Nhk Spring Co., Ltd.

Ryuichi Kawatake

Takashi Maruyama

Hajime Arai

Tsukasa Higashi

Ikuo Someya

Takuya Momose

Hisashi Shiramatsu

A method of manufacturing a metal part according to the present invention includes heating a shaped product of stainless steel to 600&#xb0; C. or more in an oxygen-free atmosphere and heat-treating the shaped product in an oxygen atmosphere after the heating.

Method of manufacturing metal part

A head suspension with a connecting structure for a plate material comprises a base plate attached to a carriage that rotates the base plate around an axis, a load beam including a rigid part and a resilient part, a base end of the load beam fixed to the base plate at a plurality of first welded points, a flexure including a read/write head and a wiring and fixed to the load beam at a plurality of second welded points, and a resin seat interposed between the load beam and the flexure so that the resin seat prevents the load beam and the flexure from hitting each other due to vibration of at least one of the load beam and the flexure.

Connecting structure for a plate material and an opposite member between which a resin seat is interposed and head suspension with the connecting structure

A head suspension prevents a read element from electrostatic discharge damage without employing a static electricity remover or without increasing the number of manufacturing processes. The head suspension has a load beam to apply load to a head that writes and reads data to and from a hard disk, a flexure made of a conductive thin substrate attached to the load beam and supporting the head, an insulating base layer made of flexible resin and formed on the substrate of the flexure, write wires and read wires connected to the head and formed on the insulating base layer, and an insulating cover layer covering the write and read wires on the insulating base layer. The insulating cover layer is made of slightly conductive flexible resin.

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Kanagawa, Japan

Ryuichi Kawatake