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:
Nov. 01, 1994
Filed:
Aug. 02, 1993
Applicant:
Inventors:
Shoji Tanaka, Tokyo, JP;
Koichi Kitazawa, Tokyo, JP;
Shin-ichi Uchida, Tokyo, JP;
Hidenoir Takagi, Tokyo, JP;
Assignee:
University of Tokyo, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ; H01L / ;
U.S. Cl.
CPC ...
505125 ; 505775 ; 505776 ; 505777 ; 505778 ; 505230 ; 505150 ; 252518 ; 252521 ;
Abstract
The disclosed superconductive material has a characteristic in accordance with which electrical resistance disappears at a temperature of at least more than the boiling point of 20.3.degree. K. (-252.7.degree. C.) of liquid hydrogen and relates to La-Ba-Cu-O series superconductive material. Said superconductive material consists essentially of a composition having the formula