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:
Apr. 07, 1992
Filed:
Jan. 26, 1990
Shintaro Nagatsuka, Yokohama, JP;
Naoki Miyagi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A magnetic head apparatus has a piezoelectric element comprising a pair of piezoelectric members. A magnetic head is mounted on the piezoelectric element and records/reproduces desired data. A non-magnetic metal member having a predetermined coefficient of thermal expansion is formed between the piezoelectric members. A driving circuit is connected to the piezoelectric element and the non-magnetic metal member, and drives the magnetic head in a direction substantially perpendicular to the head trace direction, by applying a predetermined voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile