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. 05, 2016
Filed:
Sep. 06, 2012
Jiro Hashidume, Tokyo, JP;
Yoshiaki Yamauchi, Tokyo, JP;
Jiro Hashidume, Tokyo, JP;
Yoshiaki Yamauchi, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention provides a recording device that offers a large displacement control effect. The recording device includes a recording medium, a motorthat drives the recording medium, and a recording device head Mthat records and reproduces a signal to and from the recording medium. The recording device also has a displacement control mechanism M. The displacement control mechanism Mincludes a vibrating platethat has two opposing surfaces facing the recording medium, the vibrating plate being displaced in the rotation axis direction of the recording medium; and an oscillatorthat is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate.