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. 18, 2009
Filed:
Dec. 22, 2004
Nobuyuki Suganuma, Nagoya, JP;
Mitsuyoshi Shiba, Toukai, JP;
Yoshiaki Matsubara, Nagoya, JP;
Makoto Hirasawa, Kasugai, JP;
Nobuyuki Suganuma, Nagoya, JP;
Mitsuyoshi Shiba, Toukai, JP;
Yoshiaki Matsubara, Nagoya, JP;
Makoto Hirasawa, Kasugai, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
An oil agent of the kind and amount suitable for a post-step is applied on a workpiece regardless of the kind and residual amount of an oil agent used in a pre-step. A workpiece on which a first oil agent is deposited is immersed in a degreasing solution, taken out of the degreasing solution and cleaned to thereby remove all the first oil agent. Then, the workpiece having all the first oil agent removed is immersed in an oil agent solution to thereby newly deposit a second oil agent of the kind and amount suitable for a post-step on the workpiece.