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:
May. 08, 2012
Filed:
Jun. 05, 2009
Toshiyuki Saito, Toyoake, JP;
Takumi Mio, Kariya, JP;
Koji Nishi, Anjo, JP;
Hajime Fukami, Obu, JP;
Atsushi Eto, Okazaki, JP;
Hiroyuki Yao, Okazaki, JP;
Toshiyuki Saito, Toyoake, JP;
Takumi Mio, Kariya, JP;
Koji Nishi, Anjo, JP;
Hajime Fukami, Obu, JP;
Atsushi Eto, Okazaki, JP;
Hiroyuki Yao, Okazaki, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
A metal part in which a base material of silicon-aluminum alloy having 1 to 25% by mass of silicon as an anode is immersed in an electrolyte together with a cathode, and at least a portion of a surface of the base material is anodized and coated with an anodic oxide film. A current density provided to both the anode and the cathode is increased from an initial current density of 0 A/dmat a rate between 0.15 and 0.35 A/dmper minute, wherein once the current density reaches a prescribed current density of between 0.8 A/dmand 1.2 A/dm, the current density provided to the anode and the cathode is maintained at the prescribed current density.