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:
Mar. 16, 1993
Filed:
Jul. 16, 1991
Applicant:
Inventors:
Mitsue Koizumi, Toyonaka-shi, Osaka, JP;
Yoshinari Miyamoto, Kawanishi-shi, Hyogo, JP;
Manshi Ooyanagi, Ootsu, JP;
Kimiaki Tanihata, Hyogo, JP;
Osamu Yamada, Takatsuki, JP;
Ichiro Matsubara, Ikeda, JP;
Hiroshi Yamashita, Kawanishi, JP;
Assignees:
Other;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423409 ; 505-1 ; 505810 ; 505815 ;
Abstract
Process for preparing NbN superconducting material, characterized in that a bulk Nb is placed in powder including at least one metal which can be nitriding-burned, and then the powder is heated to be nitriding-burned in pressurized N.sub.2 atmosphere so that the bulk Nb is nitrided by the nitriding-burning of the powder.