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:
Apr. 30, 2013
Filed:
Sep. 17, 2010
Chikayoshi Kamata, Kawasaki, JP;
Takayuki Tsukamoto, Kawasaki, JP;
Takeshi Yamaguchi, Kawasaki, JP;
Tsukasa Nakai, Hino, JP;
Takahiro Hirai, Yokohama, JP;
Shinya Aoki, Yokohama, JP;
Kohichi Kubo, Yokohama, JP;
Chikayoshi Kamata, Kawasaki, JP;
Takayuki Tsukamoto, Kawasaki, JP;
Takeshi Yamaguchi, Kawasaki, JP;
Tsukasa Nakai, Hino, JP;
Takahiro Hirai, Yokohama, JP;
Shinya Aoki, Yokohama, JP;
Kohichi Kubo, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an information recording and reproducing device includes a recording layer which includes a typical element and a transition element, and stores a state of a first electric resistivity and a state of a second electric resistivity different from the first electric resistivity by a movement of the typical element, and an electrode layer which is disposed at one end of the recording layer to apply a voltage or a current to the recording layer. The recording layer includes a first region which is in contact with the electrode layer and the electrode layer includes a second region which is in contact with the recording layer. The first and second regions are opposite to each other. And the first and second regions include the typical element, and a concentration of the typical element in the second region is higher than that in the first region.