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:
Jul. 16, 1991
Filed:
Jul. 18, 1988
Applicant:
Inventors:
Yasunobu Ogata, Kumagaya, JP;
Toshiyuki Kasakoshi, Kumagaya, JP;
Yusuke Iyori, Fukaya, JP;
Kenzi Maruta, Kumagaya, JP;
Tsutomu Iimura, Kumagaya, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C01F / ; C01G / ; C04B / ;
U.S. Cl.
CPC ...
505-1 ; 252521 ; 423593 ; 423604 ; 423635 ; 501 94 ; 501123 ; 501126 ; 505725 ;
Abstract
This invention provides a method for producing an oxide superconductor which has a uniform texture and is markedly high in sintered density and current density. The method involves the formation of intermediate products from the starting materials. The intermediate products are then used to form the final product. Specifically, to form an oxide superconducting material having a compositional formula