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:
May. 03, 1977
Filed:
Feb. 14, 1975
Applicant:
Inventors:
Takewo Chiku, Toyota, JA;
Kiyoshi Ninomiya, Nagoya, JA;
Takashi Yoshida, Nagoya, JA;
Takeshi Kogiso, Nagoya, JA;
Hiroaki Hayashi, Nagoya, JA;
Noboru Matsui, Konan, JA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106 734 ; 106 65 ; 264 61 ; 264 65 ;
Abstract
A beta-alumina polycrystal article permeable to sodium and potassium ions made by sintering .beta.-alumina and tantalum. The article evidences high corrosion resistance against sodium, potassium and their ions, and is especially useful as a solid electrolyte for a sodium-sulfur battery because of its excellent durability.