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. 16, 2013
Filed:
Sep. 20, 2010
Takayuki Tsukamoto, Kanagawa-ken, JP;
Tsukasa Nakai, Tokyo, JP;
Akira Kikitsu, Kanagawa-ken, JP;
Takeshi Yamaguchi, Kanagawa-ken, JP;
Sumio Ashida, Tokyo, JP;
Takayuki Tsukamoto, Kanagawa-ken, JP;
Tsukasa Nakai, Tokyo, JP;
Akira Kikitsu, Kanagawa-ken, JP;
Takeshi Yamaguchi, Kanagawa-ken, JP;
Sumio Ashida, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an information recording and reproducing device includes a stacked body. The stacked body includes a first layer, a second layer and a recording layer provided between the first layer and the second layer. The recording layer includes a phase-change material and a crystal nucleus. The phase-change material is capable of reversely changing between a crystal state and an amorphous state by a current supplied via the first layer and the second layer. The crystal nucleus is provided in contact with the phase-change material and includes a crystal nucleus material having a crystal structure identical to a crystal structure of the crystal state of the phase-change material, and a crystal nucleus coating provided on a surface of the crystal nucleus material and having a composition different from a composition of the crystal nucleus material.