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:
Feb. 10, 1998
Filed:
Mar. 20, 1996
Tadashi Tatsuki, Tokyo, JP;
Seiji Adachi, Fujimi, JP;
Makoto Itoh, Kawanishi, JP;
Toshiyuki Tamura, Sagamihara, JP;
Changqin Jin, Beijing, JP;
Xiao-Jing Wu, Funabashi, JP;
Hisao Yamauchi, Yokohama, JP;
International Superconductivity Technology Center, Tokyo, JP;
The Furukawa Electric Co., Ltd., Sendai, JP;
Tohoku Electric Power, Miyagi, JP;
Abstract
The present invention is an oxide superconductor containing alkaline earth metal M (where M is at least one element of Ba, Sr, and Ca) and having a crystalline structure in which a portion based on two rock-salt structures including the alkaline earth metal M, oxygen, and chlorine, and a 2n-1 piece of infinite layer structure portion are alternately layered on each other, said 2n-1 piece of infinite layer structure portion having an atom layer including copper atoms and oxygen atoms in a ratio of 1 to 2 and of an atom layer including only M atoms layered on each other (where n is an integer of 1 or more and where copper atoms and oxygen atom are contained in a ratio of 1 to 2 if n is 1).