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. 01, 1994
Filed:
Nov. 16, 1992
Applicant:
Inventors:
Kiyoshiro Hosokawa, Hyogo, JP;
Hitoshi Nishiwaki, Hyogo, JP;
Kouichi Nishi, Hyogo, JP;
Seiji Hanagiri, Oita, JP;
Shiro Sukenari, Oita, JP;
Takenori Nakamichi, Oita, JP;
Naoki Tsutsui, Aichi, JP;
Tsuyoshi Matsuda, Aichi, JP;
Kouzou Akao, Aichi, JP;
Assignees:
Other;
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
501120 ; 501109 ; 501121 ;
Abstract
The present invention relates to a refractory for casting process composed mainly of 0.3 to 10 wt % light burned magnesia, 3 to 30 wt % micro fine calcined alumina, and the remainder of either sintered alumina, fused alumina and MgO-Al.sub.2 O.sub.3 spinel or sintered alumina and MgO-Al.sub.2 O.sub.3 spinel or fused alumina and MgO-Al.sub.2 O.sub.3 spinel.