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:
Mar. 13, 2012
Filed:
Jul. 24, 2009
Mitsutaka Shizuya, Ryugasaki, JP;
Shinya Tsubota, Mito, JP;
Hiroshi Yamagishi, Chiba, JP;
Sojiro Kirihara, Kawasaki, JP;
Mitsutaka Shizuya, Ryugasaki, JP;
Shinya Tsubota, Mito, JP;
Hiroshi Yamagishi, Chiba, JP;
Sojiro Kirihara, Kawasaki, JP;
Hitachi Consumer Electronics Co., Ltd., Tokyo, JP;
Hitachi-LG Data Storage, Inc., Tokyo, JP;
Abstract
An optical disc apparatus for enabling reduction of fluid noises accompanying with disc rotation, effectively, comprises a trayprovided to be able to comes in/out into/from said housing freely, a unit mechanismprovided together with the tray, in one body, a turntableprovided on the unit mechanism and configured to support a disc thereon, to be rotatable freely, a plural number of wall portionstoformed on the tray surrounding the disc supported on the turntable from an outer periphery thereof, each of which has configuration like an arc around a rotation center of the turntable, a pickupfor doing straight-line motion within along a radius direction of a disc, and an opening, which is provided on the wall portionlocating at the position on the moving track of the pickup, for maintaining movement of the pickup, wherein the wall portionis moved or stepped back to a side of an outer periphery of the turntable comparing to other wall portions.