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:
Jul. 14, 2026
Filed:
Feb. 12, 2024
Kioxia Corporation, Tokyo, JP;
Naomi Takeda, Yokohama Kanagawa, JP;
Masanobu Shirakawa, Chigasaki Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A memory system includes: a non-volatile memory including blocks each including memory cells; and a memory controller configured to execute a first read process of reading data from a first memory cell in a first block by using a first voltage and a second read process of reading data from a second memory cell in the first block by using a second voltage. The memory controller is configured to: maintain, when a first condition is satisfied, a difference between the first and second voltages at a first value, and change both the first and second voltages; and change, when a second condition is satisfied after the first condition has been satisfied, a difference between the first and second voltages from the first value to a second value, and change at least one of the first and second voltages.