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:
Oct. 30, 1984
Filed:
Nov. 05, 1981
Applicant:
Inventors:
Shigeto Isakozawa, Katsuta, JP;
Morioki Kubozoe, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
324 713 ; 250397 ;
Abstract
An electron energy analyzing apparatus is disclosed in which electrons having passed through a sample are subjected to energy analysis, respective energy values of the crest and trough of an energy peak characterizing a predetermined substance in the sample are selected, subtraction is performed beetween output signals of a detector obtained respectively at the energy values, the sign of a difference between the output signals is judged to separate a background signal from an energy loss peak signal, and a distribution image of the substance is displayed on the basis of the energy loss peak signal containing no background signal.