The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2007
Filed:
Feb. 06, 2004
Applicants:
Yutaka Yamamoto, Niigata-ken, JP;
Jun-ichi Murakami, Niigata-ken, JP;
Hiroya Sawairi, Niigata-ken, JP;
Inventors:
Yutaka Yamamoto, Niigata-ken, JP;
Jun-ichi Murakami, Niigata-ken, JP;
Hiroya Sawairi, Niigata-ken, JP;
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/54 (2006.01); G11B 21/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetic head actuator includes a head-holding substrate having a pair of movable arms for clamping a magnetic head, and piezoelectric elements fixed along the pair of movable arms to move the pair of movable arms in response to an applied voltage. The head-holding substrate comprises a fired glass-ceramic compact containing at least one of SiO, BO, and AlO. The piezoelectric elements are formed on the head-holding substrate with a piezoelectric material by printing and low-temperature firing.