Patent ID: 6816341
Filing Date: 2004-11-09
Classification: C10M,G11B,Y10T

Abstract:
A hard disk drive comprising:a magnetic disk to which is applied a first lubricating agent formed as: (where p=0 or an integer of at least 1, q=0 or an integer of at least 1, and X=1-5); a spindle motor spinning the magnetic disk; a magnetic head reading information recorded on the magnetic disk; an arm supporting the magnetic head; a voice coil motor positioning the arm on the magnetic disk; a circuit processing a signal read by the magnetic head; and a mechanism for supplying a second lubricating agent formed as: â€ƒHOCH2CF2(OC2F4)p(OCF2)qOCF2CH2OH(where p=0 or an integer of at least 1 and q=0 or an integer of at least 1).