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:
Jul. 27, 1999
Filed:
Jun. 04, 1997
Applicant:
Inventors:
Hideo Todokoro, Hinode-cho, JP;
Osamu Yamada, Hitachinaka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250310 ;
Abstract
A scanned image to be observed or to be recorded is formed by a plurality of two-dimensional scanning times (N times), an irradiating charged particle beam or a light beam is blanked in a two-dimensional scanning unit, and the averaged irradiation intensity is adjusted by thinning a plurality (<N) of scanning times among the N times of scanning.