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:
Aug. 17, 2004
Filed:
Mar. 18, 2002
Applicant:
Inventors:
Noboru Ichinose, Yokohama, JP;
Shinsuke Arita, Zama, JP;
Toshiaki Ueno, Yokohama, JP;
Yuji Urano, Yokohama, JP;
Assignee:
Hokushin Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 3/512 ; H01B 1/02 ; C01D 1/02 ;
U.S. Cl.
CPC ...
H01L 3/512 ; H01B 1/02 ; C01D 1/02 ;
Abstract
The invention provides a thermoelectric conversion material which is low toxic and can be used at a high temperature of 500° C. or higher without variation in performance, and a thermoelectric conversion device containing the material. The thermoelectric conversion material is formed of an oxide represented by (Ca M )Co O (M: Sr or Ba, 1.2>x>0.5).