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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.:

US 6987649 B1

PDFFull Text
Date of Patent:
Jan. 17, 2006

Filed:

Aug. 30, 2001

Magnetic head apparatus with microactuator having function of short-circuiting both electrodes of epiezoelectric elements and method of manufacturing the same

Applicant:

Masayoshi Nakagawa, Niigata-ken, JP;

Inventor:

Masayoshi Nakagawa, Niigata-ken, JP;

Assignee:

Alps Electric Co., Ltd., Tokyo, JP;

Attorney:

Brinks, Hofer, Gilson & Lione

Primary Examiner:

Tianjie Chen

Int. Cl.
CPC ...
G11B 5/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

The supersonic cleaning of a magnetic head apparatus is executed while the control conductive pattern and the conductive leaf spring are electrically connected by means of soldering, and the conductive leaf spring is grounded. This makes it possible to prevent the accumulation of electrostatic charges in the piezoelectric elements on the magnetic head apparatus, thereby preventing the development of surge current or reducing the intensity thereof, and reducing the damage to the reproducing elements and the recording element mounted on the slider of the magnetic head apparatus.

Find Patent Forward Citations

Nakagawa, Masayoshi. (2006). Magnetic head apparatus with microactuator having function of short-circuiting both electrodes of epiezoelectric elements and method of manufacturing the same (U.S. Patent No. 6987649). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6987649

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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