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 8045440 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 25, 2011

Filed:

Feb. 09, 2007
Applicants:

Takakazu Miyahara, Minamisatsuma, JP;

Terumasa Miyahara, Minamisatsuma, JP;

Inventors:

Takakazu Miyahara, Minamisatsuma, JP;

Terumasa Miyahara, Minamisatsuma, JP;

Assignee:

Elm Inc., Minamisatsuma-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 3/58 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical disk polishing device which includes: a disk holder for rotatably holding an optical disk, the disk holder installed in a lower fixed portion; a cylindrical buff disposed in parallel with the surface of the optical disk and perpendicular to a rotary shaft of the disk holder in an offset manner; a drive motor to rotate the buff; and an upper opening-and-closing portion normally urged to an open state to the lower fixed portion by a spring or other member. The device makes it possible to clean a readout surface of the optical disk in a short period of time, and to be offered at a low price owing to the simple and small-sized structure thereof.


Find Patent Forward Citations

Miyahara, Takakazu. (2011). Optical disk cleaning device (U.S. Patent No. 8045440). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8045440

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