Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuyoshi Ishii0
Date of Patent
April 7, 2009
0Patent Application Number
114901440
Date Filed
July 21, 2006
0Patent Primary Examiner
Patent abstract
A protection member for preventing the contact of an objective lens with an optical disk is a thin plate member composed of an elastic material softer than a cover layer of the optical disk and has a plurality of convex-shaped parts formed on a surface thereof, which is opposed to the optical disk, so as to surround the objective lens.
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