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:
Sep. 22, 1998
Filed:
Jan. 24, 1997
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-ken, JP;
Abstract
Disclosed is a method for producing oxide powders and complex oxide powders having an oxygen amount smaller than the stoichiometric amount. The method comprises: spraying a combustible liquid that contains at least one raw material of metals capable of having a plural number of valences and compounds of such metals; and firing the raw material to give a powder of an oxide of at least one of said metals. The oxygen amount in the atmosphere in which the combustible liquid containing said raw material is sprayed and fired is smaller than the total of the oxygen amount necessary for the complete combustion of said combustible liquid and the oxygen amount necessary for the conversion of said raw material into an oxide that is the most stable in air at room temperature.