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. 26, 2019
Filed:
Dec. 14, 2018
Panasonic Corporation, Osaka, JP;
Ryutaro Yasuhara, Hyogo, JP;
PANASONIC CORPORATION, Osaka, JP;
Abstract
A non-volatile storage device includes: a first electrode; a second electrode; a variable resistance element including a variable resistance layer having a resistance value which changes according to a voltage pulse applied between the first and second electrodes; a voltage pulse application circuit which applies the voltage pulse between the first and second electrodes; and a control circuit which controls the voltage pulse application circuit. Upon receiving an external instruction, the control circuit: reads a current resistance state of the variable resistance element; and when the current resistance state is the high resistance state, causes the voltage pulse application circuit to apply a first additional voltage pulse having a first polarity between the electrodes; and when the current resistance state is the low resistance state, causes the voltage pulse application circuit to apply, between the electrodes, a second additional voltage pulse having a second polarity different from the first polarity.