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:
Apr. 29, 2008
Filed:
Feb. 10, 2003
Hisatomi Taguchi, Nagoya, JP;
Atsushi Fukaya, Obu, JP;
Shigeo Nagaya, Nagoya, JP;
Kiyoshi Komura, Nagoya, JP;
Kiichi Hirano, Nagoya, JP;
Hiroshi Tenjikukatsura, Nagoya, JP;
Hisatomi Taguchi, Nagoya, JP;
Atsushi Fukaya, Obu, JP;
Shigeo Nagaya, Nagoya, JP;
Kiyoshi Komura, Nagoya, JP;
Kiichi Hirano, Nagoya, JP;
Hiroshi Tenjikukatsura, Nagoya, JP;
Noritake Co., Limited, Nagoya, JP;
Chubu Electric Power Co., Inc., Nagoya, JP;
KCM Corporation, Nagoya, JP;
Abstract
It is an object of the present invention to provide a raw material powder for stably obtaining a dense sinter that is prevented from cracking, and a method for manufacturing this powder, and a method for manufacturing a lanthanum-based oxide ion conductor in which this raw material powder is used. The raw material powder manufacturing method of the present invention is a method for manufacturing a raw material powder for forming an oxide ion conductor composed of a multi-component metal oxide including lanthanum or lanthanide, wherein a mixed powder blended such that all of the elements constituting said multi-component metal oxide are included is prefired, after which this prefired powder is exposed to water or moist gas so as to expand at least some of the particles in said powder. Alternatively, two types of mixed powder with different components are prefired separately, after which the prefired powders are blended in a specific ratio.