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:
Jan. 24, 1995
Filed:
Mar. 15, 1993
Atsushi Nishiwaki, Chuo-ku, Osaka, JP;
Norihito Ikemiya, Takatsuki, JP;
Hiroshi Uchiyama, Hirakata, JP;
Hideo Inagaki, Hirakata, JP;
Yasuo Sawada, Tokyo, JP;
Kazumi Ogino, Osaka, JP;
Abstract
This invention provides a method for the surface treatment of a metal, which comprises the steps of: placing at least a surface to be treated of a metal to be treated between two electrodes facing each other under an atmosphere of a mixed gas consisting of an inert gas and a reactant gas; and plasma exciting said mixed gas under atmospheric pressure to effect glow discharge between said electrodes. The method of the present invention uses an apparatus simpler than that used in a conventional method and can inject into the surface layer of a metal, even those elements which have been difficult to with the conventional method, and can readily modify surface properties of a metal such as surface hardness, surface wettability, etc.