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. 30, 2013
Filed:
May. 07, 2008
Yasuo Takahashi, Tokyo, JP;
Tsutomu Koizumi, Tokyo, JP;
Yuji Aoki, Tokyo, JP;
Atsushi Kaneko, Tokyo, JP;
Takayo Hasegawa, Tokyo, JP;
Yasuo Takahashi, Tokyo, JP;
Tsutomu Koizumi, Tokyo, JP;
Yuji Aoki, Tokyo, JP;
Atsushi Kaneko, Tokyo, JP;
Takayo Hasegawa, Tokyo, JP;
Abstract
A tape-shaped oxide superconductor includes a 15 to 100 nm-thick Ce—Gd—O-based oxide layer (Ce:Gd=40:60 to 70:30 molar ratio) and a 100 nm-thick Ce—Zr—O-based oxide layer (Ce:Zr=50:50 molar ratio) as first and second intermediate layers are formed by MOD on an Ni-base alloy substrate having a half value width (FWHM:Δφ) of 6.5 degrees. A 150 nm-thick CeOoxide layer as a third intermediate layer is formed on the second intermediate layer by RF sputtering. A 1 μm-thick YBCO superconducting layer is formed by TFA-MOD on the three-layer structure. In the tape-shaped oxide superconductor, the Δφ values of the first to third intermediate layers are (6.0 to 6.5) degrees, (6.0 to 6.6) degrees, and (6.0 to 6.6) degrees, respectively, and the Jc value of the YBCO superconducting layer in liquid nitrogen is 1.8 to 2.2 MA/cm.