Apparatus Characterised By The Shape Of Record Carrier Employed But Not Specific To The Method Of Recording Or Reproducing (individual Parts Of Apparatus G9b/3 To G9b/23, G9b/33), [n: E.g. Dictating Apparatus; Combinations Of Such Apparatus] {g11b 25/00} Patents (Class G9B/25)
  • Publication number: 20110041145
    Abstract: The present invention provides a spindle motor for an optical disc drive. The spindle motor comprises a turntable unit and an anti-slipping element. The turntable unit has a disc mounting stand, which has a first outer diameter. The anti-slipping element is disposed on said turntable unit and has a first inner diameter, wherein the difference between the first outer diameter and the first inner diameter is less than or equal to 8 mm.
    Type: Application
    Filed: November 2, 2009
    Publication date: February 17, 2011
    Inventors: Shih-Lin Yeh, Chun-Lung Ho
  • Publication number: 20110033143
    Abstract: A disk drive device includes a rotating body, a fluid dynamic bearing unit that rotatably supports the rotating body, and a drive unit. The fluid dynamic bearing unit has: a lubricant holding portion in which lubricant is held; a first thrust dynamic pressure groove with which a first thrust dynamic pressure generating portion for generating the dynamic pressure in the pump-in direction, which is oriented toward the inside of the lubricant holding portion, is structured; and a second thrust dynamic pressure groove with which a second thrust dynamic pressure generating portion for generating at least the dynamic pressure in the pump-out direction, is structured.
    Type: Application
    Filed: July 16, 2010
    Publication date: February 10, 2011
    Applicant: ALPHANA TECHNOLOGY CO., LTD.
    Inventors: Takuji Yamada, Mitsuo Kodama