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. 22, 2011
Filed:
Jan. 29, 2004
Akihiro Goto, Tokyo, JP;
Masao Akiyoshi, Tokyo, JP;
Katsuhiro Matsuo, Nagoya, JP;
Hiroyuki Ochiai, Tokyo, JP;
Mitsutoshi Watanabe, Tokyo, JP;
Takashi Furukawa, Tokyo, JP;
Akihiro Goto, Tokyo, JP;
Masao Akiyoshi, Tokyo, JP;
Katsuhiro Matsuo, Nagoya, JP;
Hiroyuki Ochiai, Tokyo, JP;
Mitsutoshi Watanabe, Tokyo, JP;
Takashi Furukawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Ishikawajima-Harima Heavy Industries Co., Ltd., Tokyo, JP;
Abstract
An electrode is used to perform discharge surface treatment of a work piece. The electrode is made of a green compact obtained by compression-molding an electrode material including powder of any of a metal, a metallic compound, and ceramics. The discharge surface treatment includes generating an electric discharge between the electrode and the work piece in an atmosphere of a machining medium and forming a film consisting of a machining material on a surface of a work piece using energy produced by the electric discharge. The powder has an average particle diameter of 5 micrometer to 10 micrometers, and contains 40 volume percent or more of a component not forming or less easily forming carbide as a component for forming the film on the work piece. The electrode has a hardness in a range of B to 8B tested with a pencil scratch test for a coating film.