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:
Oct. 05, 2010
Filed:
Dec. 07, 2005
Joichiro Ezaki, Tokyo, JP;
Yuji Kakinuma, Tokyo, JP;
Joichiro Ezaki, Tokyo, JP;
Yuji Kakinuma, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
There is provided a magnetic memory device capable of reading information even with a lower power supply voltage. The magnetic memory device is equipped with a plurality of storage cells laid out in two dimensions in (i+1) rows and (j+1) columns (where i, j are integers of one or higher). Two magnetoresistive effect revealing bodiesare disposed in each of the storage cells, and each storage cell includes: a first stage circuitthat supplies currents Ib, Ibfor detecting resistances of magnetoresistive effect revealing bodies; an X-direction address decoder circuitthat supplies currents Iw, Iwto the magnetoresistive effect revealing bodies; and a current control circuit (constant current circuit) that carries out control so that the total of the current Iband the current Iwand the total of the current Iwand the current Ibare respectively constant.