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:
Mar. 02, 1999
Filed:
May. 17, 1996
Applicant:
Inventors:
Yoshihiro Ishimaru, Yokohama, JP;
Yuuji Mizuno, Kashiwa, JP;
Katsumi Suzuki, Kodaira, JP;
Youichi Enomoto, Tokyo, JP;
Shoji Tanaka, Tokyo, JP;
Assignees:
Fujitsu Ltd., Kanagawa, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
NEC Corp., Tokyo, JP;
International Superconductivity Technology Center, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
505190 ; 505329 ; 505702 ; 257 33 ; 257 34 ;
Abstract
An oxide superconductor element, produced by forming a damaged region on a substrate surface by the Ga.sup.+ focusing ion beam method and then depositing an oxide superconductor thin-film over it, is characterized in that a NdBa.sub.2 Cu.sub.3 O.sub.7-y (0.ltoreq.y.ltoreq.0.5) oxide superconductor is used in a tunnel junction having a tunneling barrier region with weak superconductivity.