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AssigneeSAE Magnetics (H.K.) Ltd.
InventorsMasashi Shiraishi, Ming Gao Yao, Tamon Kasajima
Estimating the term…
An HGA includes a head slider with at least one head element, a support and a precise positioning actuator fixed with the head slider and with the support for precisely positioning the at least one head element. The actuator includes a pair of movable arms capable of displacing in response to a drive signal applied to the actuator, for catching the head slider in a space between the movable arms. Each of the movable arms includes an arm member being made of an elastic sintered ceramic and having substantially the same cross sectional shape from a root thereof to a top end thereof, and a piezoelectric element formed on a side surface of the arm member. A spacing between base ends of the arm members is larger than a spacing between top ends of the arm members.
A head gimbal assembly including a head slider with at least one head element, a support and a precise positioning actuator fixed with said head slider and with said support for precisely positioning said at least one head element, said actuator including a pair of movable arms capable of displacing in response to a drive signal applied to said actuator, for catching said head slider in a space between said movable arms, each of said movable arms comprising an arm member being made of an elastic sintered ceramic and having substantially the same cross sectional shape from a root thereof to a top end thereof, and a piezoelectric element formed on a side surface of said arm member, a spacing between base ends of said arm members being larger than a spacing between top ends of said arm members.
A disk drive apparatus having at least one head gimbal assembly that includes a head slider with at least one head element, a support and a precise positioning actuator fixed with said head slider and with said support for precisely positioning said at least one head element, said actuator including a pair of movable arms capable of displacing in response to a drive signal applied to said actuator, for catching said head slider in a space between said movable arms, each of said movable arms comprising an arm member being made of an elastic sintered ceramic and having substantially the same cross sectional shape from a root thereof to a top end thereof, and a piezoelectric element formed on a side surface of said arm member, a spacing between base ends of said arm members being larger than a spacing between top ends of said arm members.
Dependencies are inferred from the claim text.