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:
May. 06, 2014
Filed:
Jul. 23, 2010
Kosuke Nakanishi, Kyoto, JP;
Shinya Tabata, Kyoto, JP;
Toshihide Sonoda, Kyoto, JP;
Yoshihisa Kitamura, Kyoto, JP;
Takuya Yamane, Kyoto, JP;
Kenta Miyoshi, Kyoto, JP;
Kosuke Nakanishi, Kyoto, JP;
Shinya Tabata, Kyoto, JP;
Toshihide Sonoda, Kyoto, JP;
Yoshihisa Kitamura, Kyoto, JP;
Takuya Yamane, Kyoto, JP;
Kenta Miyoshi, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A turntable for storage disk drive apparatuses includes a plate member made of a ferromagnetic material and a central resin member arranged at the center of the plate member and formed by injection-molding a resin. The central resin member includes a disk guide portion provided on an upper surface thereof to guide a central hole of a disk and a plurality of gate recess portions indented upwards from a lower surface of the central resin member. The gate recess portions include ceiling surfaces positioned higher than the plate member. The ceiling surfaces include a plurality of gate cut portions formed in an injection molding process.