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:
Jun. 25, 1985
Filed:
May. 02, 1984
Applicant:
Inventors:
Takashi Yamauchi, Tokuyama, JP;
Shigeaki Maruhashi, Kure, JP;
Shinkichi Koike, Hachinohe, JP;
Keizo Yamada, Hachinohe, JP;
Assignees:
Pacific Metals & Co. Ltd., both of, JP;
Nisshin Steel Co. Ltd., both of, JP;
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 515 ; 75 516 ; 75 53 ; 75 5912 ;
Abstract
A process for producing a low P chromium-containing steel in an AOD vessel from a high P chromium-containing molten pig iron comprising a first stage of recarborization, desiliconzation and temperature raising, a second stage of dephosphorization with slag, which may be repeated, and a third stage of conventional refining.
Yamauchi, Takashi. (1985). Process for producing low p chromium-containing steel (U.S. Patent No. 4525209). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4525209
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile