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.:
Date of Patent:
Nov. 30, 2010
Filed:
Sep. 27, 2006
Mitsutaka Shizuya, Ryugasaki, JP;
Shinya Tsubota, Mito, JP;
Mitsutaka Shizuya, Ryugasaki, JP;
Shinya Tsubota, Mito, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi-LG Data Storage, Inc., Tokyo, JP;
Abstract
An optical disc drive is fitted with a pickup, a non-contacting cooling plate, and a resinous movable spacer. The cooling plate adjacently faces and is fixed to the under, right, or left side of the pickup. The movable spacer is fitted to one of the facing sides of the pickup and cooling plate and prevents direct contact between the pickup and the plate. This drive structure prevents pickup movement interference due to collision between the pickup and the cooling plate, contamination production, needless electric conduction, etc., so that the clearance between the facing sides of the metallic pickup and metallic non-contacting cooling plate is narrow. The narrow clearance results in an improved heat conduction and radiation characteristic, improving the cooling of the whole pickup.