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. 14, 1989
Filed:
Mar. 11, 1988
Applicant:
Inventors:
Goro Saiki, Kawasaki, JP;
Jiro Kondo, Kawasaki, JP;
Koichi Takeda, Kawasaki, JP;
Mutsuo Maki, Kitakyushu, JP;
Tutomu Ooki, Kitakyushu, JP;
Assignee:
Nippon Steel Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75 / ; 21912159 ; 21912137 ; 21912153 ; 21912148 ; 31511151 ;
Abstract
Ultrafine particles of metals, metallic compounds, and ceramics can be produced by heating a starting material supplied hermetically with a plurality of direct current plasma currents combined at a central axis of a work coil for generating high frequency induction plasma positioned under the direct current plasma generated zone. Apparatuses used therefor are also disclosed.