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, 2004
Filed:
Jun. 02, 2000
Applicant:
Inventors:
Koichi Wakitani, Osaka, JP;
Noriaki Yukawa, Takaichi-gun, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 ; G06K 9/48 ; G06K 9/68 ;
U.S. Cl.
CPC ...
G06K 9/00 ; G06K 9/48 ; G06K 9/68 ;
Abstract
An input subject pattern is compared with a good product pattern that is registered beforehand, and a different portion of these is detected as a defect pattern. The detected defect pattern is classified in accordance with the features of the contour of the defect pattern.