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:
Jan. 31, 1978
Filed:
Dec. 15, 1976
Applicant:
Inventor:
Takao Namae, Tokyo, JA;
Assignee:
Nihon Denshi Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250310 ; 250397 ;
Abstract
A scanning electron microscope for displaying a scanning image on a cathode ray tube screen. A high magnification image is displayed within a low magnification image displayed on a cathode ray tube screen so that the relative positions of the low and high magnification images can be immediately observed. The magnification and the display area of the high magnification image is varied continuously.