| Patent application number | Description | Published |
|---|
| 20090086379 | Head suspension and piezoelectric actuator - A head suspension with a piezoelectric element involves simple wiring and realizes high reliability, the head suspension has a base plate, a load beam connected to the base plate, a flexure attached to the load beam, and a piezoelectric actuator having a piezoelectric element arranged between the base plate and the load beam, the piezoelectric element is configured to deform according to a state of applied voltage and move a front end of the load beam in a sway direction according to the deformation, and the piezoelectric element has first and second piezoelectric parts that are oppositely polarized and deform according to a state of applied voltage, a common electrode formed over first surfaces of the first and second piezoelectric parts, a first electrode formed on a second surface of the first piezoelectric part, and a second electrode formed on a second surface of the second piezoelectric part. | 04-02-2009 |
| 20100067151 | Electrical connecting structure for piezoelectric element, piezoelectric actuator, head suspension, and electrical connecting structure for conductive part - A piezoelectric element | 03-18-2010 |
| 20100085663 | HEAD SUSPENSION AND METHOD OF MANUFACTURING HEAD SUSPENSION - A head suspension | 04-08-2010 |
| 20100165515 | WIRING CONNECTING STRUCTURE FOR PIEZOELECTRIC ELEMENT, WIRING CONNECTING METHOD, PIEZOELECTRIC ACTUATOR, AND HEAD SUSPENSION - A wiring connecting structure for a piezoelectric element is capable of performing wiring to the piezoelectric element without deteriorating the quality and reliability of the piezoelectric element. The piezoelectric element is arranged between a base and head of an object, to minutely move the head in a sway direction according to deformation that occurs on the piezoelectric element in response to a voltage applied from a terminal to an electrode of the piezoelectric element. The wiring connecting structure includes first and second liquid stoppers arranged between the terminal and the electrode, the second liquid stopper being arranged outside the first liquid stopper. The wiring connecting structure also includes an adhesive part to connect the electrode to the terminal. The adhesive part has a conductive adhesive part defined by the first liquid stopper and a sealing adhesive part defined by the second liquid stopper. The sealing adhesive part seals the first liquid stopper and conductive adhesive part. | 07-01-2010 |
| 20100208390 | HEAD SUSPENSION - A head suspension has a base plate | 08-19-2010 |
| 20100290158 | HEAD SUSPENSION - A head suspension with a piezoelectric actuator secures basic characteristics such as vibration and impact characteristics without deteriorating a displacement stroke of the piezoelectric actuator. The head suspension has a load beam and a piezoelectric actuator, the piezoelectric actuator supporting a base part of the load beam and configured to displace a front end of the load beam in a sway direction. The piezoelectric actuator has an actuator base and at least a piezoelectric element, the actuator base connected to the base part of the load beam and having at least an opening, the piezoelectric element attached to the opening and deforming in response to a voltage applied thereto to conduct displacement of the front end of the load beam. The head suspension includes a circumferential side face of the piezoelectric element, a circumferential edge of the opening, configured to define the opening in the actuator base and surround and face the circumferential side face of the piezoelectric element, a bottom receiver formed at the opening, configured to face the periphery of a bottom face of the piezoelectric element, a clearance splitting the circumferential edge of the opening and the bottom receiver, configured to allow the piezoelectric element to deform, and a nonconductive adhesive applied at least between the circumferential edge of the opening and the circumferential side face of the piezoelectric element and between the bottom receiver and the bottom face of the piezoelectric element, configured to adhere the piezoelectric element to the opening. | 11-18-2010 |
| 20100302687 | PIEZOELECTRIC ELEMENT WITH ELECTRODE AND HEAD SUSPENSION - 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. | 12-02-2010 |
