Nhk Spring Co., Ltd.

Jun Soga

Masao Hanya

Hiroshi Ono

Toshiki Ando

Tatsuhiko Nishida

Hideki Kashima

Ichiro Takadera

Hideki Fuchino

Koji Uozumi

Yoichi Ikeji

Osamu Ohkawara

Hiroaki Kamijo

Eiji Kuranari

A terminal extending from a wiring member to face an electrode of a piezoelectric element and including a proximal end part and a distal end part with respect to the wiring member, the distal end part being connected to the electrode of the piezoelectric element through a conductive adhesive, comprising an insulating layer that faces the electrode of the piezoelectric element; a wiring layer laid on the insulating layer and connected to the electrode at the distal end part; and at least one liquid stopping recess provided on a surface facing the electrode at the proximal end part, the liquid stopping recess spanning between both edges of the insulating layer in an direction intersecting an extending direction of the proximal end part.

Terminal capable of stopping flow of oozed conductive adhesive, flexure having the terminal, and head suspension having the flexure

A disk drive suspension is provided with a load beam and a flexure. A tongue portion is formed on the flexure. The tongue portion comprises a slider mounting surface and a flat portion. A slider is mounted on the slider mounting surface. A dimple is formed on the flat portion. A tip of the dimple projects thicknesswise relative to the tongue portion toward the load beam. A protrusion is formed on a facing surface of the load beam. An end face of the protrusion projects thicknesswise relative to the load beam toward the dimple. As the tip of the dimple contacts the end face of the protrusion, the tongue portion is swingably supported on the protrusion.

Disk drive suspension having a load beam and flexure, a projection height of a dimple formed on the flexure being less than a projecting height of a protrusion formed on a surface of the load beam which faces the dimple

A piezoelectric element with electrode is capable of preventing an assembling error. The piezoelectric element includes a piezoelectric body configured to deform according to polarity in response to a voltage applied thereto, electrodes formed on surfaces of the piezoelectric body, respectively, a non-electrode part formed on at least one of the surfaces of the piezoelectric body, the non-electrode part continuing to the one electrode that is on the at least one surface of the piezoelectric body, and a boundary between the non-electrode part and the one electrode. The boundary has a pattern to indicate the polarity of the piezoelectric element.

Piezoelectric element with electrode and head suspension

A disc drive apparatus has a base, a disc, and a carriage. The base has a first vibration mode and a second vibration mode as reference vibration modes with respect to frequency response characteristics observed when the disc drive apparatus is shaken. The second vibration mode has a low-frequency second vibration mode (Base 2nd-1), in which a waveform peak is created on the low-frequency side, and a high-frequency second vibration mode (Base 2nd-2), in which a waveform peak is created on the high-frequency side. The two second vibration modes (Base 2nd-1 and Base 2nd-2) have a relationship such that the phase of a pivot position is inverted between them. A frequency of a first bending mode of an arm of the carriage is set in a frequency domain in a trough between the two second vibration modes.

Disc drive apparatus

A suspension comprises a load beam made of a thin metal plate, a flexure made of a thinner metal plate than this load beam and fixed to the load beam, and a wiring portion. The flexure includes a tongue, and a pair of outrigger portions positioned at both sides of the tongue. A slider is provided on the tongue. The wiring portion includes an electrical insulating resin layer provided on the flexure, and an electrical conductive layer laminated on this electrical insulating resin layer. The wiring portion further includes a middle flexible part along the outrigger portions. This middle flexible part is separated from the tongue and outrigger portions, and is in a suspended state in a slit between the tongue and outrigger portions.

Growing community of inventors

Aikoh-gun, Japan

Jun Soga