Title:
MAGNETIC SENSOR ELEMENT, MAGNETIC REPRODUCTION HEAD, MAGNETIC REPRODUCER AND MAGNETIC REPRODUCING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/119519
Kind Code:
A1
Abstract:
A magnetic sensor element comprises a magnetic body layer (2), a buffer layer
(3) formed thereon, and a magnetic sensing portion (7) consisting of a magnetoresistive
effect element fabricated by forming a magnetization fixed layer (4), a nonmagnetic
body layer (5) and a magnetization free layer (6) sequentially on the buffer layer
(3). Furthermore, a buffer layer (8) formed to sandwich the magnetic sensing
portion (7) together with the buffer layer (3), and a bias layer (10) formed on
the magnetic body layer (2) through a nonconductor layer (9) on the opposite sides
of a portion consisting of the buffer layer (3), the magnetic sensing portion
(7) and the buffer layer (8) are provided, and a proximity field light generating
portion (14) consisting of a magnetic body layer (11), a dielectric layer (12)
and a metal body layer (13) is formed on the surface thereof. Consequently, a
magnetic sensor element capable of efficient light assist reproduction of a
magnetic recording medium, a magnetic reproduction head and a magnetic reproducer
employing that element, and a magnetic reproduction method of a magnetic recording
medium employing that magnetic reproducer are obtained.
More Like This:
Inventors:
IWATA NOBORU (JP)
MIYANISHI SHINTARO (JP)
ONO TOMOKI (JP)
MURAKAMI YOSHITERU (JP)
MIYANISHI SHINTARO (JP)
ONO TOMOKI (JP)
MURAKAMI YOSHITERU (JP)
Application Number:
PCT/JP2007/056295
Publication Date:
October 25, 2007
Filing Date:
March 27, 2007
Export Citation:
Assignee:
SHARP KK (JP)
IWATA NOBORU (JP)
MIYANISHI SHINTARO (JP)
ONO TOMOKI (JP)
MURAKAMI YOSHITERU (JP)
IWATA NOBORU (JP)
MIYANISHI SHINTARO (JP)
ONO TOMOKI (JP)
MURAKAMI YOSHITERU (JP)
International Classes:
G11B5/02; G11B11/10
Foreign References:
| JP2003006803A | 2003-01-10 |
Attorney, Agent or Firm:
KAJI, Yoshiyuki et al. (SUHARA & ASSOCIATES Recruit Shin Osaka BLDG. 14-22 Nishinakajima 5-chome, Yodogawa-ku, Osaka-sh, Osaka 11, JP)
Download PDF: