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:
Nov. 22, 1994
Filed:
Nov. 20, 1991
Yoshinori Sezaki, Tenjinkitamachi, JP;
Takao Kanai, Tenjinkitamachi, JP;
Hitoshi Atsuta, Tenjinkitamachi, JP;
Ichirou Mandai, Kyoto, JP;
Abstract
A cross operator is applied to the image of a wiring pattern provided on a printed board, to obtain respective sizes of the image in first and second directions. When the condition that the size of the wiring pattern in one of first and second directions is larger than a threshold value but the size in the other direction is smaller than the threshold value is satisfied, it is decided that the wiring pattern is a wiring line., The width of the wiring line is measured with the operator and is compared with a predetermined allowable range of the width. A land and a pin hole which may be present on the printed board do not satisfy the condition for detecting the wiring line and accurate inspection of the wiring line is attained.