Magnetic head for reducing projection of retrieving and...

Details Magnetic head for reducing projection of retrieving and... Magnetic head for reducing projection of retrieving and...

2006-06-20

2006-06-20

Evans, Jefferson (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

C360S234300, C360S235200, C360S317000

Reexamination Certificate

active

07064925

ABSTRACT:
A magnetic head comprises a retrieving unit for converting magnetic information output from a recording medium into an electric signal, a writing unit having the function of electromagnetic conversion for writing the magnetic information in the recording medium in response to the electric signal, and a first protective film formed on the retrieving unit. A second protective film is formed on the first protective film. The coefficient of linear expansion of the second protective film is reduced in comparison with that of the first protective film. Furthermore, the first protective film is an alumina film; in contrast, the second protective film is a film made of an alumina film containing silicon oxide therein.

REFERENCES:
patent: 5930077 (1999-07-01), Obata et al.
patent: 6400531 (2002-06-01), Inoue et al.
patent: 6477011 (2002-11-01), Hsiao et al.
patent: 6524687 (2003-02-01), Horng et al.
patent: 6661621 (2003-12-01), Iitsuka
patent: 6687089 (2004-02-01), Chiba et al.
patent: 2-56712 (1990-02-01), None
patent: 5-182133 (1993-07-01), None
patent: 306215 (2002-07-01), None
patent: 2003-347157 (2003-12-01), None

Affiliated with

Also associated with

Rating

Magnetic head for reducing projection of retrieving and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic head for reducing projection of retrieving and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head for reducing projection of retrieving and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3654728