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. 02, 2013
Filed:
Dec. 07, 2006
Ryo Teranishi, Tokyo, JP;
Yuji Aoki, Tokyo, JP;
Junko Matsuda, Tokyo, JP;
Koichi Nakaoka, Tokyo, JP;
Teruo Izumi, Tokyo, JP;
Yuh Shiohara, Tokyo, JP;
Ryo Teranishi, Tokyo, JP;
Yuji Aoki, Tokyo, JP;
Junko Matsuda, Tokyo, JP;
Koichi Nakaoka, Tokyo, JP;
Teruo Izumi, Tokyo, JP;
Yuh Shiohara, Tokyo, JP;
The Jurical Foundation, Tokyo, JP;
SWCC Showa Cable Systems Co., Ltd., Tokyo, JP;
Abstract
A production process of a thick-film tape-shaped RE-type (123) superconductor having a high critical current value. The production process has the steps of providing a composite substrate having GdZrOand CeOstacked in that order onto a Hastelloy substrate, coating a raw material solution prepared by dissolving a trifluoroacetate of Y and Ba and a naphthenate of Cu onto the composite substrate, heat treating the coated composite substrate by calcination, then subjecting the calcined assembly to intermediate heat-treatment at a temperature below the temperature of heat-treatment for superconductor production, and then heat treating the assembly in an argon gas atmosphere under conditions of highest heating temperature 760° C., water vapor partial pressure 13.5%, and oxygen partial pressure 0.09% for superconductor production to produce a tape-shaped RE-type (123) superconductor having a YBCO superconducting film having a thickness of more than about 2 μm.