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:
Dec. 30, 2008
Filed:
Jun. 10, 2004
Yoshihiro Kanda, Osaka, JP;
Yoshihiro Mushika, Neyagawa, JP;
Yoshihiro Kanda, Osaka, JP;
Yoshihiro Mushika, Neyagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
To greatly increase the storage density of a storage apparatus, an electron beam E emitted from a cold cathodeis accelerated by an accelerating electrode, caused to converge by a convergence electrode, deflected by a deflection electrodeand applied to a minute region of a storage film. The storage filmincludes, for example, a phase change film. The film is rapidly heated and cooled to change into an amorphous state upon irradiation with an electron beam E with high energy, while being gradually cooled to change into a crystallized state upon irradiation with an electron beam E with approximately intermediate energy, thereby storing data. Upon irradiation with an electron beam E with low energy, the potential difference between a detection electrodeand an anodeis detected depending on the state, i.e., the amorphous or crystallized state, thereby reading stored data.