Tdk Corporation

Alps Alpine Co., Ltd.

Kunio Yamanaka

Toshihiro Kobayashi

Jun Takahashi

Akira Takahashi

Hideto Ando

Takafumi Noguchi

Akira Miyatake

Masayuki Obana

Yuki Imai

Kyoko Hotta

Kenichiro Ikeda

A magnetic sensor including a first magneto resistive effect element located on a first surface of a substrate and having a sensitivity axis in a first direction that is one of in-plane directions of the first surface, a positioning soft magnetic body including a first most proximal portion of which a relative position with respect to the magneto resistive effect element is defined, and provided in a non-contact manner with respect to the first magneto resistive effect element, and a first soft magnetic body and a second soft magnetic body juxtaposed in the first direction and extending in a direction away from the first surface, and each of the first soft magnetic body and the second soft magnetic body is magnetically connected to the positioning soft magnetic body.

Magnetic sensor

A perpendicular magnetic recording head includes a read part disposed on a substrate to read magnetic recording information from a recording medium by a magnetoresistance effect; a write part disposed above the read part to record magnetic information on the recording medium by applying a perpendicular magnetic field, and including a write coil; a heating element disposed between the write coil and the read part; and a heat-dissipating layer disposed between the write coil and the heating element. The heating element generates heat when supplied with current so that the read part is thermally expanded to protrude toward the recording medium. The heat-dissipating layer has a heat dissipation effect.

Perpendicular magnetic recording head including heating element

Growing community of inventors

Niigata-ken, Japan

Kunio Yamanaka