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:
Mar. 30, 1993
Filed:
Apr. 09, 1991
Applicant:
Inventor:
Masao Akabane, Iruma, JP;
Assignee:
Nippon CMK Corp., , JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
324718 ; 324715 ; 3241 / ; 324537 ;
Abstract
A method for inspecting a printed circuit board having through-holes filled with conductive paste and having a pair of current measurement lands and a pair of resistance measurement lands. The pairs of current measurement lands and resistance measurement lands are used to measure voltage and current through the through-holes using the four-probe method, thereby preventing incomplete inspection of printed circuit boards and improving the dependability of tests on the packing conditions of the conductive paste in the through-holes.
Akabane, Masao. (1993). Method for inspecting printed circuit boards with through-holes (U.S. Patent No. 5198778). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5198778
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile