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.

Date of Patent:
Jul. 08, 2014

Filed:

Apr. 19, 2012
Applicants:

Eiichi Shirakura, Aikoh-gun, JP;

Koji Sotokawa, Aikoh-gun, JP;

Shinpei Kakiuchi, Aikoh-gun, JP;

Inventors:

Eiichi Shirakura, Aikoh-gun, JP;

Koji Sotokawa, Aikoh-gun, JP;

Shinpei Kakiuchi, Aikoh-gun, JP;

Assignee:

NHK Spring Co., Ltd., Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 11/26 (2006.01); G11B 21/21 (2006.01); G11B 11/26 (2006.01); G01C 15/00 (2006.01);
U.S. Cl.
CPC ...
G11B 21/21 (2013.01); G11B 11/26 (2013.01); G01C 15/004 (2013.01); G01C 15/002 (2013.01);
Abstract

An attitude correction apparatus includes a pair of opposing laser emitters that face each other. Each of the laser emitters includes a laser oscillator to generate a laser beam, a condenser lens to emit the laser beam toward the head suspension, and galvanomirrors to adjust the directivity of an optical axis of the laser beam from a standby state toward a spot on the head suspension. The condenser lens of each laser emitter is positioned so that the directivity of the optical axis of the laser beam in the standby state disagrees with an optical path that passes through the condenser lens and laser oscillator of the other laser emitter.


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