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:
Nov. 21, 1989
Filed:
Aug. 01, 1988
Applicant:
Inventors:
Kozo Sonobe, Koriyama, JP;
Takashi Fukuzawa, Koriyama, JP;
Kohsuke Takeuchi, Koriyama, JP;
Tatushi Tabata, Koriyama, JP;
Hiroshi Fukuoka, Tokyo, JP;
Kunio Hisamatsu, Tokyo, JP;
Makoto Katamura, Kure, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C21B / ;
U.S. Cl.
CPC ...
501 28 ; 65 19 ; 65 20 ; 75 30 ; 75 53 ; 75257 ;
Abstract
A steel slag or iron slag which is a by-product generated at the time of steel or iron metallurgy and a method of manufacturing the same are disclosed. This slag is characterized in that it contains at least 0.15 wt % of boron component in the form of B.sub.2 O.sub.3 and has resistance against degradation in the fused slag cooling-down process and against generation of yellowish turbid water at the time of contact of slag with rain water.