Nhk Spring Co., Ltd.

Yoichi Ikeji

Hiroshi Ono

Hideki Kashima

Hideki Fuchino

Jun Soga

Kazuhiko Otake

Tsuyoshi Amemiya

Hiroaki Kamijo

Haruyuki Yamamoto

Masato Kitakata

Itsuo Yasuda

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 suspension for supporting a magnetic head is provided with a load beam formed of a thin-plate spring. A recess for accommodating a damper is formed in the load beam. The damper is affixed to a bottom surface of the recess.

Suspension for a disk drive including a load beam having a recess containing a damper, and method for manufacturing suspension

Actuator elements are accommodated in openings formed in a conductive plate. These actuator elements are secured to the conductive plate by a resin bonding material. An electrode of each actuator element and the conductive plate are electrically connected to each other by a bridge junction consisting of an conductive paste. A paste application device discharges the conductive paste toward the bridge junction by air. A control unit configured to control the discharge of the conductive paste sets the air pressure according to the elapsed time of use of the conductive paste so that the height of the paste above the resin bonding material is not less than a target height. The target height is maintained by increasing the air pressure with increase of the elapsed time of use of the conductive paste.

Actuator mounting section of disk drive suspension, method of applying electrically conductive paste, and paste application device

A fitting structure for fitting a piezoelectric element to an actuator base that includes an opening that formed in the actuator base and accommodates the piezoelectric element, a receiver that inwardly protrudes from an inner circumferential edge of the opening and receives the piezoelectric element, a hole defined by an inner end of the receiver and communicates with the opening, a protrusion that protrudes from the inner end of the receiver onto the hole and faces the piezoelectric element through the hole, an adhesive part filled in a space defined by the piezoelectric element, the inner circumferential edge, and the receiver and is solidified in the space to adhere the piezoelectric element to the inner circumferential edge and the receiver, and a stopper formed on one of the receiver and protrusion and stops a capillary phenomenon of the adhesive between the piezoelectric element and the receiver and protrusion.

Piezoelectric element fitting structure and head suspension

A manufacturing method for a magnetic head supporting suspension includes forming a load beam blank having a load beam with a dimple formed therein, and a frame portion with a positioning part formed therein; and forming a flexure blank having a flexure and a frame portion. A fitting portion in the flexure blank is fittable to the positioning part. An anti-rotation portion is formed on the load beam blank or a member attached to the load beam blank. A receiving portion in the flexure blank is fittable to the anti-rotation portion. The load beam blank and flexure blank are superposed with the positioning part fitted to the fitting portion. The anti-rotation portion is fitted to the receiving portion, and the flexure is fixed to the load beam. The load beam and flexure are thereafter separated from the frame portions.

Manufacturing method for a magnetic head supporting suspension

Method for manufacturing a suspension

A head suspension provided with a plate welding structure relaxes a laser beam positioning accuracy, improves a mass production ability, suppresses the generation of spattered matter, and prevents the deformation of plates during welding. The head suspension () has a base plate () to be attached to a carriage and a load beam () having a rigid part () and a resilient part (). The load beam is supported by the base plate and applies load on a slider that is arranged at a front end of the load beam. A reinforcing plate () is laid over the base plate, and a laser beam is emitted to a weld spot to weld the reinforcing plate and base plate together. The reinforcing plate is provided with thin parts () each containing the weld spot. Each thin part is irradiated with a laser beam to weld the base plate and reinforcing plate together.

Growing community of inventors

Yokohama, Japan

Yoichi Ikeji