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. 29, 2011
Filed:
May. 31, 2006
Applicants:
Noboru Ohtsuka, Yokohama, JP;
Kazuki Oda, Yokohama, JP;
Kenji Tsuchiya, Yokohama, JP;
Tatsuya Tanaka, Yokohama, JP;
Inventors:
Noboru Ohtsuka, Yokohama, JP;
Kazuki Oda, Yokohama, JP;
Kenji Tsuchiya, Yokohama, JP;
Tatsuya Tanaka, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G06F 13/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes a first nonvolatile memory which has a first external interface and is capable of recording 1-bit data in one memory cell, a second nonvolatile memory which has a test terminal interface and is capable of recording a plurality of data in one memory cell, and a control unit which has a second external interface and is configured to control a physical state of an inside of the second nonvolatile memory.