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. 19, 2011
Filed:
Sep. 28, 2006
Toru Mori, Tokyo, JP;
Yoshimi Kubo, Tokyo, JP;
Akira Okamoto, Tokyo, JP;
Yasuyuki Nakamura, Tokyo, JP;
Toru Mori, Tokyo, JP;
Yoshimi Kubo, Tokyo, JP;
Akira Okamoto, Tokyo, JP;
Yasuyuki Nakamura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
NEC Toshiba Space Systems, Ltd., Tokyo, JP;
Abstract
In an Mn-containing perovskite oxide which is a conventional phase-change substance (AB)MnO, when the mixing amount x is increased, the transition temperature (Tc) is shifted to higher temperature side, but the slope of a change in the emittance become gentle and Δε (ε at higher temperature−ε at lower temperature) also become small. In the present invention, the compositional formula of the phase-change substance is the Mn-containing perovskite oxide represented by (AB)MnOwith 0<y in which the Mn ratio is changed from stoichiometric composition, thereby shifting the transition temperature (Tc) to a higher temperature with the emittance characteristic thereof comparable to that of the phase-change substance having the composition which is not changed from stoichiometric composition.