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. 16, 2004
Filed:
Apr. 05, 2002
Yoshihiro Shiroishi, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic recording and reading device having a transfer rate of not less than 50 MB/s includes a magnetic recording medium having an absolute value of normalized noise coefficient per recording density of not more than 2.5×10 (&mgr;Vrms)(inch)(&mgr;m) /(&mgr;Vpp), and magnetic head which is mounted on an integrated circuit suspension so that a total inductance is reduced to be not more than 65 nH and having a magnetic core which is not more than 35 &mgr;m of length, wherein a part of the magnetic core being formed by a magnetic film having a resistivity exceeding at least 50 &mgr;&OHgr;cm or by a multilayer film consisting of a magnetic film and an insulating film. The device also includes a fast R/W-IC having a line width of not more than 0.35 &mgr;m which is installed in a position within 2 cm from a rear end of the magnetic head.