP;
Hisashi Takano, Kodaira, JP;
Yohji Maruyama, Iruma, JP;
Hiroshi Ide, Kodaira, JP;
Hideki Sawaguchi, Kokubunji, JP;
Futoshi Tomiyama, Hachioji, JP;
Takehiko Hamaguchi, Fuchu, JP;
Atsushi Nakamura, Kodaira, JP;
Yasutaka Nishida, Kodaira, JP;
Hisashi Takano, Kodaira, JP;
Yohji Maruyama, Iruma, JP;
Hiroshi Ide, Kodaira, JP;
Hideki Sawaguchi, Kokubunji, JP;
Futoshi Tomiyama, Hachioji, JP;
Hitachi Global Storage Technologies Japan Ltd., Odawara-shi, JP;
Abstract
In the present invention, by making the width of the write element larger than the track pitch and securing a write magnetic field strong enough to reverse the magnetization of the magnetic layer, and further by writing while shifting a write head comprising the write element, a magnetic disk drive, of which the track width is narrower than the write element width, and the storage capacity is large, is realized.