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:
Aug. 02, 2005
Filed:
Jun. 27, 2002
Yasuhiro Nakao, Sayama, JP;
Hiroto Shoji, Sayama, JP;
Kunitoshi Sugaya, Sayama, JP;
Takashi Kato, Sayama, JP;
Takaharu Echigo, Sayama, JP;
Satoshi Matsuura, Sayama, JP;
Kenichi Kawasaki, Wako, JP;
Yasuhiro Nakao, Sayama, JP;
Hiroto Shoji, Sayama, JP;
Kunitoshi Sugaya, Sayama, JP;
Takashi Kato, Sayama, JP;
Takaharu Echigo, Sayama, JP;
Satoshi Matsuura, Sayama, JP;
Kenichi Kawasaki, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An aluminum casting method includes the step of applying in advance a mold release agent including magnesium to a mold surface. Thereafter, a nitrogen gas is injected into a cavity to cause reaction between the magnesium in the surface of the mold release agent and the nitrogen gas, thereby forming magnesium nitride. Since the nitrogen gas reacts only with the magnesium exposed in the surface of the mold release agent, the forming time of the magnesium nitride is reduced and also the amount of nitrogen gas used is reduced.