Static information storage and retrieval – Systems using particular element – Magnetoresistive
Reexamination Certificate
2008-07-17
2010-10-05
Nguyen, Tan T. (Department: 2827)
Static information storage and retrieval
Systems using particular element
Magnetoresistive
C365S148000, C365S171000
Reexamination Certificate
active
07808814
ABSTRACT:
The magnetization state of a ferromagnetic material is controlled by applying a current pulse to it while externally applying a weak magnetic field to it. The magnetic state of a ferromagnetic material can be switched between a uniformly magnetized state and a multiple magnetic domain structure by controlling the direction and intensity of the magnetic field applied to it and the intensity and pulse width of the current pulse. When an external magnetic field is applied, the possibility of occurrence of the reversal of the magnetic state upon application of the current pulse shows a hysteresis, and the reversal of the magnetic state can be controlled reliably. The intensity of the magnetic field to be applied may be as weak as a few gauss. Furthermore, by using such magnetic information recording elements, a magnetic information recording device (memory) that can achieve a high degree of integration can be produced.
REFERENCES:
patent: 5870328 (1999-02-01), Mohri
patent: 6509621 (2003-01-01), Nakao
patent: 6950335 (2005-09-01), Dieny et al.
patent: 7221583 (2007-05-01), Ikeda
patent: 7257018 (2007-08-01), Ho et al.
patent: 7457149 (2008-11-01), Ho et al.
patent: 7480175 (2009-01-01), Dieny et al.
Harada Ken
Kimura Takashi
Matsuda Tsuyoshi
Otani Yoshichika
Togawa Yoshihiko
Nguyen Tan T.
Nixon & Vanderhye P.C.
Riken
LandOfFree
Magnetization state control device and magnetic information... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetization state control device and magnetic information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetization state control device and magnetic information... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4160718