Title:
【発明の名称】薄膜磁気ヘッド
Document Type and Number:
Japanese Patent JP2790811
Kind Code:
B2
Abstract:
A yoke type thin-film magneto-resistive head of the present invention comprises a magneto-resistive element (2) that detects magnetic field generated in the magnetic recording medium as resistance change, a yoke (1,5), that lead magnetic flux from the head gap to the above mentioned magneto-resistive element, a DC magnetic field application system, that applies a desirable weak magnetic field to the above mentioned longitudinal direction of magneto-resistive element (2), and a conductor (4,4), that applies a desirable bias magnetic field to the above mentioned magneto-resistive element (2) in the strip width direction, the easy axis of magnetization of said magneto-resistive element (2) is inclined 20 DEG - 40 DEG to mentioned longitudinal direction of magneto-resistive element, so that, anisotropic angle dispersion conditions are relaxed, at the same time, by applying a desirable bias magnetic field to the magneto-resistive element (2) in the strip width direction, and by shifting the operating point to a point being excellent in linearity, Barkhausen noise, caused by magnetization switching generated in the magnetic field area with a direction the same as the bias magnetic field direction, can be suppressed, and the reproducing output signal can be of high fidelity.
Inventors:
SHIIBA KENGO
Application Number:
JP9748488A
Publication Date:
August 27, 1998
Filing Date:
April 20, 1988
Export Citation:
Assignee:
SHAAPU KK
International Classes:
G11B5/39; (IPC1-7): G11B5/39
Domestic Patent References:
| JP62132211A | ||||
| JP59231728A | ||||
| JP58192392A |
Attorney, Agent or Firm:
Umeda Masaru (2 outside)