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. 12, 1997
Filed:
Jul. 07, 1995
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
When an anodized film is to be formed, one formation-voltage input point is used. An interconnecting ring for anodization is provided between the input point and a pattern to be anodized. The interconnecting ring is in contact with and encloses the pattern. Another interconnecting ring to which the formation-voltage input point is connected is provided around the interconnecting ring. In addition, two junction points are provided at vertically symmetric positions with respect to the pattern. The junction points are connected to the interconnecting ring. The junction points are connected to upper connection terminals and lower connection terminals of the pattern by respective thin-line groups including a plurality of thin lines. The formation voltages at respective input points at the upper connection terminals and the lower connection terminals of the pattern are made equal to each other.