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:
Oct. 09, 2001
Filed:
Sep. 13, 1999
Applicant:
Inventors:
Hideo Ihara, Tsukuba, JP;
Yoshiyasu Sekita, Tsukuba, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/200 ; H01L 3/912 ;
U.S. Cl.
CPC ...
H01B 1/200 ; H01L 3/912 ;
Abstract
A copper-based high-temperature superconducting material includes a carrier supply layer overdoped with carriers; and a superconducting layer comprised of at least three CuO,layers that are selectively doped with the carriers; whereby a high superconducting transition temperature (Tc) is maintained to be not less than 116 K, critical current density (Jc) is improved to be 5×10,A/cm,(77 K, 0 T), and irreversible field (Hirr) is improved to be not less than 7 T.