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:
Dec. 10, 1996
Filed:
May. 05, 1995
Yoshifumi Mizoshita, Kawasaki, JP;
Takao Koshikawa, Kawasaki, JP;
Hitoshi Kanai, Kawasaki, JP;
Junichi Kane, Kawasaki, JP;
Yoshinori Otsuka, Kawasaki, JP;
Yukinori Ikegawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magneto-resistive (MR) head has an MR layer in a space formed by shield layers by providing a distance enough to protect magnetic flux, flowing through the MR layer from a recording medium through a gap formed by the shield layers, from leaking out to the shield layers. A flux guide is provided between the MR layer and the gap and has an end magnetically connected to the MR extending over an effective area of the MR head, and another end having a width a little narrower than a width of track of the recording medium. A side of the MR layer, opposite to the side connected with the flux guide layer is placed in a narrow space formed at a corner of the space. Magnetic flux leaked from the gap due to a sense current flowing through the MR layer is eliminated by making a current flow through a recording coil layer or through an electrically conductive layer placed in the space.