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 7710846 B1

PDF
Full Text
Expired
Date of Patent:
May. 04, 2010

Filed:

Mar. 29, 2007
Applicants:

Junichi Moriyama, Ibaraki, JP;

Kazuaki Mochida, Ibaraki, JP;

Sunao Inoue, Fukaya, JP;

Inventors:

Junichi Moriyama, Ibaraki, JP;

Kazuaki Mochida, Ibaraki, JP;

Sunao Inoue, Fukaya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides: a protection member used for preventing a contact between a lens for focusing light on an optical information recording medium and the optical information recording medium upon optically recording or reproducing information on or from the optical information recording medium, the protection member including an ultrahigh molecular weight polyethylene porous film; and an optical pickup device having the protection member.


Find Patent Forward Citations

Moriyama, Junichi. (2010). Protection member and optical pickup device using the same (U.S. Patent No. 7710846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7710846

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

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