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:
Feb. 22, 2011
Filed:
Feb. 09, 2004
Akihiro Goto, Tokyo, JP;
Masao Akiyoshi, Tokyo, JP;
Katsuhiro Matsuo, Aichi, JP;
Hiroyuki Ochiai, Tokyo, JP;
Mitsutoshi Watanabe, Tokyo, JP;
Takashi Furukawa, Tokyo, JP;
Akihiro Goto, Tokyo, JP;
Masao Akiyoshi, Tokyo, JP;
Katsuhiro Matsuo, Aichi, JP;
Hiroyuki Ochiai, Tokyo, JP;
Mitsutoshi Watanabe, Tokyo, JP;
Takashi Furukawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
To form a thick coating by a discharge surface treatment, a voltage between an electrode and a workpiece during a discharge is detected, and it is determined that a discharge surface treatment state is abnormal if it is detected that the voltage is reduced. With this arrangement, it is possible to accurately detect an unstable phenomenon in the discharge surface treatment, and take appropriate measures before a state of the coating and a state of the electrode are worsened due to the unstable phenomenon. By discriminating a stability of the discharge surface treatment, the coating and the electrode are prevented from being damaged.