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:
Jun. 06, 2006
Filed:
Jun. 03, 2003
Tetsuya Kanbe, Yokohama, JP;
Akira Ishikawa, Kodaira, JP;
Ichiro Tamai, Yokohama, JP;
Yotsuo Yahisa, Odawara, JP;
Yuzuru Hosoe, Hino, JP;
Kiwamu Tanahashi, Fujisawa, JP;
Yoshibumi Matsuda, Odawara, JP;
Hiroyuki Kataoka, Kanagawa-ken, JP;
Toshinori Ono, Odawara, JP;
Shinji Fukaya, Odawara, JP;
Kazuhiro Ura, Hiratsuka, JP;
Naoto Endo, Odawara, JP;
Tomoo Yamamoto, Nagaoka, JP;
Tetsuya Kanbe, Yokohama, JP;
Akira Ishikawa, Kodaira, JP;
Ichiro Tamai, Yokohama, JP;
Yotsuo Yahisa, Odawara, JP;
Yuzuru Hosoe, Hino, JP;
Kiwamu Tanahashi, Fujisawa, JP;
Yoshibumi Matsuda, Odawara, JP;
Hiroyuki Kataoka, Kanagawa-ken, JP;
Toshinori Ono, Odawara, JP;
Shinji Fukaya, Odawara, JP;
Kazuhiro Ura, Hiratsuka, JP;
Naoto Endo, Odawara, JP;
Tomoo Yamamoto, Nagaoka, JP;
Hitachi Global Storage Technologies Japan, Ltd., Odawara, JP;
Abstract
A magnetic recording system includes an in-plane magnetic recording medium having a magnetic layer fabricated on a single underlayer or on a plurality of underlayers respectively fabricated on a substrate; a driver unit for driving the in-plane magnetic recording medium in a write direction; a magnetic head having a read unit and a write unit; a unit for moving the magnetic head relative to the in-plane magnetic recording medium; and a read/write signal processing unit for reading an output signal from the magnetic head and writing an input signal to the magnetic recording media, wherein the read unit of the magnetic head is a magnetoresistive head and the single underlayer or at least one of the plurality of underlayers is made of Co-containing amorphous material or fine crystal material, or is made of alloy material, the alloy material having as the main components at least one element selected from a group consisting of Cr, Mo, V and Ta and containing at least one element selected from a group consisting of B, C, P and Bi. The magnetic recording system can be realized which can read and write high density information and have high reliability.