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 6931650 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 16, 2005

Filed:

Dec. 17, 2002
Applicants:

Kazuyuki Matsumura, Kumamoto, JP;

Munenori Aoyagi, Kumamoto, JP;

Inventors:

Kazuyuki Matsumura, Kumamoto, JP;

Munenori Aoyagi, Kumamoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B007/00 ;
U.S. Cl.
CPC ...
Abstract

A pickup device employing an inexpensive flexible printed circuit sheet (FPC) which demonstrates preferable electrical characteristics. FPC has a signal conductive layer inside, and a U-shape bending portion is formed in a midway of FPC at a position where a hologram unit is connected. An opening is formed on FPC adjacent to an area when the hologram unit is connected, and the length of this opening is longer than the height of the hologram unit.


Find Patent Forward Citations

Matsumura, Kazuyuki. (2005). Pickup device and disk drive (U.S. Patent No. 6931650). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6931650

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

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