Patent ID: 9640205
Date: 2017-05-02
CPC Classifications: G11B

Claim:
1. A magnetic recording-reproducing head comprising, on a support member: a first head section having a function of executing a recording process and having a function of executing a reproducing process; and one or more second head sections each having a function of executing an erasing process and having no function of executing a reproducing process, wherein the first head section includes a recording magnetic pole layer that executes the recording process, and includes a magneto-resistive effect element that executes the reproducing process, the one or more second head sections each include an erasing magnetic pole layer that executes the erasing process, and include no magneto-resistive effect element that executes the reproducing process, and a width of a trailing edge of the erasing magnetic pole layer on an air bearing surface is greater than a width of a trailing edge of the recording magnetic pole layer on the air bearing surface.