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:
Jul. 08, 1997
Filed:
Nov. 01, 1995
Shigeki Matsuda, Okazaki, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
The present invention is a method of forming a phosphate chemical treatment film which is efficient and allows a high-quality chemical film to be obtained, by which a substance to be treated is subjected to electrolytic treatment while removing the sludge, which consists of impurities other than the unavoidable impurities in the phosphate chemical treatment bath. According to this method, an adequate phosphate chemical treatment film may be formed onto any type of metal material, to provide phosphate chemical treatment films having thicknesses not obtainable by the prior art.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile