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 6704268 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 09, 2004

Filed:

Mar. 26, 2002
Applicant:
Inventor:

Yasukiyo Kunimatsu, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/09 ;
U.S. Cl.
CPC ...
G11B 7/09 ;
Abstract

An optical storage device including a carriage movable in the radial direction of an optical storage medium, a light source, a first lens fixed to the carriage for focusing a light beam emitted from the light source onto the optical storage medium, a second lens interposed between the first lens and the light source, a beam splitter for reflecting at least a part of the light beam transmitted through the second lens in a direction perpendicular to the optical storage medium, and an actuator for supporting the second lens so that the second lens is movable in a given direction. The actuator includes an actuator base fixed to the carriage, a lens holder for holding the second lens so that the optical axis of the second lens extends in a direction substantially parallel to the optical storage medium, a supporting mechanism for movably supporting the lens holder to the actuator base, and a driving mechanism for moving the second lens in the above given direction.


Find Patent Forward Citations

Kunimatsu, Yasukiyo. (2004). Optical storage device and optical pickup unit having track control (U.S. Patent No. 6704268). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6704268

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

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