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:
Jun. 13, 1995
Filed:
Mar. 18, 1994
Applicant:
Inventors:
Haruo Takahashi, Tokyo, JP;
Kiyoshi Hasegawa, Tokyo, JP;
Assignee:
Seiko Instruments Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
378 50 ; 378 44 ;
Abstract
The center of a band-shaped region on a sample is searched by first coarsely scanning a region of the sample, calculating a tentative center of the sample coarsely from scanning result, collecting data with reference to the tentative center, calculating the center of gravity from the result, and making a correction for raising the precision of the center of gravity determination.