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:
May. 29, 2012
Filed:
Dec. 11, 2009
Takayuki Tsukamoto, Kawasaki, JP;
Kohichi Kubo, Yokohama, JP;
Chikayoshi Kamata, Kawasaki, JP;
Takahiro Hirai, Yokohama, JP;
Shinya Aoki, Yokohama, JP;
Toshiro Hiraoka, Yokohama, JP;
Takayuki Tsukamoto, Kawasaki, JP;
Kohichi Kubo, Yokohama, JP;
Chikayoshi Kamata, Kawasaki, JP;
Takahiro Hirai, Yokohama, JP;
Shinya Aoki, Yokohama, JP;
Toshiro Hiraoka, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An information recording/reproducing device includes a recording layer, and a recording circuit which records data to the recording layer by generating a phase change in the recording layer. The recording layer includes a first chemical compound having a spinel structure. The recording layer is AMX(0.1≦x≦2.2, 1.0≦y≦2.0), where A includes one selected from a group of Zn, Cd and Hg, M includes one selected from a group of Ti, Zr, Hf, V, Nb and Ta, and X includes O.